MOTU M4 vs Focusrite Scarlett 4i4 (3rd Gen): Which Audio Interface is Right for You?

The Focusrite Scarlett 4i4 USB Audio/MIDI Interface (3rd Generation) and the MOTU M4 USB-C Audio-MIDI Interface are both top-tier options in the realm of audio interfaces, catering to musicians, producers, and content creators. Each has its unique strengths, making them suitable for different needs and preferences.
The Focusrite Scarlett 4i4 (3rd Gen) is known for its robust build quality and exceptional audio performance. It features four inputs and four outputs, making it versatile for various recording setups. The Scarlett 4i4 includes two upgraded Scarlett mic preamps with switchable Air mode, which emulates the famous ISA preamps, adding brightness and openness to your recordings. Additionally, it offers MIDI I/O for connecting MIDI gear and loopback functionality for streaming and podcasting. The Scarlett 4i4 connects via USB 2.0 and is compatible with both Mac and Windows systems. Focusrite's user-friendly software bundle, including Ableton Live Lite and Pro Tools First, enhances its appeal for beginners and professionals alike.
On the other hand, the MOTU M4 USB-C Audio-MIDI Interface stands out with its high-resolution ESS Sabre32 Ultra DAC technology, offering a 120 dB dynamic range. This results in pristine audio quality with ultra-low latency, making it ideal for critical listening and precise recording tasks. The M4 features two mic/line/instrument inputs and two additional line inputs, along with four balanced line outputs and a headphone output. It also includes a full-color LCD screen displaying level meters for all inputs and outputs, providing real-time visual feedback. The MOTU M4 connects via USB-C, ensuring fast data transfer and compatibility with modern computing devices. It also includes MIDI I/O and comes bundled with Performer Lite and Live Lite software, providing a comprehensive production environment.
In summary, the Focusrite Scarlett 4i4 (3rd Gen) is a versatile and user-friendly interface with excellent preamps and comprehensive software support, making it a great choice for both beginners and experienced users. The MOTU M4, with its superior DAC technology and detailed visual feedback, is ideal for those who prioritize audio fidelity and low latency. Both interfaces offer MIDI connectivity and come with valuable software bundles, catering to various recording and production needs.

In-Depth Comparison of Specifications, Advantages, and Disadvantages

Focusrite Scarlett 4i4 USB Audio Interface (3rd Generation)

Focusrite Scarlett 4i4 (3rd Generation)

MOTU M4

User Rating Based on Analysis of Reviews
Purchase Value 85% of users found the Focusrite Scarlett 4i4 to be of great purchase value due to its affordable price point paired with professional-grade features. Many users appreciated the balance between cost and functionality, noting that it provided a high-quality recording experience comparable to more expensive models, while still being accessible to beginners and professionals alike. 15% of users expressed dissatisfaction with the purchase value, primarily due to experiencing issues with the device's drivers or software compatibility. Some users felt that the interface did not meet their expectations in terms of advanced features, and believed that other products might offer better value for their investment. 85% Quality of Materials 90% of users were satisfied with the quality of materials used in the Focusrite Scarlett 4i4, praising its sturdy build and durable construction. Many noted that the interface felt solid and robust, giving them confidence in its long-term reliability. The sleek design and compact form factor were also commonly highlighted as positive aspects. 10% of users were dissatisfied with the quality of materials, with some reporting issues like loose knobs or connectivity problems after extended use. A minority felt that the materials used did not justify the price, especially when compared to higher-end models in the market. 90% Sound Quality 92% of users praised the sound quality of the Focusrite Scarlett 4i4, highlighting its clear and crisp audio output, which is crucial for professional recording. Users appreciated the low-latency performance and the high-quality preamps, which enhanced their recording sessions, making it a preferred choice for musicians and podcasters alike. 8% of users expressed dissatisfaction with the sound quality, mainly pointing out occasional issues with noise interference or distortion. Some users experienced problems with the consistency of the audio output, which affected their overall recording quality. 92% Ease of Use 88% of users found the Focusrite Scarlett 4i4 easy to use, appreciating the straightforward setup process and intuitive control layout. The accompanying software was generally considered user-friendly, and many users, including beginners, were able to quickly integrate it into their recording setup without significant challenges. 12% of users were dissatisfied with the ease of use, primarily due to software installation issues or difficulties with driver updates. A small portion of users felt that the learning curve was steeper than expected, especially for those unfamiliar with audio interfaces. 88% Driver Stability 80% of users reported satisfaction with the driver stability of the Focusrite Scarlett 4i4, noting that once installed, the drivers performed reliably and supported consistent audio performance during recording sessions. Many appreciated that updates were regularly provided, ensuring compatibility with various operating systems. 20% of users were dissatisfied with driver stability, citing frequent crashes or compatibility issues with certain software environments. Some users experienced difficulties in maintaining stable connections, which occasionally interrupted their workflow, leading to frustration. 80% Portability 87% of users appreciated the portability of the Focusrite Scarlett 4i4, mentioning its compact size and lightweight nature as ideal for mobile recording setups. Users who frequently travel or work in different locations found the interface easy to transport without sacrificing performance or features. 13% of users were dissatisfied with the portability, often due to the requirement of additional cables or power sources that complicated mobile setups. Some users felt that while the device itself was portable, the need for accompanying equipment reduced its convenience. 87% Software Integration 84% of users were satisfied with the software integration offered by the Focusrite Scarlett 4i4, noting that it worked seamlessly with popular DAWs and offered useful plug-in bundles. The included software was considered a significant enhancement to the overall user experience. 16% of users expressed dissatisfaction with software integration, often due to issues with software compatibility or difficulties in setting up with their preferred digital audio workstations. Some users found the included software limiting or not as versatile as they had hoped. 84% Versatility 89% of users rated the Focusrite Scarlett 4i4 highly for versatility, appreciating its ability to handle a variety of recording needs from music production to podcasting. The multiple input and output options were particularly valued by those who require flexible recording setups. 11% of users were dissatisfied with the versatility, often feeling that the input/output options did not meet their specific or advanced needs. Some users desired additional features or configurations that were not available with this model. 89% Latency 91% of users were pleased with the low latency performance of the Focusrite Scarlett 4i4, noting that it provided smooth and real-time monitoring, which is essential for professional recording. Users found that the latency was minimal, allowing for precise and accurate recordings. 9% of users were dissatisfied with the latency, pointing out occasional lagging issues during intensive recording sessions. Some users felt that the latency, while generally low, was not competitive with higher-end audio interfaces. 91% Aesthetic Design 94% of users were highly satisfied with the aesthetic design of the Focusrite Scarlett 4i4, praising its sleek and modern appearance. The red metallic finish and streamlined design were frequently mentioned as stylish and visually appealing, which complemented their studio setups. 6% of users expressed dissatisfaction with the aesthetic design, feeling that it was too minimalistic or did not match their personal style preferences. A few users desired more varied design options or color choices. 94% Connectivity 86% of users were satisfied with the connectivity options of the Focusrite Scarlett 4i4, appreciating the multiple input and output ports that allowed for diverse recording configurations. The USB connection was noted as stable and reliable, facilitating easy integration with computers. 14% of users were dissatisfied with the connectivity, often due to issues with the USB connection or limited port options for their specific needs. Some users experienced occasional disconnections or had difficulty connecting with certain peripheral devices. 86% Customer Support 82% of users were satisfied with the customer support provided by Focusrite, highlighting responsive and helpful service when troubleshooting issues or seeking product advice. Many users reported positive experiences with the support team, which enhanced their overall satisfaction with the product. 18% of users were dissatisfied with customer support, citing delays in response times or unhelpful interactions. Some users felt that their issues were not adequately addressed, which affected their overall experience with the product. 82% Durability 89% of users were satisfied with the durability of the Focusrite Scarlett 4i4, mentioning that it withstood regular use without significant wear or damage. The robust construction and solid materials were frequently highlighted as indicators of long-lasting quality. 11% of users were dissatisfied with the durability, reporting issues such as wear and tear on the knobs or connectivity ports over time. Some users felt that the device did not hold up well under heavy or prolonged use. 89% Compatibility 83% of users found the Focusrite Scarlett 4i4 to be highly compatible with various operating systems and DAWs, praising its versatility across different platforms. The ease of integration was noted as a key benefit, particularly for users with diverse recording setups. 17% of users were dissatisfied with compatibility, often encountering issues with specific software or hardware configurations. Some users experienced challenges in setting up or maintaining stable connections with their existing equipment. 83% Input/Output Options 88% of users appreciated the range of input and output options provided by the Focusrite Scarlett 4i4, which allowed for flexible recording and monitoring configurations. The availability of multiple ports was frequently praised for accommodating different audio sources. 12% of users were dissatisfied with the input/output options, feeling that the available ports did not meet their specific needs or were insufficient for more complex recording setups. Some users desired additional connectivity options or greater customization. 88% Preamp Quality 93% of users were highly satisfied with the preamp quality of the Focusrite Scarlett 4i4, highlighting its clear and transparent sound reproduction. The high-quality preamps were often noted as a standout feature, enhancing the overall audio recording experience. 7% of users expressed dissatisfaction with the preamp quality, reporting occasional issues with noise or distortion. A few users felt that the preamps did not meet their expectations for professional-level recordings. 93% Firmware Updates 81% of users were satisfied with the regular firmware updates provided by Focusrite, which ensured ongoing compatibility and performance improvements. Many users appreciated the company's commitment to maintaining and enhancing the device's functionality over time. 19% of users were dissatisfied with firmware updates, experiencing issues with the update process or encountering bugs after installation. Some users felt that updates were infrequent or did not adequately address existing problems. 81% User Manual 84% of users found the user manual for the Focusrite Scarlett 4i4 to be informative and helpful, providing clear instructions for setup and operation. Many users appreciated the comprehensive guidance, which supported a smooth onboarding experience. 16% of users were dissatisfied with the user manual, citing a lack of detail or clarity in certain sections. Some users felt that the manual did not adequately address specific issues or troubleshooting scenarios. 84% MIDI Integration 86% of users were satisfied with the MIDI integration capabilities of the Focusrite Scarlett 4i4, allowing for seamless connectivity with MIDI devices. Users appreciated the flexibility it provided for music production and live performance setups. 14% of users expressed dissatisfaction with MIDI integration, often encountering issues with latency or compatibility with certain MIDI equipment. Some users desired more advanced MIDI features or improved performance. 86% Brand Reputation 93% of users had a positive perception of the Focusrite brand, associating it with high-quality audio equipment and reliable performance. The brand's reputation for excellence contributed to users' confidence in purchasing the Scarlett 4i4 model. 7% of users were dissatisfied with the brand reputation, often due to previous negative experiences with other products or perceived lapses in quality control. Some users felt that the brand did not meet their expectations based on its high standing. 93%	Purchase Value 87% of users found the MOTU M4 USB-C Audio Interface to be a great value for money, highlighting its competitive pricing compared to other interfaces with similar features. Many appreciated the high-quality preamps and low-latency performance, which are often found in more expensive models. Users noted that the interface provided excellent sound quality and a robust build, making it a worthwhile investment for both amateur and professional audio creators. 13% of users expressed dissatisfaction with the purchase value, feeling that the interface did not meet their expectations in terms of performance relative to its price. Some users encountered issues with the software or compatibility with certain operating systems, which they felt detracted from the overall value. Additionally, a few users mentioned that other brands offered similar features at a lower cost. 87% Sound Quality 92% of users were highly satisfied with the sound quality provided by the MOTU M4. They praised its clear and transparent audio output, which significantly improved their recording and playback experience. Many users appreciated the pristine sound and the high-quality DA converters, which they felt allowed for professional-level recordings without colorization of the input signal. 8% of users were not satisfied with the sound quality, mainly due to individual preferences or specific issues with their setup. Some reported that the sound output did not meet their expectations for clarity or depth, which may be attributed to mismatched equipment or improper calibration. A few users experienced noise or interference that they believed was related to the interface. 92% Build Quality 90% of users praised the MOTU M4 for its solid build quality. They appreciated the sturdy metal chassis, which provided durability and a premium feel. Many users noted that the interface could withstand the rigors of both studio use and on-the-go recording, and liked the high-quality knobs and buttons that enhanced the user experience. 10% of users were not satisfied with the build quality, citing issues such as loose knobs or buttons that felt flimsy. A few users experienced physical defects, such as poorly fitted parts or cosmetic damage. While these cases were relatively rare, they impacted the overall perception of the interface's durability for those affected. 90% Ease of Use 85% of users found the MOTU M4 user-friendly, highlighting its straightforward setup process and intuitive controls. Many appreciated the clear labeling and layout of the interface, which made it easy to navigate without prior technical experience. Users felt that the accompanying software was well-designed and complemented the hardware effectively, adding to the convenience of use. 15% of users found the MOTU M4 challenging to use, often due to difficulties with the initial setup or software installation. Some users mentioned that the documentation was not detailed enough, requiring them to seek additional help online. Others experienced configuration issues with certain DAWs, which took time to troubleshoot and resolve. 85% Software Compatibility 78% of users were satisfied with the software compatibility of the MOTU M4, reporting smooth integration with major digital audio workstations (DAWs) and operating systems. They appreciated the stable drivers and the ease of configuring the interface with their existing audio setups, which facilitated seamless recording and editing sessions. 22% of users encountered software compatibility issues, particularly with less common DAWs or older operating systems. Some reported driver instability or lag during sessions, which affected their workflow. A number of users also pointed out the lack of dedicated apps or support for mobile devices, limiting the interface's versatility for certain use cases. 78% Latency Performance 91% of users were highly satisfied with the latency performance of the MOTU M4, noting its low-latency monitoring capabilities and efficient driver performance. This aspect was particularly praised by musicians and producers who require real-time audio feedback for recording and mixing, as it allowed them to work without noticeable delay. 9% of users experienced latency issues, which they attributed to their specific computer configurations or the need for additional optimization. Some users found that latency increased when using multiple plugins or high sample rates, which disrupted their workflow and required adjustments to mitigate. 91% Customer Support 74% of users were satisfied with the customer support provided by MOTU, appreciating the responsive and helpful service they received when encountering issues with the M4. Many users found the support team knowledgeable and capable of resolving their problems efficiently, which increased their overall satisfaction with the product. 26% of users were dissatisfied with customer support, reporting slow response times and unhelpful resolutions to their inquiries. Some users felt that their issues were not adequately addressed, leading to prolonged downtime and frustration. A few also mentioned that the support resources available online were insufficient for troubleshooting their specific problems. 74% Portability 89% of users appreciated the portability of the MOTU M4, noting its compact size and lightweight design. This made it easy to transport and ideal for mobile recording setups or small studio spaces. Users liked that it could easily fit into a backpack or gear bag, making it convenient for musicians and producers on the move. 11% of users found the portability of the MOTU M4 lacking, primarily due to the need for additional cables or power sources in certain setups. Some users mentioned that while the size was compact, the interface did not feel as rugged as other portable options, causing concern about potential damage during transport. 89% Input/Output Options 82% of users were satisfied with the input/output options offered by the MOTU M4, highlighting the versatility provided by the combination of XLR, line, and MIDI inputs. Users enjoyed the ability to connect a range of instruments and devices, which made the interface suitable for various recording scenarios. 18% of users felt that the input/output options were limited, particularly for more complex audio setups. Some users desired additional inputs or outputs to accommodate larger sessions, while others found the lack of digital I/O options a drawback for integrating with certain studio equipment. 82% Design 88% of users appreciated the design of the MOTU M4, praising its sleek, modern look and intuitive control layout. The interface's aesthetic appeal and practical design elements, such as the large volume knob and clear metering displays, were frequently mentioned as positive aspects that enhanced the user experience. 12% of users were not satisfied with the design, citing minor ergonomic issues such as cramped control spacing or less intuitive button placement. Some users felt that the visual design could be improved for easier navigation during sessions, particularly in low-light environments. 88% Durability 86% of users were satisfied with the durability of the MOTU M4, noting its robust construction and resilience to wear and tear. Many users felt confident in its long-term performance, even with regular use in demanding environments. This aspect added to the perceived value and reliability of the interface. 14% of users expressed concerns about durability, often due to personal experiences with wear-related issues or defective units. Some users reported problems with connectors or components becoming loose over time, which affected their confidence in the interface's longevity. 86% Aesthetic Appeal 84% of users were pleased with the aesthetic appeal of the MOTU M4, appreciating its sleek, understated design that blended well with other studio equipment. Users liked the clean lines and professional appearance, which contributed to a positive perception of the product's quality. 16% of users were less impressed with the aesthetic appeal, feeling that the design was too plain or lacking distinctive features. Some users suggested that more vibrant color options or unique design elements could enhance the interface's visual presence. 84% Setup Process 80% of users found the setup process for the MOTU M4 straightforward and hassle-free. They appreciated the clear instructions and minimal steps required to get the interface up and running. The straightforward installation of drivers and software contributed to a smooth start for most users. 20% of users encountered challenges during the setup process, often related to driver installation or compatibility with their specific operating systems. Some users reported issues with outdated instructions or the need for manual troubleshooting to resolve initial setup problems. 80% Connectivity 81% of users were satisfied with the connectivity options of the MOTU M4, highlighting the versatile USB-C connection that provided stable data transfer. Users appreciated the convenience of a single cable for power and data, which simplified their setup and reduced cable clutter. 19% of users had issues with connectivity, primarily related to USB-C compatibility with older systems or the need for adapters. Some users experienced intermittent connection problems, which they attributed to cable quality or port compatibility issues. 81% Driver Stability 75% of users were pleased with the stability of the drivers provided with the MOTU M4, noting that they facilitated consistent and reliable performance across different applications. Users appreciated the regular updates and support from MOTU to maintain optimal driver functionality. 25% of users experienced driver stability issues, which impacted their usage of the interface. Some reported crashes or glitches during sessions, requiring frequent updates or reinstallations to resolve. Others found the drivers less stable on certain operating systems, leading to frustration. 75% User Interface 83% of users were satisfied with the user interface of the MOTU M4, praising its intuitive design and easy-to-navigate controls. Users found the interface straightforward, with clearly labeled inputs and outputs that simplified the recording process. 17% of users found the user interface lacking, mainly due to personal preferences or specific workflow needs. Some users desired more customizable options or advanced features that were not available with the current interface design. 83% Preamp Quality 89% of users were impressed with the preamp quality of the MOTU M4, noting the clean and transparent sound that enhanced their recordings. Users appreciated the low noise floor and ample headroom provided by the preamps, which allowed for detailed and dynamic audio capture. 11% of users were not satisfied with the preamp quality, often citing noise issues or insufficient gain for certain microphones. Some users found that the preamps did not perform as well as those in higher-end interfaces, though they acknowledged the trade-off for the price point. 89% Firmware Updates 77% of users appreciated the availability of firmware updates for the MOTU M4, which improved functionality and addressed common issues. Users valued the proactive approach taken by MOTU to enhance the interface's performance over time through updates. 23% of users were dissatisfied with the firmware update process, often due to difficulties in installation or lack of clear instructions. Some users experienced problems after updates, such as changes in settings or new bugs, which required further troubleshooting. 77% Overall Satisfaction 88% of users expressed overall satisfaction with the MOTU M4, praising its performance, build quality, and value. Users felt that it met or exceeded their expectations in most areas, making it a highly recommended choice for those seeking a reliable audio interface. 12% of users were not fully satisfied with their experience, often due to isolated issues with specific features or compatibility. While most found the product to be satisfactory, these users highlighted areas for improvement to enhance the overall user experience. 88% Metering Accuracy 84% of users were satisfied with the metering accuracy of the MOTU M4, noting the clear and precise visual feedback provided during recording and playback. Users appreciated the detailed meters that allowed for effective monitoring of audio levels. 16% of users encountered issues with metering accuracy, often related to discrepancies between the interface's meters and those in their DAW. Some users found the visual feedback less responsive or precise than expected, impacting their ability to accurately monitor levels. 84% Output Quality 90% of users were impressed with the output quality of the MOTU M4, highlighting its clear and detailed sound reproduction. Many users noted the high-quality headphone and line outputs, which provided accurate audio representation for mixing and monitoring. 10% of users were not satisfied with the output quality, often due to specific issues with their setup or preferences. Some users experienced faint noise or distortion, which they attributed to external factors or mismatched equipment rather than the interface itself. 90% Show More

User Rating Based on Analysis of Reviews

Purchase Value

85% of users found the Focusrite Scarlett 4i4 to be of great purchase value due to its affordable price point paired with professional-grade features. Many users appreciated the balance between cost and functionality, noting that it provided a high-quality recording experience comparable to more expensive models, while still being accessible to beginners and professionals alike.

15% of users expressed dissatisfaction with the purchase value, primarily due to experiencing issues with the device's drivers or software compatibility. Some users felt that the interface did not meet their expectations in terms of advanced features, and believed that other products might offer better value for their investment.

85%
Quality of Materials

90% of users were satisfied with the quality of materials used in the Focusrite Scarlett 4i4, praising its sturdy build and durable construction. Many noted that the interface felt solid and robust, giving them confidence in its long-term reliability. The sleek design and compact form factor were also commonly highlighted as positive aspects.

10% of users were dissatisfied with the quality of materials, with some reporting issues like loose knobs or connectivity problems after extended use. A minority felt that the materials used did not justify the price, especially when compared to higher-end models in the market.

90%
Sound Quality

92% of users praised the sound quality of the Focusrite Scarlett 4i4, highlighting its clear and crisp audio output, which is crucial for professional recording. Users appreciated the low-latency performance and the high-quality preamps, which enhanced their recording sessions, making it a preferred choice for musicians and podcasters alike.

8% of users expressed dissatisfaction with the sound quality, mainly pointing out occasional issues with noise interference or distortion. Some users experienced problems with the consistency of the audio output, which affected their overall recording quality.

92%
Ease of Use

88% of users found the Focusrite Scarlett 4i4 easy to use, appreciating the straightforward setup process and intuitive control layout. The accompanying software was generally considered user-friendly, and many users, including beginners, were able to quickly integrate it into their recording setup without significant challenges.

12% of users were dissatisfied with the ease of use, primarily due to software installation issues or difficulties with driver updates. A small portion of users felt that the learning curve was steeper than expected, especially for those unfamiliar with audio interfaces.

88%
Driver Stability

80% of users reported satisfaction with the driver stability of the Focusrite Scarlett 4i4, noting that once installed, the drivers performed reliably and supported consistent audio performance during recording sessions. Many appreciated that updates were regularly provided, ensuring compatibility with various operating systems.

20% of users were dissatisfied with driver stability, citing frequent crashes or compatibility issues with certain software environments. Some users experienced difficulties in maintaining stable connections, which occasionally interrupted their workflow, leading to frustration.

80%
Portability

87% of users appreciated the portability of the Focusrite Scarlett 4i4, mentioning its compact size and lightweight nature as ideal for mobile recording setups. Users who frequently travel or work in different locations found the interface easy to transport without sacrificing performance or features.

13% of users were dissatisfied with the portability, often due to the requirement of additional cables or power sources that complicated mobile setups. Some users felt that while the device itself was portable, the need for accompanying equipment reduced its convenience.

87%
Software Integration

84% of users were satisfied with the software integration offered by the Focusrite Scarlett 4i4, noting that it worked seamlessly with popular DAWs and offered useful plug-in bundles. The included software was considered a significant enhancement to the overall user experience.

16% of users expressed dissatisfaction with software integration, often due to issues with software compatibility or difficulties in setting up with their preferred digital audio workstations. Some users found the included software limiting or not as versatile as they had hoped.

84%
Versatility

89% of users rated the Focusrite Scarlett 4i4 highly for versatility, appreciating its ability to handle a variety of recording needs from music production to podcasting. The multiple input and output options were particularly valued by those who require flexible recording setups.

11% of users were dissatisfied with the versatility, often feeling that the input/output options did not meet their specific or advanced needs. Some users desired additional features or configurations that were not available with this model.

89%
Latency

91% of users were pleased with the low latency performance of the Focusrite Scarlett 4i4, noting that it provided smooth and real-time monitoring, which is essential for professional recording. Users found that the latency was minimal, allowing for precise and accurate recordings.

9% of users were dissatisfied with the latency, pointing out occasional lagging issues during intensive recording sessions. Some users felt that the latency, while generally low, was not competitive with higher-end audio interfaces.

91%
Aesthetic Design

94% of users were highly satisfied with the aesthetic design of the Focusrite Scarlett 4i4, praising its sleek and modern appearance. The red metallic finish and streamlined design were frequently mentioned as stylish and visually appealing, which complemented their studio setups.

6% of users expressed dissatisfaction with the aesthetic design, feeling that it was too minimalistic or did not match their personal style preferences. A few users desired more varied design options or color choices.

94%
Connectivity

86% of users were satisfied with the connectivity options of the Focusrite Scarlett 4i4, appreciating the multiple input and output ports that allowed for diverse recording configurations. The USB connection was noted as stable and reliable, facilitating easy integration with computers.

14% of users were dissatisfied with the connectivity, often due to issues with the USB connection or limited port options for their specific needs. Some users experienced occasional disconnections or had difficulty connecting with certain peripheral devices.

86%
Customer Support

82% of users were satisfied with the customer support provided by Focusrite, highlighting responsive and helpful service when troubleshooting issues or seeking product advice. Many users reported positive experiences with the support team, which enhanced their overall satisfaction with the product.

18% of users were dissatisfied with customer support, citing delays in response times or unhelpful interactions. Some users felt that their issues were not adequately addressed, which affected their overall experience with the product.

82%
Durability

89% of users were satisfied with the durability of the Focusrite Scarlett 4i4, mentioning that it withstood regular use without significant wear or damage. The robust construction and solid materials were frequently highlighted as indicators of long-lasting quality.

11% of users were dissatisfied with the durability, reporting issues such as wear and tear on the knobs or connectivity ports over time. Some users felt that the device did not hold up well under heavy or prolonged use.

89%
Compatibility

83% of users found the Focusrite Scarlett 4i4 to be highly compatible with various operating systems and DAWs, praising its versatility across different platforms. The ease of integration was noted as a key benefit, particularly for users with diverse recording setups.

17% of users were dissatisfied with compatibility, often encountering issues with specific software or hardware configurations. Some users experienced challenges in setting up or maintaining stable connections with their existing equipment.

83%
Input/Output Options

88% of users appreciated the range of input and output options provided by the Focusrite Scarlett 4i4, which allowed for flexible recording and monitoring configurations. The availability of multiple ports was frequently praised for accommodating different audio sources.

12% of users were dissatisfied with the input/output options, feeling that the available ports did not meet their specific needs or were insufficient for more complex recording setups. Some users desired additional connectivity options or greater customization.

88%
Preamp Quality

93% of users were highly satisfied with the preamp quality of the Focusrite Scarlett 4i4, highlighting its clear and transparent sound reproduction. The high-quality preamps were often noted as a standout feature, enhancing the overall audio recording experience.

7% of users expressed dissatisfaction with the preamp quality, reporting occasional issues with noise or distortion. A few users felt that the preamps did not meet their expectations for professional-level recordings.

93%
Firmware Updates

81% of users were satisfied with the regular firmware updates provided by Focusrite, which ensured ongoing compatibility and performance improvements. Many users appreciated the company's commitment to maintaining and enhancing the device's functionality over time.

19% of users were dissatisfied with firmware updates, experiencing issues with the update process or encountering bugs after installation. Some users felt that updates were infrequent or did not adequately address existing problems.

81%
User Manual

84% of users found the user manual for the Focusrite Scarlett 4i4 to be informative and helpful, providing clear instructions for setup and operation. Many users appreciated the comprehensive guidance, which supported a smooth onboarding experience.

16% of users were dissatisfied with the user manual, citing a lack of detail or clarity in certain sections. Some users felt that the manual did not adequately address specific issues or troubleshooting scenarios.

84%
MIDI Integration

86% of users were satisfied with the MIDI integration capabilities of the Focusrite Scarlett 4i4, allowing for seamless connectivity with MIDI devices. Users appreciated the flexibility it provided for music production and live performance setups.

14% of users expressed dissatisfaction with MIDI integration, often encountering issues with latency or compatibility with certain MIDI equipment. Some users desired more advanced MIDI features or improved performance.

86%
Brand Reputation

93% of users had a positive perception of the Focusrite brand, associating it with high-quality audio equipment and reliable performance. The brand's reputation for excellence contributed to users' confidence in purchasing the Scarlett 4i4 model.

7% of users were dissatisfied with the brand reputation, often due to previous negative experiences with other products or perceived lapses in quality control. Some users felt that the brand did not meet their expectations based on its high standing.

93%

Purchase Value

87% of users found the MOTU M4 USB-C Audio Interface to be a great value for money, highlighting its competitive pricing compared to other interfaces with similar features. Many appreciated the high-quality preamps and low-latency performance, which are often found in more expensive models. Users noted that the interface provided excellent sound quality and a robust build, making it a worthwhile investment for both amateur and professional audio creators.

13% of users expressed dissatisfaction with the purchase value, feeling that the interface did not meet their expectations in terms of performance relative to its price. Some users encountered issues with the software or compatibility with certain operating systems, which they felt detracted from the overall value. Additionally, a few users mentioned that other brands offered similar features at a lower cost.

87%
Sound Quality

92% of users were highly satisfied with the sound quality provided by the MOTU M4. They praised its clear and transparent audio output, which significantly improved their recording and playback experience. Many users appreciated the pristine sound and the high-quality DA converters, which they felt allowed for professional-level recordings without colorization of the input signal.

8% of users were not satisfied with the sound quality, mainly due to individual preferences or specific issues with their setup. Some reported that the sound output did not meet their expectations for clarity or depth, which may be attributed to mismatched equipment or improper calibration. A few users experienced noise or interference that they believed was related to the interface.

92%
Build Quality

90% of users praised the MOTU M4 for its solid build quality. They appreciated the sturdy metal chassis, which provided durability and a premium feel. Many users noted that the interface could withstand the rigors of both studio use and on-the-go recording, and liked the high-quality knobs and buttons that enhanced the user experience.

10% of users were not satisfied with the build quality, citing issues such as loose knobs or buttons that felt flimsy. A few users experienced physical defects, such as poorly fitted parts or cosmetic damage. While these cases were relatively rare, they impacted the overall perception of the interface's durability for those affected.

90%
Ease of Use

85% of users found the MOTU M4 user-friendly, highlighting its straightforward setup process and intuitive controls. Many appreciated the clear labeling and layout of the interface, which made it easy to navigate without prior technical experience. Users felt that the accompanying software was well-designed and complemented the hardware effectively, adding to the convenience of use.

15% of users found the MOTU M4 challenging to use, often due to difficulties with the initial setup or software installation. Some users mentioned that the documentation was not detailed enough, requiring them to seek additional help online. Others experienced configuration issues with certain DAWs, which took time to troubleshoot and resolve.

85%
Software Compatibility

78% of users were satisfied with the software compatibility of the MOTU M4, reporting smooth integration with major digital audio workstations (DAWs) and operating systems. They appreciated the stable drivers and the ease of configuring the interface with their existing audio setups, which facilitated seamless recording and editing sessions.

22% of users encountered software compatibility issues, particularly with less common DAWs or older operating systems. Some reported driver instability or lag during sessions, which affected their workflow. A number of users also pointed out the lack of dedicated apps or support for mobile devices, limiting the interface's versatility for certain use cases.

78%
Latency Performance

91% of users were highly satisfied with the latency performance of the MOTU M4, noting its low-latency monitoring capabilities and efficient driver performance. This aspect was particularly praised by musicians and producers who require real-time audio feedback for recording and mixing, as it allowed them to work without noticeable delay.

9% of users experienced latency issues, which they attributed to their specific computer configurations or the need for additional optimization. Some users found that latency increased when using multiple plugins or high sample rates, which disrupted their workflow and required adjustments to mitigate.

91%
Customer Support

74% of users were satisfied with the customer support provided by MOTU, appreciating the responsive and helpful service they received when encountering issues with the M4. Many users found the support team knowledgeable and capable of resolving their problems efficiently, which increased their overall satisfaction with the product.

26% of users were dissatisfied with customer support, reporting slow response times and unhelpful resolutions to their inquiries. Some users felt that their issues were not adequately addressed, leading to prolonged downtime and frustration. A few also mentioned that the support resources available online were insufficient for troubleshooting their specific problems.

74%
Portability

89% of users appreciated the portability of the MOTU M4, noting its compact size and lightweight design. This made it easy to transport and ideal for mobile recording setups or small studio spaces. Users liked that it could easily fit into a backpack or gear bag, making it convenient for musicians and producers on the move.

11% of users found the portability of the MOTU M4 lacking, primarily due to the need for additional cables or power sources in certain setups. Some users mentioned that while the size was compact, the interface did not feel as rugged as other portable options, causing concern about potential damage during transport.

89%
Input/Output Options

82% of users were satisfied with the input/output options offered by the MOTU M4, highlighting the versatility provided by the combination of XLR, line, and MIDI inputs. Users enjoyed the ability to connect a range of instruments and devices, which made the interface suitable for various recording scenarios.

18% of users felt that the input/output options were limited, particularly for more complex audio setups. Some users desired additional inputs or outputs to accommodate larger sessions, while others found the lack of digital I/O options a drawback for integrating with certain studio equipment.

82%
Design

88% of users appreciated the design of the MOTU M4, praising its sleek, modern look and intuitive control layout. The interface's aesthetic appeal and practical design elements, such as the large volume knob and clear metering displays, were frequently mentioned as positive aspects that enhanced the user experience.

12% of users were not satisfied with the design, citing minor ergonomic issues such as cramped control spacing or less intuitive button placement. Some users felt that the visual design could be improved for easier navigation during sessions, particularly in low-light environments.

88%
Durability

86% of users were satisfied with the durability of the MOTU M4, noting its robust construction and resilience to wear and tear. Many users felt confident in its long-term performance, even with regular use in demanding environments. This aspect added to the perceived value and reliability of the interface.

14% of users expressed concerns about durability, often due to personal experiences with wear-related issues or defective units. Some users reported problems with connectors or components becoming loose over time, which affected their confidence in the interface's longevity.

86%
Aesthetic Appeal

84% of users were pleased with the aesthetic appeal of the MOTU M4, appreciating its sleek, understated design that blended well with other studio equipment. Users liked the clean lines and professional appearance, which contributed to a positive perception of the product's quality.

16% of users were less impressed with the aesthetic appeal, feeling that the design was too plain or lacking distinctive features. Some users suggested that more vibrant color options or unique design elements could enhance the interface's visual presence.

84%
Setup Process

80% of users found the setup process for the MOTU M4 straightforward and hassle-free. They appreciated the clear instructions and minimal steps required to get the interface up and running. The straightforward installation of drivers and software contributed to a smooth start for most users.

20% of users encountered challenges during the setup process, often related to driver installation or compatibility with their specific operating systems. Some users reported issues with outdated instructions or the need for manual troubleshooting to resolve initial setup problems.

80%
Connectivity

81% of users were satisfied with the connectivity options of the MOTU M4, highlighting the versatile USB-C connection that provided stable data transfer. Users appreciated the convenience of a single cable for power and data, which simplified their setup and reduced cable clutter.

19% of users had issues with connectivity, primarily related to USB-C compatibility with older systems or the need for adapters. Some users experienced intermittent connection problems, which they attributed to cable quality or port compatibility issues.

81%
Driver Stability

75% of users were pleased with the stability of the drivers provided with the MOTU M4, noting that they facilitated consistent and reliable performance across different applications. Users appreciated the regular updates and support from MOTU to maintain optimal driver functionality.

25% of users experienced driver stability issues, which impacted their usage of the interface. Some reported crashes or glitches during sessions, requiring frequent updates or reinstallations to resolve. Others found the drivers less stable on certain operating systems, leading to frustration.

75%
User Interface

83% of users were satisfied with the user interface of the MOTU M4, praising its intuitive design and easy-to-navigate controls. Users found the interface straightforward, with clearly labeled inputs and outputs that simplified the recording process.

17% of users found the user interface lacking, mainly due to personal preferences or specific workflow needs. Some users desired more customizable options or advanced features that were not available with the current interface design.

83%
Preamp Quality

89% of users were impressed with the preamp quality of the MOTU M4, noting the clean and transparent sound that enhanced their recordings. Users appreciated the low noise floor and ample headroom provided by the preamps, which allowed for detailed and dynamic audio capture.

11% of users were not satisfied with the preamp quality, often citing noise issues or insufficient gain for certain microphones. Some users found that the preamps did not perform as well as those in higher-end interfaces, though they acknowledged the trade-off for the price point.

89%
Firmware Updates

77% of users appreciated the availability of firmware updates for the MOTU M4, which improved functionality and addressed common issues. Users valued the proactive approach taken by MOTU to enhance the interface's performance over time through updates.

23% of users were dissatisfied with the firmware update process, often due to difficulties in installation or lack of clear instructions. Some users experienced problems after updates, such as changes in settings or new bugs, which required further troubleshooting.

77%
Overall Satisfaction

88% of users expressed overall satisfaction with the MOTU M4, praising its performance, build quality, and value. Users felt that it met or exceeded their expectations in most areas, making it a highly recommended choice for those seeking a reliable audio interface.

12% of users were not fully satisfied with their experience, often due to isolated issues with specific features or compatibility. While most found the product to be satisfactory, these users highlighted areas for improvement to enhance the overall user experience.

88%
Metering Accuracy

84% of users were satisfied with the metering accuracy of the MOTU M4, noting the clear and precise visual feedback provided during recording and playback. Users appreciated the detailed meters that allowed for effective monitoring of audio levels.

16% of users encountered issues with metering accuracy, often related to discrepancies between the interface's meters and those in their DAW. Some users found the visual feedback less responsive or precise than expected, impacting their ability to accurately monitor levels.

84%
Output Quality

90% of users were impressed with the output quality of the MOTU M4, highlighting its clear and detailed sound reproduction. Many users noted the high-quality headphone and line outputs, which provided accurate audio representation for mixing and monitoring.

10% of users were not satisfied with the output quality, often due to specific issues with their setup or preferences. Some users experienced faint noise or distortion, which they attributed to external factors or mismatched equipment rather than the interface itself.

90%

Pros:
High-quality preamps with 24-bit/192kHz AD-DA converters. Compact and portable design. Two balanced line inputs for connecting external hardware. Includes MIDI I/O for connecting synths and controllers. Bundled with a comprehensive software package, including Ableton Live Lite. Easy to set up and use, with user-friendly software. Low latency performance.	High-quality audio performance with ESS Sabre32 Ultra DAC technology. Ultra-low latency performance, making it suitable for real-time monitoring. Comprehensive metering with full-color LCD display for precise level monitoring. USB-C connectivity ensures fast data transfer and compatibility with modern devices. Sturdy build quality and compact design, ideal for portable use. Loopback functionality for easy live streaming and podcasting.

Pros:

High-quality preamps with 24-bit/192kHz AD-DA converters.
Compact and portable design.
Two balanced line inputs for connecting external hardware.
Includes MIDI I/O for connecting synths and controllers.
Bundled with a comprehensive software package, including Ableton Live Lite.
Easy to set up and use, with user-friendly software.
Low latency performance.

High-quality audio performance with ESS Sabre32 Ultra DAC technology.
Ultra-low latency performance, making it suitable for real-time monitoring.
Comprehensive metering with full-color LCD display for precise level monitoring.
USB-C connectivity ensures fast data transfer and compatibility with modern devices.
Sturdy build quality and compact design, ideal for portable use.
Loopback functionality for easy live streaming and podcasting.

Cons:
Limited to four inputs and four outputs, which may not be enough for larger setups. Requires a computer with USB connectivity. No built-in DSP for real-time effects processing. Plastic knobs may feel less durable compared to metal ones. No dedicated power supply option; relies entirely on USB power.	Limited to 4 inputs and 4 outputs, which may not be sufficient for larger setups. No built-in DSP effects, which could limit flexibility for some users. Only USB bus-powered, which might not be ideal for all scenarios. No ADAT or S/PDIF connectivity, limiting expansion options.

Key Specs
Channels of I/O
Analog: 4 Input / 4 Output at 192 kHz	Analog: 4 Inputs / 4 Outputs
Maximum Sampling Rate
192 kHz / 24-Bit	192 kHz / 24-Bit
Number of Microphone Inputs
2 Preamps	2 Preamps
Analog Audio I/O
2x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line/Hi-Z Input (Front Panel) 2x 1/4" TRS Balanced Line Input 4x 1/4" TRS Balanced Line Output 1x 1/4" TRS Unbalanced Headphone Output (Front Panel)	2x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line/Hi-Z Input 2x 1/4" TRS Balanced Line Input 1x 1/4" TRS Unbalanced Headphone Output 4x 1/4" TRS Balanced Line Output (DC-Coupled) 4x RCA TS Unbalanced Line Output
Host Connection
1x USB-C	1x USB-C
OS Compatibility
macOS 10.12 or Later Windows 7 or Later	macOS 10.11 or Later Windows 7 or Later 9 or Later
Power Requirements
USB Bus Power	USB Bus Power

The Focusrite Scarlett 4i4 (3rd Generation) and the MOTU M4 USB-C Audio-MIDI Interface are both high-quality audio interfaces, each with distinct features tailored for different user needs.
In terms of channels of I/O, both interfaces offer 4 analog inputs and 4 analog outputs at a maximum sampling rate of 192 kHz / 24-Bit. Both devices are equipped with 2 combo XLR-1/4" TRS balanced/unbalanced mic/line/Hi-Z inputs, allowing for versatile connectivity options for microphones and instruments. Additionally, both units have 2x 1/4" TRS balanced line inputs and 4x 1/4" TRS balanced line outputs. However, the MOTU M4 stands out with additional 4x RCA TS unbalanced line outputs, providing more output options.
Regarding headphone output, both interfaces feature a single 1/4" TRS unbalanced headphone output located on the front panel. This ensures easy access for monitoring purposes.
For host connections, both the Focusrite Scarlett 4i4 and the MOTU M4 utilize USB-C, ensuring fast and reliable data transfer rates.
When it comes to OS compatibility, the Focusrite Scarlett 4i4 supports macOS 10.12 or later and Windows 7 or later, while the MOTU M4 is compatible with macOS 10.11 or later and Windows 7 or later. This slight difference in macOS support might be a consideration for users with older Mac operating systems.
Both interfaces are powered via USB bus power, eliminating the need for an external power supply and making them convenient for mobile setups.
In summary, while both the Focusrite Scarlett 4i4 and the MOTU M4 offer similar basic features, the MOTU M4 provides additional RCA TS unbalanced line outputs, which might be an advantage for users needing more output flexibility. The compatibility with slightly older macOS versions also gives the MOTU M4 a slight edge for users with older Mac systems.

General
Channels of I/O
Analog: 4 Input / 4 Output at 192 kHz	Analog: 4 Inputs / 4 Outputs
Maximum Sampling Rate
192 kHz / 24-Bit	192 kHz / 24-Bit
Number of Microphone Inputs
2 Preamps	2 Preamps
Input Level Adjustment
2x Knob	2x Knob
Expansion Slots

The Focusrite Scarlett 4i4 USB Audio/MIDI Interface (3rd Generation) and the MOTU M4 USB-C Audio-MIDI Interface share several similar features, making them both strong contenders in the audio interface market. Both devices offer an identical number of analog channels, with 4 inputs and 4 outputs each, and a maximum sampling rate of 192 kHz at 24-bit resolution. This ensures high-quality audio recording and playback for both interfaces.
Both the Scarlett 4i4 and the M4 come equipped with 2 microphone preamps, providing sufficient capability for recording vocals and instruments with professional-grade clarity. Additionally, both interfaces allow users to adjust the input levels using 2 dedicated knobs, giving users precise control over their recording levels.
Neither the Focusrite Scarlett 4i4 nor the MOTU M4 include expansion slots, indicating that both interfaces are designed to offer streamlined, compact solutions without the need for additional modular components. This makes them ideal for users seeking a straightforward and efficient audio interface without the complexity of expandable hardware.
In summary, the Focusrite Scarlett 4i4 and the MOTU M4 are closely matched in terms of their key specifications, including channels of I/O, maximum sampling rate, number of microphone inputs, input level adjustment, and the absence of expansion slots.

Signal Processing
Pad
Mic/Line/Hi-Z: -10 dB (Switchable per Channel)
Gain/Trim Range
Inputs: Up to +56 dB	Mic Inputs: 0 dB to +60 dB Line/Hi-Z Inputs: 0 dB to +57 dB
High-Pass Filter

Solo/Mute

The Focusrite Scarlett 4i4 USB Audio/MIDI Interface (3rd Generation) and the MOTU M4 USB-C Audio-MIDI Interface have distinct specifications that cater to different user needs.
In terms of the pad feature, the Scarlett 4i4 offers a switchable -10 dB pad per channel for Mic/Line/Hi-Z inputs, providing flexibility in handling different input signals. Conversely, the MOTU M4 does not offer any pad functionality, which might limit its versatility in managing high-gain sources without distortion.
Regarding gain/trim range, the Scarlett 4i4 supports up to +56 dB for its inputs, which is slightly lower compared to the MOTU M4. The MOTU M4 provides a more extensive gain range, with mic inputs offering 0 dB to +60 dB and line/Hi-Z inputs ranging from 0 dB to +57 dB, making it potentially more adaptable for various recording scenarios that require higher gain levels.
Both interfaces lack a high-pass filter, meaning users will need to manage any low-frequency noise or rumble through external means or post-processing.
Similarly, neither the Scarlett 4i4 nor the MOTU M4 includes solo/mute functionality, which might be a consideration for users who rely on these features for monitoring and recording control.
Overall, while both interfaces offer robust capabilities, the Scarlett 4i4 stands out with its pad feature, whereas the MOTU M4 provides a broader gain range for mic and line/Hi-Z inputs.

Connectivity
Analog Audio I/O
2x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line/Hi-Z Input (Front Panel) 2x 1/4" TRS Balanced Line Input 4x 1/4" TRS Balanced Line Output 1x 1/4" TRS Unbalanced Headphone Output (Front Panel)	2x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line/Hi-Z Input 2x 1/4" TRS Balanced Line Input 1x 1/4" TRS Unbalanced Headphone Output 4x 1/4" TRS Balanced Line Output (DC-Coupled) 4x RCA TS Unbalanced Line Output
Phantom Power
48 V, Selectable On/Off (on 2 Channels)	48 V, Selectable On/Off (Selectable on Individual Inputs)
Digital Audio I/O

Host Connection
1x USB-C	1x USB-C
Host Connection Protocol
USB 2.0	USB 2.0
MIDI I/O
1x DIN 5-Pin Input 1x DIN 5-Pin Output	1x DIN 5-Pin Input 1x DIN 5-Pin Output

The Focusrite Scarlett 4i4 USB Audio/MIDI Interface (3rd Generation) and the MOTU M4 USB-C Audio-MIDI Interface both offer robust audio and MIDI interfacing capabilities, but they differ in several key areas.
In terms of analog audio I/O, both interfaces provide 2 combo XLR-1/4" TRS balanced/unbalanced mic/line/Hi-Z inputs on the front panel. However, the Focusrite Scarlett 4i4 offers 2 additional 1/4" TRS balanced line inputs, while the MOTU M4 offers 4 RCA TS unbalanced line outputs in addition to its 4x 1/4" TRS balanced line outputs. Both units feature a 1/4" TRS unbalanced headphone output, but the MOTU M4's 4x 1/4" TRS line outputs are DC-coupled, which can be advantageous for certain applications.
When it comes to phantom power, both interfaces provide 48V selectable phantom power, but the MOTU M4 allows for this to be selectable on individual inputs, which offers more flexibility compared to the Focusrite Scarlett 4i4's 48V phantom power being selectable on two channels.
Both the Focusrite Scarlett 4i4 and the MOTU M4 connect to the host via a single USB-C connection using the USB 2.0 protocol, ensuring compatibility with modern computer systems. Neither interface includes digital audio I/O or additional USB (non-host), sync I/O, or network I/O capabilities.
For MIDI I/O, both interfaces are equipped with 1x DIN 5-pin MIDI input and 1x DIN 5-pin MIDI output, ensuring they can easily integrate with various MIDI devices.
In summary, while both interfaces offer similar core features, the MOTU M4 provides a slight edge with its individually selectable phantom power, DC-coupled outputs, and additional RCA outputs, making it a more versatile option for certain users. On the other hand, the Focusrite Scarlett 4i4 also stands out with its additional 1/4" TRS balanced line inputs, which might be beneficial depending on the specific needs of the user.

Performance
Frequency Response
Inputs: 20 Hz to 20 kHz ±0.1 dB	Mic Inputs: 20 Hz to 20 kHz +0/-0.1 dB Line, Hi-Z Inputs: 20 Hz to 20 kHz ±0.15 dB Line Inputs: 20 Hz to 20 kHz ±0.07 dB Line Outputs: 20 Hz to 20 kHz +0/-0.1 dB
Maximum Input Level
Mic Inputs: +9 dBu (Min Gain) +16 dBu (Min Gain, with Pad) Hi-Z Inputs: +12.5 dBu (Min Gain) +14 dBu (Min Gain, with Pad) Line Inputs: +22 dBu (Min Gain) +29 dBu (Min Gain, with Pad)	Mic Inputs: +10 dBu (Min Gain) Line/Hi-Z Inputs: +16 dBu (Min Gain) Line Inputs: +18 dBu (Min Gain)
Maximum Output Level
Monitor/Line Outputs: +15.5 dBu at 0 dBFS Headphone Outputs: +7 dBu	Line Outputs: +16 dBu (Balanced) Line Outputs: +9.5 dBu (Unbalanced) Headphone Outputs: +12.5 dBu
Impedance
Mic Inputs: 3 Kilohms Hi-Z Inputs: 1.5 Megohms Line Inputs: 60 Kilohms Line Outputs: 430 Ohms Headphone Outputs: < 1 Ohm	Mic Inputs: 2.65 Kilohms Line Inputs: 2 Megohms Hi-Z Inputs: 1 Megohm Line Outputs: 100 Ohms
Dynamic Range
Mic Inputs: 111 dBA Hi-Z Inputs: 110 dBA Line Inputs: 110.5 dBA Line Outputs: 108 dBA Headphone Outputs: 104 dBA	Mic Inputs: 115 dBA Line/Hi-Z Inputs: 114 dBA Line Inputs: 115 dBA Line/Monitor Outputs: 120 dBA RCA Outputs: 119 dBA Headphone Outputs: 115 dBA
THD+N
Mic Inputs: < 0.0012% Hi-Z Inputs: < 0.03% Line Inputs: < 0.002% Line Outputs: < 0.002% Headphone Outputs: < 0.002%	Mic Inputs: < -97 dB / < 0.0014% Line/Hi-Z Inputs: < -100 dB / < 0.001% Line Inputs: < -106 dB / < 0.0005% Line/Monitor Outputs: < -110 dB / < 0.00032% RCA Outputs: < -105 dB / < 0.00056% Headphone Outputs: < -110 dB / < 0.0003%
EIN
Mic Inputs: -128 dBu A-Weighted	Mic Inputs: -129 dB A-Weighted (150-Ohm Source, Max Gain)

When comparing the Focusrite Scarlett 4i4 USB Audio/MIDI Interface (3rd Generation) to the MOTU M4 USB-C Audio-MIDI Interface, several key features such as frequency response, maximum input/output levels, impedance, dynamic range, Total Harmonic Distortion plus Noise (THD+N), and Equivalent Input Noise (EIN) come into play.
Frequency Response: The Focusrite Scarlett 4i4 offers a frequency response of 20 Hz to 20 kHz ±0.1 dB for its inputs. In comparison, the MOTU M4 has a slightly varied frequency response for different inputs: 20 Hz to 20 kHz +0/-0.1 dB for mic inputs, ±0.15 dB for line and Hi-Z inputs, and ±0.07 dB for line outputs. This indicates that both interfaces offer a flat and wide frequency response, but the MOTU M4 provides slightly tighter control for line outputs.
Maximum Input/Output Levels: The Focusrite Scarlett 4i4 supports a maximum input level for mic inputs at +9 dBu (Min Gain) and +16 dBu (Min Gain, with Pad), while Hi-Z inputs can handle +12.5 dBu (Min Gain) and +14 dBu (Min Gain, with Pad). Line inputs can go up to +22 dBu (Min Gain) and +29 dBu (Min Gain, with Pad). On the output side, monitor/line outputs reach up to +15.5 dBu at 0 dBFS, and headphone outputs can go up to +7 dBu.
The MOTU M4, on the other hand, supports a maximum input level of +10 dBu for mic inputs, +16 dBu for Line/Hi-Z inputs, and +18 dBu for line inputs. Its balanced line outputs can handle +16 dBu, unbalanced line outputs reach +9.5 dBu, and headphone outputs can go up to +12.5 dBu. This suggests that the MOTU M4 may offer slightly higher headroom in some scenarios, particularly for headphone outputs.
Impedance: The Focusrite Scarlett 4i4 features mic input impedance of 3 Kilohms, Hi-Z inputs at 1.5 Megohms, line inputs at 60 Kilohms, line outputs at 430 Ohms, and headphone outputs at less than 1 Ohm. Comparatively, the MOTU M4 provides mic input impedance of 2.65 Kilohms, line inputs at 2 Megohms, Hi-Z inputs at 1 Megohm, and line outputs at 100 Ohms. This indicates a higher input impedance for the MOTU M4 in some cases, which might contribute to better compatibility with a variety of instruments and microphones.
Dynamic Range: For dynamic range, the Focusrite Scarlett 4i4 lists mic inputs at 111 dBA, Hi-Z inputs at 110 dBA, line inputs at 110.5 dBA, line outputs at 108 dBA, and headphone outputs at 104 dBA. The MOTU M4 provides a more extensive dynamic range: mic inputs at 115 dBA, line/Hi-Z inputs at 114 dBA, line inputs at 115 dBA, line/monitor outputs at 120 dBA, RCA outputs at 119 dBA, and headphone outputs at 115 dBA. This suggests that the MOTU M4 offers a broader dynamic range, potentially translating to cleaner audio signals with less noise.
THD+N: The Focusrite Scarlett 4i4 records a THD+N of less than 0.0012% for mic inputs, less than 0.03% for Hi-Z inputs, less than 0.002% for line inputs and outputs, and less than 0.002% for headphone outputs. The MOTU M4 shows even lower THD+N values: mic inputs at less than -97 dB / 0.0014%, line/Hi-Z inputs at less than -100 dB / 0.001%, line inputs at less than -106 dB / 0.0005%, line/monitor outputs at less than -110 dB / 0.00032%, RCA outputs at less than -105 dB / 0.00056%, and headphone outputs at less than -110 dB / 0.0003%. This means the MOTU M4 may provide cleaner outputs with lower distortion across all types of inputs and outputs.
EIN: The Focusrite Scarlett 4i4 features an EIN of -128 dBu A-Weighted for mic inputs, while the MOTU M4 lists an EIN of -129 dB A-Weighted (150-Ohm Source, Max Gain). This slight edge suggests that the MOTU M4 might offer marginally better noise performance for mic inputs.
In summary, both the Focusrite Scarlett 4i4 and MOTU M4 are robust audio interfaces, but the MOTU M4 generally offers a wider dynamic range, lower THD+N, and slightly better EIN, which could contribute to higher overall audio fidelity. The Focusrite Scarlett 4i4, however, provides competitive performance and might be preferred in scenarios where those specific features are less critical.

Digital Audio
Sample Rates
Up to 192 kHz (AD/DA Conversion)	Up to 192 kHz
Sample Rate Conversion

Bit Depths
Up to 24-Bit (AD/DA Conversion)	24-Bit
Sync Sources
Internal	Internal

The Focusrite Scarlett 4i4 USB Audio/MIDI Interface (3rd Generation) and the MOTU M4 USB-C Audio-MIDI Interface both offer high-quality audio performance, each with specific strengths. When it comes to sample rates, both interfaces support up to 192 kHz (AD/DA Conversion), ensuring pristine audio quality that caters to professional recording needs.
In terms of bit depths, both interfaces are capable of handling up to 24-bit audio, which ensures high-resolution audio capture and playback, maintaining the fidelity of the recorded material.
Neither the Focusrite Scarlett 4i4 nor the MOTU M4 offers sample rate conversion, which means that both interfaces rely on the internal sample rate set either by the user or the DAW they are interfacing with.
A standout feature of the MOTU M4 is its zero-latency direct monitoring and a very low latency of 2.5 ms at 96 kHz, which is dependent on buffer size and input to output settings. This can be particularly advantageous for musicians and audio engineers who require real-time monitoring without noticeable delay. The Focusrite Scarlett 4i4, however, does not list specific latency figures in its specifications.
Both interfaces use internal sync sources, which means they rely on their internal clock to manage audio data timing. This is typical for most standalone audio interfaces and should suffice for most recording and playback scenarios unless external sync is required for more complex setups.
In summary, while both the Focusrite Scarlett 4i4 and the MOTU M4 offer comparable high-resolution audio capabilities with sample rates up to 192 kHz and 24-bit depth, the MOTU M4 adds an edge with its zero-latency direct monitoring and specific latency performance metrics, making it an appealing choice for users prioritizing real-time audio monitoring.

Audio Storage & Playback
Memory Card Slot

When comparing the Focusrite Scarlett 4i4 USB Audio/MIDI Interface (3rd Generation) and the MOTU M4 USB-C Audio-MIDI Interface, both units share some similarities while also offering distinct features that cater to different user needs.
Starting with connectivity, neither the Focusrite Scarlett 4i4 nor the MOTU M4 includes a memory card slot, which means users will need to rely on their connected computers or external storage solutions for saving recordings and data. This is a common trait for audio interfaces in this category, focusing more on direct audio processing and less on standalone recording capabilities.
Both interfaces are designed with a strong emphasis on high-quality audio conversion and low latency performance. The Scarlett 4i4 (3rd Gen) by Focusrite provides 4 inputs and 4 outputs, with two of the inputs being high-headroom instrument inputs and two balanced line inputs. The MOTU M4, on the other hand, offers a similar 4-in/4-out configuration but stands out with its ESS Sabre32 Ultra DAC technology, which offers an impressive 120dB dynamic range and ultra-low distortion, providing exceptional audio fidelity.
For MIDI connectivity, both interfaces offer MIDI I/O, making them suitable for integrating with synthesizers, drum machines, and other MIDI gear. This feature is essential for musicians and producers who rely on MIDI instruments and controllers in their workflows.
In terms of build quality and design, both interfaces are robust and portable, ideal for both studio and mobile recording settings. The Scarlett 4i4 features a sleek red metallic finish, which is a trademark of the Scarlett range, whereas the MOTU M4 boasts a solid, professional look with a clear OLED display that provides real-time audio levels and other crucial information.
Ultimately, the choice between the Focusrite Scarlett 4i4 and the MOTU M4 will come down to personal preference and specific needs. The Scarlett 4i4 is known for its reliability and ease of use, making it a great choice for those who prioritize straightforward, high-quality recordings. Meanwhile, the MOTU M4's advanced DAC technology and real-time metering might appeal more to users looking for superior audio performance and detailed monitoring capabilities.

Compatibility
OS Compatibility
macOS 10.12 or Later Windows 7 or Later	macOS 10.11 or Later Windows 7 or Later 9 or Later
Required Hardware
Available USB 2.0 Port USB Cable (Included)	Available USB 2.0 Port USB Cable (Included)
Internet Connection
Required for Software/Driver Download	Required for Software/Driver Download

When comparing the Focusrite Scarlett 4i4 USB Audio/MIDI Interface (3rd Generation) and the MOTU M4 USB-C Audio-MIDI Interface, several key features stand out.
In terms of OS compatibility, the Focusrite Scarlett 4i4 supports macOS 10.12 or later and Windows 7 or later, while the MOTU M4 is compatible with macOS 10.11 or later and Windows 7 or later. Both interfaces require an available USB 2.0 port and include a USB cable, making them accessible for a wide range of computer setups.
The Focusrite Scarlett 4i4 does not offer mobile device compatibility, focusing solely on desktop and laptop use. In contrast, the MOTU M4 also lacks explicit mobile device compatibility, aligning with the Scarlett 4i4 in this regard. Both interfaces require an internet connection for software and driver downloads, ensuring users can access the latest updates and functionalities.
When it comes to hardware requirements, both interfaces need an available USB 2.0 port and come with the necessary USB cable. However, the MOTU M4 provides more detailed processor and RAM requirements: it requires a 1 GHz Intel processor for both Mac and PC, suggesting a minimum of 2 GB RAM with a recommendation of 4 GB for optimal performance. The Focusrite Scarlett 4i4 does not specify processor or RAM requirements, indicating a potentially broader range of compatible systems but leaving users to infer the necessary hardware capabilities.
Overall, both the Focusrite Scarlett 4i4 and the MOTU M4 provide robust compatibility with modern operating systems and include essential hardware accessories. The MOTU M4 offers more specific hardware requirements, which may aid users in ensuring their system meets the interface's needs for optimal performance.

Power
Power Requirements
USB Bus Power	USB Bus Power

The Focusrite Scarlett 4i4 USB Audio/MIDI Interface (3rd Generation) and the MOTU M4 USB-C Audio-MIDI Interface both share the convenience of USB bus power, which means they can draw power directly from the connected computer via the USB port without the need for an external power supply. This feature enhances portability and ease of use, making either interface an excellent choice for mobile recording setups or for musicians and producers who need a streamlined workspace.
The Scarlett 4i4, part of the popular Scarlett series from Focusrite, is known for its high-quality preamps and ease of use. It features two mic/line/instrument inputs and two additional fixed line inputs, providing flexibility for various recording scenarios. It also includes MIDI I/O, enabling the connection of MIDI devices such as keyboards and controllers. With its robust build and reliable performance, the Scarlett 4i4 is a favorite among home studio owners and professionals alike.
On the other hand, the MOTU M4 stands out with its high-resolution audio performance and low-latency operation. It offers four inputs and four outputs, including two mic/line/instrument inputs and two additional line inputs. The M4 also includes MIDI I/O, catering to those who work with MIDI gear. A notable feature of the M4 is its full-color LCD screen, which provides real-time metering for all inputs and outputs, allowing for precise monitoring and adjustments. The interface's USB-C connectivity ensures fast data transfer and compatibility with modern computers.
In summary, both the Focusrite Scarlett 4i4 (3rd Generation) and the MOTU M4 offer USB bus power, ensuring a hassle-free and portable recording experience. The Scarlett 4i4 excels with its renowned preamps and user-friendly design, while the MOTU M4 impresses with its high-resolution audio capabilities and advanced metering features. Both interfaces are well-suited for musicians and producers seeking reliable and flexible audio solutions.

Physical
Anti-Theft Features
Kensington Security Slot	Kensington Security Slot
Dimensions
7.28 x 4.71 x 1.87" / 18.49 x 11.96 x 4.75 cm	8.25 x 4.25 x 1.75" / 20.96 x 10.79 x 4.45 cm (Chassis Only)
Weight
1.4 lb / 0.6 kg	1.6 lb / 0.7 kg

The Focusrite Scarlett 4i4 USB Audio/MIDI Interface (3rd Generation) and the MOTU M4 USB-C Audio-MIDI Interface both come equipped with anti-theft features, specifically a Kensington Security Slot, ensuring that both devices can be securely locked to a stationary object to prevent theft.
In terms of physical dimensions, the Focusrite Scarlett 4i4 measures 7.28 x 4.71 x 1.87 inches (18.49 x 11.96 x 4.75 cm), making it slightly more compact compared to the MOTU M4, which has dimensions of 8.25 x 4.25 x 1.75 inches (20.96 x 10.79 x 4.45 cm) when considering the chassis only. This means the Focusrite Scarlett 4i4 is shorter in length but marginally taller.
Regarding weight, the Focusrite Scarlett 4i4 weighs in at 1.4 lb (0.6 kg), making it a bit lighter than the MOTU M4, which weighs 1.6 lb (0.7 kg). This slight difference in weight might be a consideration for users who prioritize portability and ease of transport.
Overall, both the Focusrite Scarlett 4i4 and the MOTU M4 offer similar anti-theft protection and are relatively compact and lightweight, though the Focusrite Scarlett 4i4 is a bit more portable due to its smaller size and lighter weight.

Packaging Info
Package Weight
1.81 lb	2.15 lb
Box Dimensions (LxWxH)
8.5 x 6.5 x 2.4"	10.6 x 7.3 x 2.8"

The Focusrite Scarlett 4i4 USB Audio/MIDI Interface (3rd Generation) and the MOTU M4 USB-C Audio-MIDI Interface both serve as robust solutions for audio and MIDI interfacing needs, but they differ in their physical characteristics.
The Focusrite Scarlett 4i4 (3rd Generation) has a package weight of 1.81 lb, making it relatively lightweight and portable. The box dimensions are compact, measuring 8.5 x 6.5 x 2.4 inches, which suggests it has a smaller footprint and can be easily accommodated in a variety of studio setups or carried for mobile recording sessions.
On the other hand, the MOTU M4 USB-C Audio-MIDI Interface is slightly heavier with a package weight of 2.15 lb. Its larger box dimensions of 10.6 x 7.3 x 2.8 inches indicate a more substantial build, which might offer additional durability and potentially more space for connectors and controls.
In summary, the Focusrite Scarlett 4i4 is more lightweight and compact, making it easier to transport and fit into smaller spaces. The MOTU M4, while slightly heavier and larger, could provide a more robust physical presence and potentially extra functionality due to its size.