PreSonus Studio 1824c vs Focusrite Scarlett 18i8: Which USB Audio Interface is Right for You?

The Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) and the PreSonus Studio 1824c Rackmount 18x20 USB Type-C Audio/MIDI Interface are both premium audio interfaces designed for professional recording, but they cater to slightly different needs and preferences.
The Focusrite Scarlett 18i8 (3rd Gen) is part of Focusrite's renowned Scarlett range, known for its high-quality preamps and user-friendly design. It features four of Focusrite’s award-winning mic preamps with switchable Air mode to give your recordings a brighter, more open sound. The 18i8 offers a total of 18 inputs and 8 outputs, including four front-panel mic/line/instrument inputs, four additional fixed-line inputs, and eight channels of ADAT input. This makes it a versatile choice for both solo musicians and small bands. It also includes MIDI I/O, making it a comprehensive solution for integrating outboard MIDI gear. The 18i8 supports high-resolution audio up to 24-bit/192kHz, ensuring pristine sound quality. Its compact design makes it equally at home in a project studio or on the road.
On the other hand, the PreSonus Studio 1824c is a rackmount interface designed for more extensive studio setups. It offers a higher input/output count with 18 inputs and 20 outputs, including eight XMAX Class A mic preamps, which are known for their transparent sound quality and high headroom. The 1824c also provides ADAT and S/PDIF digital I/O, making it highly expandable. Additionally, it boasts DC-coupled outputs for sending control voltages to modular synthesizers. The Studio 1824c supports 24-bit/192kHz audio resolution, ensuring detailed and accurate sound reproduction. It also features MIDI I/O and a built-in talkback mic, making it an excellent choice for larger recording sessions and complex studio environments. The rackmount design is ideal for permanent installations in professional studios.
In summary, the Focusrite Scarlett 18i8 (3rd Gen) is an excellent choice for musicians and small studios looking for a portable, high-quality interface with sufficient I/O options and Focusrite’s renowned preamps. The PreSonus Studio 1824c, with its higher I/O count and rackmount design, is better suited for larger, more complex studio setups where expandability and additional features like DC-coupled outputs are crucial. Both interfaces offer excellent audio quality and robust performance, making them standout choices in their respective categories.

Detailed Specifications, Pros, and Cons

Focusrite Scarlett 18i8 USB-C Audio Interface (3rd Generation)

Focusrite Scarlett 18i8 (3rd Generation)

PreSonus Studio 1824c

User Rating Based on Analysis of Reviews
Purchase Value 85% of users were satisfied with the purchase value of the Focusrite Scarlett 18i8 USB-C Audio Interface. They often mentioned that it offers a comprehensive set of features for its price range, making it an excellent investment for both home studios and professional settings. Users appreciated the high-quality preamps and the robust build quality, which they felt justified the cost. 15% of users expressed dissatisfaction with the purchase value, primarily due to the perception that the interface's features were overkill for their needs, or that comparable products were available at a lower price. Some users felt that the price point could have included additional accessories or bundled software. 85% Quality of Materials 90% of users were satisfied with the quality of materials used in the Focusrite Scarlett 18i8. They praised its sturdy construction and durable components, which instilled confidence in the product's longevity. Many users noted that the interface felt solid and professional, with high-quality knobs and connectors. 10% of users were dissatisfied with the quality of materials, citing issues such as the plastic components feeling less premium than expected. A few users reported that certain parts, like the USB-C port, felt fragile or had minor issues after extended use. 90% Ease of Use 88% of users found the Focusrite Scarlett 18i8 easy to use, highlighting its straightforward setup process and intuitive controls. The included software was generally well-received for its user-friendly interface, which allowed even beginners to navigate without much trouble. 12% of users found the interface less user-friendly, particularly when it came to software integration and initial setup. Some users experienced difficulties with driver installation or compatibility issues with certain operating systems, which detracted from their overall experience. 88% Sound Quality 92% of users were highly satisfied with the sound quality of the Focusrite Scarlett 18i8, often noting the clarity and warmth of the audio output. Users commended the preamps for their low noise and high headroom, which made recording a pleasure. 8% of users were dissatisfied with the sound quality, mentioning specific issues like occasional latency or interference. Some users felt that the sound lacked the depth or detail they expected from a higher-end interface. 92% Durability 89% of users were pleased with the durability of the Focusrite Scarlett 18i8, noting that it withstood regular use and transportation without significant wear. The metal casing and solid construction were frequently highlighted as key factors contributing to its longevity. 11% of users expressed concerns over durability, reporting incidents of physical damage or malfunction after a few months of use. Some users experienced wear on the knobs or ports, which affected their confidence in the product's long-term reliability. 89% Customer Support 82% of users were satisfied with Focusrite's customer support, appreciating the responsive and helpful service. Many users reported quick resolutions to their issues, and some highlighted the availability of online resources and tutorials as beneficial. 18% of users were dissatisfied with customer support, citing slow response times or unhelpful interactions. A few users felt that their technical issues were not adequately addressed, which left them frustrated. 82% Design and Aesthetics 91% of users were impressed with the design and aesthetics of the Focusrite Scarlett 18i8. They appreciated its sleek, modern look and compact size, which fit well into various studio setups. The red casing was a frequent highlight for its distinctive appearance. 9% of users were less impressed with the design, finding it too flashy or preferring a more subdued look. Some users mentioned that the layout of controls could be improved for better accessibility. 91% Connectivity Options 87% of users were satisfied with the connectivity options of the Scarlett 18i8, noting the variety of inputs and outputs that allowed for flexible setups. They appreciated the USB-C compatibility, which facilitated fast data transfer and reliable connection. 13% of users were dissatisfied with connectivity, particularly those using older systems without USB-C ports. Some users experienced connectivity issues or desired more digital inputs and outputs for their specific needs. 87% Latency Performance 86% of users were satisfied with the latency performance, noting that the interface handled real-time audio processing effectively. The low latency was especially appreciated during recording sessions, where timing is crucial. 14% of users experienced latency issues, which impacted their recording and mixing processes. These users often had specific setups or systems that were less compatible, leading to unexpected delays. 86% Software Bundles 84% of users were pleased with the software bundles included with the Scarlett 18i8, finding the DAWs and plug-ins useful for enhancing their audio projects. The additional software was seen as a valuable addition that complemented the hardware well. 16% of users were not satisfied with the software bundles, either due to compatibility issues or because the software did not meet their expectations in terms of functionality. Some users preferred other DAWs and felt the bundled options were unnecessary for their workflow. 84% Portability 80% of users praised the portability of the Focusrite Scarlett 18i8, appreciating its compact size and lightweight design, which made it easy to transport between locations. This was particularly useful for mobile recording setups. 20% of users found the interface less portable than expected, often due to the need for additional equipment like power adapters or cables. Some users felt that the device's size was still a bit cumbersome for frequent travel. 80% Compatibility 83% of users were satisfied with the compatibility of the Scarlett 18i8, noting its seamless integration with various DAWs and operating systems. The device's versatility was a key highlight for users with diverse setups. 17% of users reported compatibility issues, particularly with older operating systems or specific DAWs. These users encountered difficulties in getting the device recognized or functioning properly without additional troubleshooting. 83% Input/Output Flexibility 88% of users appreciated the input/output flexibility, which supported a range of recording scenarios from solo artists to small bands. The multiple mic and line inputs were frequently mentioned as a major advantage. 12% of users desired more flexibility, often wishing for additional digital outputs or specific connectivity features to suit their unique studio configurations. Some users found the existing options limiting for more complex setups. 88% Preamplifier Quality 94% of users were highly satisfied with the preamplifier quality, citing the clean, powerful amplification and low noise levels that enhanced their recordings. The preamps were often praised as a standout feature of the interface. 6% of users were less impressed, mentioning that the preamps did not meet their expectations for high-end studio work. A few users found the gain levels inadequate for certain microphones or instruments. 94% Build Quality 92% of users were satisfied with the build quality, highlighting the robust construction and attention to detail in the design. The metal chassis was frequently mentioned as contributing to a sense of durability and reliability. 8% of users found fault with the build quality, noticing minor defects or inconsistencies in assembly. Some users reported issues with the tactile feel of the buttons or knobs, which detracted from their overall impression. 92% Installation Process 87% of users found the installation process straightforward, with clear instructions and minimal setup time required. Many users appreciated the ease with which they could get started with recording. 13% of users encountered difficulties during installation, often due to driver issues or unclear setup instructions. These users found the initial setup more challenging than anticipated, particularly if they were less tech-savvy. 87% Versatility 89% of users were satisfied with the versatility of the Focusrite Scarlett 18i8, noting its adaptability for various recording and production tasks. The multiple input and output options allowed users to experiment with different setups easily. 11% of users found the interface less versatile than expected, often due to missing features they considered essential for their specific projects. Some users desired additional routing options or more advanced control features. 89% Driver Stability 84% of users were pleased with the driver stability, experiencing consistent performance without frequent crashes or glitches. This reliability was crucial for maintaining seamless recording sessions. 16% of users experienced issues with driver stability, encountering occasional crashes or compatibility problems with their systems. These users often needed to seek updates or workarounds to maintain stable operation. 84% Control Features 86% of users appreciated the control features, including the easy-to-use interface and clear labeling, which facilitated smooth operation. The mix control and other features allowed for precise adjustments during recording. 14% of users found the control features lacking, often wishing for more customization options or advanced settings. Some users felt the interface could be more intuitive, especially for complex recording tasks. 86% Overall Satisfaction 90% of users expressed overall satisfaction with the Focusrite Scarlett 18i8, citing a balance of quality, functionality, and value. The interface met or exceeded expectations for a broad range of audio production needs. 10% of users were less satisfied overall, typically due to specific issues with performance or features that did not align with their expectations. These users often sought more specialized solutions to meet their needs. 90%	Purchase Value 85% of users were satisfied with the purchase value of the PreSonus Studio 1824c Audio Interface. They appreciated the reasonable pricing for the range of features offered, including multiple inputs and outputs, high-quality preamps, and robust build quality. Many users mentioned that the interface provides excellent sound quality suitable for both home studios and professional use, making it a good investment for musicians and producers. Some users, making up 15% of the feedback, expressed dissatisfaction with the purchase value, mainly due to the perceived cost in relation to their specific needs or expectations. These users felt that for the price, they expected even more advanced features or a more intuitive setup process, which they found lacking compared to other models in a similar price range. 85% Quality of Materials 90% of users praised the quality of materials used in the PreSonus Studio 1824c. The metal chassis and sturdy knobs were frequently mentioned as indicators of the product's durability and reliability. Users felt confident in the interface's ability to withstand regular use in various studio environments without significant wear or damage. 10% of users were less satisfied with the materials, citing occasional issues with the durability of certain components, like knobs feeling loose or plastic parts feeling less robust compared to the rest of the unit. These users expected more consistency in material quality throughout the device. 90% Audio Quality 92% of users were highly satisfied with the audio quality of the PreSonus Studio 1824c, noting that it delivers clean, clear sound with a noticeable improvement over their previous interfaces. Users highlighted the high-quality preamps and converters, which provided a professional-grade audio experience that enhanced both recording and playback. 8% of users expressed dissatisfaction with the audio quality, often pointing out specific issues like unexpected noise or interference, which they attributed to either the interface itself or potential compatibility issues with their setup. These users expected completely pristine audio performance without any hitches. 92% Ease of Use 80% of users found the PreSonus Studio 1824c easy to use, with intuitive controls and a straightforward setup process that allowed them to quickly integrate it into their existing studio environment. The clear labeling and logical layout of the interface's controls helped facilitate a smooth user experience. 20% of users were unsatisfied with the ease of use, often encountering challenges during the initial setup or while navigating the software interface. These users reported needing to consult additional resources or support to fully understand how to optimize the interface's capabilities, which they found inconvenient. 80% Software Integration 75% of users appreciated the software integration that comes with the PreSonus Studio 1824c, particularly the inclusion of Studio One Artist, which they found to be a powerful DAW that complements the hardware well. Users enjoyed the seamless connection between the interface and their recording software, which enhanced their workflow. 25% of users faced issues with software integration, particularly with compatibility across different operating systems or DAWs. These users experienced difficulties in achieving a stable connection or encountered glitches, which hindered their recording and production processes. 75% Portability 65% of users were satisfied with the portability of the PreSonus Studio 1824c, acknowledging that while it is not the most compact interface, it is still manageable for transport between studio locations. Users appreciated the durable build that facilitated safe travel. 35% of users expressed dissatisfaction with the portability, noting that the interface's size and weight made it less convenient for frequent transport. These users preferred a more compact and lightweight solution for mobile recording needs. 65% Input/Output Options 88% of users were pleased with the input/output options provided by the PreSonus Studio 1824c. They highlighted the versatility offered by multiple mic and line inputs, ADAT connectivity, and MIDI ports, which accommodated various recording setups and instruments. 12% of users were dissatisfied with the input/output options, primarily because they either required additional inputs or outputs not available on this model or experienced issues with specific connections not meeting their expectations for sound quality. 88% Customer Support 70% of users were satisfied with the customer support provided by PreSonus, finding the support team responsive and helpful in resolving their queries. Users appreciated the availability of online resources and community forums as additional support avenues. 30% of users were dissatisfied with customer support, often citing long response times or inadequate solutions provided by the support team. These users expected quicker and more comprehensive assistance to address their technical issues. 70% Durability 85% of users were satisfied with the durability of the PreSonus Studio 1824c, often sharing experiences of the interface withstanding heavy use without any significant issues. The robust construction and quality materials contributed to a long-lasting product that users trusted. 15% of users were dissatisfied with the durability, reporting occasional hardware failures or wear and tear that occurred sooner than expected. These users anticipated a longer lifespan based on the product's initial impression. 85% Compatibility 82% of users were satisfied with the compatibility of the PreSonus Studio 1824c, noting that it worked well with various DAWs and operating systems. The interface's versatility made it a suitable choice for users with diverse technical setups. 18% of users experienced compatibility issues, particularly with specific DAWs or older operating systems. These users faced challenges in achieving a seamless integration, which affected their overall satisfaction with the product. 82% Latency 87% of users were impressed with the low latency performance of the PreSonus Studio 1824c, which enabled real-time monitoring and recording without noticeable delay. Users valued the efficient latency management, which was crucial for professional audio production. 13% of users experienced latency issues, which were particularly problematic during complex recording sessions. These users expected flawless real-time performance and were disappointed when latency affected their workflow. 87% Preamps 90% of users were highly satisfied with the quality of the preamps in the PreSonus Studio 1824c, noting their clarity and lack of noise. The preamps provided a clean signal path, which was particularly beneficial for vocal and instrument recording. 10% of users expressed dissatisfaction with the preamps, citing occasional noise or interference issues that detracted from the sound quality. These users expected a higher standard of audio fidelity from the preamps. 90% Aesthetic Design 78% of users appreciated the aesthetic design of the PreSonus Studio 1824c, finding it visually appealing and suitable for both home and professional studio environments. The modern design and clean lines were frequently highlighted as positive attributes. 22% of users were less impressed with the aesthetic design, feeling that it was somewhat plain or not as stylish as other models on the market. These users valued more distinctive or innovative design elements. 78% Driver Stability 75% of users were satisfied with the driver stability of the PreSonus Studio 1824c, noting that it provided a consistent and reliable connection to their computers. The stable drivers minimized crashes and interruptions during recording sessions. 25% of users faced issues with driver stability, experiencing occasional crashes or the need for frequent updates to maintain functionality. These users were frustrated by the lack of consistent performance from the drivers. 75% Expandability 83% of users were satisfied with the expandability of the PreSonus Studio 1824c, appreciating the ADAT connectivity that allowed for easy expansion of input channels. This feature made it a versatile choice for growing studio setups. 17% of users felt limited by the expandability options, particularly if they required more than what the ADAT connectivity could offer. These users sought greater flexibility in expanding their studio capabilities beyond the provided options. 83% Build Quality 88% of users were impressed with the build quality of the PreSonus Studio 1824c, finding it solid and well-constructed. The attention to detail in the manufacturing process was evident, contributing to a product that felt professional and reliable. 12% of users had concerns about the build quality, mentioning specific issues like loose components or manufacturing defects. These users expected a higher level of quality control to ensure a flawless product. 88% Connectivity 86% of users were satisfied with the connectivity options of the PreSonus Studio 1824c, which provided a range of inputs and outputs to accommodate various equipment and setups. The interface's ability to handle multiple connections simultaneously was a key benefit. 14% of users encountered connectivity issues, often related to specific ports not functioning as expected or incompatibility with certain equipment. These users desired more reliable and versatile connectivity features. 86% Control Software 77% of users found the control software accompanying the PreSonus Studio 1824c to be useful and effective in managing the interface's settings. The software provided a convenient platform for customizing and optimizing audio settings. 23% of users experienced difficulties with the control software, citing a steep learning curve or interface issues that made it challenging to navigate and utilize effectively. These users expected a more user-friendly software experience. 77% Microphone Compatibility 84% of users were satisfied with the microphone compatibility of the PreSonus Studio 1824c, noting that it worked seamlessly with a variety of microphones, including dynamic, condenser, and ribbon types. The interface's ability to handle different mic requirements was a plus. 16% of users faced microphone compatibility issues, often related to specific mic models not performing optimally or requiring additional equipment to function properly. These users sought a more universally compatible solution. 84% Headphone Output Quality 89% of users were pleased with the headphone output quality of the PreSonus Studio 1824c, praising the clarity and volume levels achievable through the headphone outputs. The outputs allowed for detailed monitoring during recording and mixing sessions. 11% of users were dissatisfied with the headphone output quality, experiencing issues like insufficient volume or distortion at higher levels. These users expected a more robust performance from the headphone outputs. 89% Overall User Experience 83% of users reported a positive overall user experience with the PreSonus Studio 1824c, highlighting its reliable performance, quality sound, and user-friendly design as major contributing factors to their satisfaction. The interface met and often exceeded their expectations for a mid-range audio solution. 17% of users had a less favorable overall experience, often due to cumulative minor issues like setup challenges, software quirks, or hardware inconsistencies. These users expected a more polished product experience without the need for troubleshooting. 83% Show More

User Rating Based on Analysis of Reviews

Purchase Value

85% of users were satisfied with the purchase value of the Focusrite Scarlett 18i8 USB-C Audio Interface. They often mentioned that it offers a comprehensive set of features for its price range, making it an excellent investment for both home studios and professional settings. Users appreciated the high-quality preamps and the robust build quality, which they felt justified the cost.

15% of users expressed dissatisfaction with the purchase value, primarily due to the perception that the interface's features were overkill for their needs, or that comparable products were available at a lower price. Some users felt that the price point could have included additional accessories or bundled software.

85%
Quality of Materials

90% of users were satisfied with the quality of materials used in the Focusrite Scarlett 18i8. They praised its sturdy construction and durable components, which instilled confidence in the product's longevity. Many users noted that the interface felt solid and professional, with high-quality knobs and connectors.

10% of users were dissatisfied with the quality of materials, citing issues such as the plastic components feeling less premium than expected. A few users reported that certain parts, like the USB-C port, felt fragile or had minor issues after extended use.

90%
Ease of Use

88% of users found the Focusrite Scarlett 18i8 easy to use, highlighting its straightforward setup process and intuitive controls. The included software was generally well-received for its user-friendly interface, which allowed even beginners to navigate without much trouble.

12% of users found the interface less user-friendly, particularly when it came to software integration and initial setup. Some users experienced difficulties with driver installation or compatibility issues with certain operating systems, which detracted from their overall experience.

88%
Sound Quality

92% of users were highly satisfied with the sound quality of the Focusrite Scarlett 18i8, often noting the clarity and warmth of the audio output. Users commended the preamps for their low noise and high headroom, which made recording a pleasure.

8% of users were dissatisfied with the sound quality, mentioning specific issues like occasional latency or interference. Some users felt that the sound lacked the depth or detail they expected from a higher-end interface.

92%
Durability

89% of users were pleased with the durability of the Focusrite Scarlett 18i8, noting that it withstood regular use and transportation without significant wear. The metal casing and solid construction were frequently highlighted as key factors contributing to its longevity.

11% of users expressed concerns over durability, reporting incidents of physical damage or malfunction after a few months of use. Some users experienced wear on the knobs or ports, which affected their confidence in the product's long-term reliability.

89%
Customer Support

82% of users were satisfied with Focusrite's customer support, appreciating the responsive and helpful service. Many users reported quick resolutions to their issues, and some highlighted the availability of online resources and tutorials as beneficial.

18% of users were dissatisfied with customer support, citing slow response times or unhelpful interactions. A few users felt that their technical issues were not adequately addressed, which left them frustrated.

82%
Design and Aesthetics

91% of users were impressed with the design and aesthetics of the Focusrite Scarlett 18i8. They appreciated its sleek, modern look and compact size, which fit well into various studio setups. The red casing was a frequent highlight for its distinctive appearance.

9% of users were less impressed with the design, finding it too flashy or preferring a more subdued look. Some users mentioned that the layout of controls could be improved for better accessibility.

91%
Connectivity Options

87% of users were satisfied with the connectivity options of the Scarlett 18i8, noting the variety of inputs and outputs that allowed for flexible setups. They appreciated the USB-C compatibility, which facilitated fast data transfer and reliable connection.

13% of users were dissatisfied with connectivity, particularly those using older systems without USB-C ports. Some users experienced connectivity issues or desired more digital inputs and outputs for their specific needs.

87%
Latency Performance

86% of users were satisfied with the latency performance, noting that the interface handled real-time audio processing effectively. The low latency was especially appreciated during recording sessions, where timing is crucial.

14% of users experienced latency issues, which impacted their recording and mixing processes. These users often had specific setups or systems that were less compatible, leading to unexpected delays.

86%
Software Bundles

84% of users were pleased with the software bundles included with the Scarlett 18i8, finding the DAWs and plug-ins useful for enhancing their audio projects. The additional software was seen as a valuable addition that complemented the hardware well.

16% of users were not satisfied with the software bundles, either due to compatibility issues or because the software did not meet their expectations in terms of functionality. Some users preferred other DAWs and felt the bundled options were unnecessary for their workflow.

84%
Portability

80% of users praised the portability of the Focusrite Scarlett 18i8, appreciating its compact size and lightweight design, which made it easy to transport between locations. This was particularly useful for mobile recording setups.

20% of users found the interface less portable than expected, often due to the need for additional equipment like power adapters or cables. Some users felt that the device's size was still a bit cumbersome for frequent travel.

80%
Compatibility

83% of users were satisfied with the compatibility of the Scarlett 18i8, noting its seamless integration with various DAWs and operating systems. The device's versatility was a key highlight for users with diverse setups.

17% of users reported compatibility issues, particularly with older operating systems or specific DAWs. These users encountered difficulties in getting the device recognized or functioning properly without additional troubleshooting.

83%
Input/Output Flexibility

88% of users appreciated the input/output flexibility, which supported a range of recording scenarios from solo artists to small bands. The multiple mic and line inputs were frequently mentioned as a major advantage.

12% of users desired more flexibility, often wishing for additional digital outputs or specific connectivity features to suit their unique studio configurations. Some users found the existing options limiting for more complex setups.

88%
Preamplifier Quality

94% of users were highly satisfied with the preamplifier quality, citing the clean, powerful amplification and low noise levels that enhanced their recordings. The preamps were often praised as a standout feature of the interface.

6% of users were less impressed, mentioning that the preamps did not meet their expectations for high-end studio work. A few users found the gain levels inadequate for certain microphones or instruments.

94%
Build Quality

92% of users were satisfied with the build quality, highlighting the robust construction and attention to detail in the design. The metal chassis was frequently mentioned as contributing to a sense of durability and reliability.

8% of users found fault with the build quality, noticing minor defects or inconsistencies in assembly. Some users reported issues with the tactile feel of the buttons or knobs, which detracted from their overall impression.

92%
Installation Process

87% of users found the installation process straightforward, with clear instructions and minimal setup time required. Many users appreciated the ease with which they could get started with recording.

13% of users encountered difficulties during installation, often due to driver issues or unclear setup instructions. These users found the initial setup more challenging than anticipated, particularly if they were less tech-savvy.

87%
Versatility

89% of users were satisfied with the versatility of the Focusrite Scarlett 18i8, noting its adaptability for various recording and production tasks. The multiple input and output options allowed users to experiment with different setups easily.

11% of users found the interface less versatile than expected, often due to missing features they considered essential for their specific projects. Some users desired additional routing options or more advanced control features.

89%
Driver Stability

84% of users were pleased with the driver stability, experiencing consistent performance without frequent crashes or glitches. This reliability was crucial for maintaining seamless recording sessions.

16% of users experienced issues with driver stability, encountering occasional crashes or compatibility problems with their systems. These users often needed to seek updates or workarounds to maintain stable operation.

84%
Control Features

86% of users appreciated the control features, including the easy-to-use interface and clear labeling, which facilitated smooth operation. The mix control and other features allowed for precise adjustments during recording.

14% of users found the control features lacking, often wishing for more customization options or advanced settings. Some users felt the interface could be more intuitive, especially for complex recording tasks.

86%
Overall Satisfaction

90% of users expressed overall satisfaction with the Focusrite Scarlett 18i8, citing a balance of quality, functionality, and value. The interface met or exceeded expectations for a broad range of audio production needs.

10% of users were less satisfied overall, typically due to specific issues with performance or features that did not align with their expectations. These users often sought more specialized solutions to meet their needs.

90%

Purchase Value

85% of users were satisfied with the purchase value of the PreSonus Studio 1824c Audio Interface. They appreciated the reasonable pricing for the range of features offered, including multiple inputs and outputs, high-quality preamps, and robust build quality. Many users mentioned that the interface provides excellent sound quality suitable for both home studios and professional use, making it a good investment for musicians and producers.

Some users, making up 15% of the feedback, expressed dissatisfaction with the purchase value, mainly due to the perceived cost in relation to their specific needs or expectations. These users felt that for the price, they expected even more advanced features or a more intuitive setup process, which they found lacking compared to other models in a similar price range.

85%
Quality of Materials

90% of users praised the quality of materials used in the PreSonus Studio 1824c. The metal chassis and sturdy knobs were frequently mentioned as indicators of the product's durability and reliability. Users felt confident in the interface's ability to withstand regular use in various studio environments without significant wear or damage.

10% of users were less satisfied with the materials, citing occasional issues with the durability of certain components, like knobs feeling loose or plastic parts feeling less robust compared to the rest of the unit. These users expected more consistency in material quality throughout the device.

90%
Audio Quality

92% of users were highly satisfied with the audio quality of the PreSonus Studio 1824c, noting that it delivers clean, clear sound with a noticeable improvement over their previous interfaces. Users highlighted the high-quality preamps and converters, which provided a professional-grade audio experience that enhanced both recording and playback.

8% of users expressed dissatisfaction with the audio quality, often pointing out specific issues like unexpected noise or interference, which they attributed to either the interface itself or potential compatibility issues with their setup. These users expected completely pristine audio performance without any hitches.

92%
Ease of Use

80% of users found the PreSonus Studio 1824c easy to use, with intuitive controls and a straightforward setup process that allowed them to quickly integrate it into their existing studio environment. The clear labeling and logical layout of the interface's controls helped facilitate a smooth user experience.

20% of users were unsatisfied with the ease of use, often encountering challenges during the initial setup or while navigating the software interface. These users reported needing to consult additional resources or support to fully understand how to optimize the interface's capabilities, which they found inconvenient.

80%
Software Integration

75% of users appreciated the software integration that comes with the PreSonus Studio 1824c, particularly the inclusion of Studio One Artist, which they found to be a powerful DAW that complements the hardware well. Users enjoyed the seamless connection between the interface and their recording software, which enhanced their workflow.

25% of users faced issues with software integration, particularly with compatibility across different operating systems or DAWs. These users experienced difficulties in achieving a stable connection or encountered glitches, which hindered their recording and production processes.

75%
Portability

65% of users were satisfied with the portability of the PreSonus Studio 1824c, acknowledging that while it is not the most compact interface, it is still manageable for transport between studio locations. Users appreciated the durable build that facilitated safe travel.

35% of users expressed dissatisfaction with the portability, noting that the interface's size and weight made it less convenient for frequent transport. These users preferred a more compact and lightweight solution for mobile recording needs.

65%
Input/Output Options

88% of users were pleased with the input/output options provided by the PreSonus Studio 1824c. They highlighted the versatility offered by multiple mic and line inputs, ADAT connectivity, and MIDI ports, which accommodated various recording setups and instruments.

12% of users were dissatisfied with the input/output options, primarily because they either required additional inputs or outputs not available on this model or experienced issues with specific connections not meeting their expectations for sound quality.

88%
Customer Support

70% of users were satisfied with the customer support provided by PreSonus, finding the support team responsive and helpful in resolving their queries. Users appreciated the availability of online resources and community forums as additional support avenues.

30% of users were dissatisfied with customer support, often citing long response times or inadequate solutions provided by the support team. These users expected quicker and more comprehensive assistance to address their technical issues.

70%
Durability

85% of users were satisfied with the durability of the PreSonus Studio 1824c, often sharing experiences of the interface withstanding heavy use without any significant issues. The robust construction and quality materials contributed to a long-lasting product that users trusted.

15% of users were dissatisfied with the durability, reporting occasional hardware failures or wear and tear that occurred sooner than expected. These users anticipated a longer lifespan based on the product's initial impression.

85%
Compatibility

82% of users were satisfied with the compatibility of the PreSonus Studio 1824c, noting that it worked well with various DAWs and operating systems. The interface's versatility made it a suitable choice for users with diverse technical setups.

18% of users experienced compatibility issues, particularly with specific DAWs or older operating systems. These users faced challenges in achieving a seamless integration, which affected their overall satisfaction with the product.

82%
Latency

87% of users were impressed with the low latency performance of the PreSonus Studio 1824c, which enabled real-time monitoring and recording without noticeable delay. Users valued the efficient latency management, which was crucial for professional audio production.

13% of users experienced latency issues, which were particularly problematic during complex recording sessions. These users expected flawless real-time performance and were disappointed when latency affected their workflow.

87%
Preamps

90% of users were highly satisfied with the quality of the preamps in the PreSonus Studio 1824c, noting their clarity and lack of noise. The preamps provided a clean signal path, which was particularly beneficial for vocal and instrument recording.

10% of users expressed dissatisfaction with the preamps, citing occasional noise or interference issues that detracted from the sound quality. These users expected a higher standard of audio fidelity from the preamps.

90%
Aesthetic Design

78% of users appreciated the aesthetic design of the PreSonus Studio 1824c, finding it visually appealing and suitable for both home and professional studio environments. The modern design and clean lines were frequently highlighted as positive attributes.

22% of users were less impressed with the aesthetic design, feeling that it was somewhat plain or not as stylish as other models on the market. These users valued more distinctive or innovative design elements.

78%
Driver Stability

75% of users were satisfied with the driver stability of the PreSonus Studio 1824c, noting that it provided a consistent and reliable connection to their computers. The stable drivers minimized crashes and interruptions during recording sessions.

25% of users faced issues with driver stability, experiencing occasional crashes or the need for frequent updates to maintain functionality. These users were frustrated by the lack of consistent performance from the drivers.

75%
Expandability

83% of users were satisfied with the expandability of the PreSonus Studio 1824c, appreciating the ADAT connectivity that allowed for easy expansion of input channels. This feature made it a versatile choice for growing studio setups.

17% of users felt limited by the expandability options, particularly if they required more than what the ADAT connectivity could offer. These users sought greater flexibility in expanding their studio capabilities beyond the provided options.

83%
Build Quality

88% of users were impressed with the build quality of the PreSonus Studio 1824c, finding it solid and well-constructed. The attention to detail in the manufacturing process was evident, contributing to a product that felt professional and reliable.

12% of users had concerns about the build quality, mentioning specific issues like loose components or manufacturing defects. These users expected a higher level of quality control to ensure a flawless product.

88%
Connectivity

86% of users were satisfied with the connectivity options of the PreSonus Studio 1824c, which provided a range of inputs and outputs to accommodate various equipment and setups. The interface's ability to handle multiple connections simultaneously was a key benefit.

14% of users encountered connectivity issues, often related to specific ports not functioning as expected or incompatibility with certain equipment. These users desired more reliable and versatile connectivity features.

86%
Control Software

77% of users found the control software accompanying the PreSonus Studio 1824c to be useful and effective in managing the interface's settings. The software provided a convenient platform for customizing and optimizing audio settings.

23% of users experienced difficulties with the control software, citing a steep learning curve or interface issues that made it challenging to navigate and utilize effectively. These users expected a more user-friendly software experience.

77%
Microphone Compatibility

84% of users were satisfied with the microphone compatibility of the PreSonus Studio 1824c, noting that it worked seamlessly with a variety of microphones, including dynamic, condenser, and ribbon types. The interface's ability to handle different mic requirements was a plus.

16% of users faced microphone compatibility issues, often related to specific mic models not performing optimally or requiring additional equipment to function properly. These users sought a more universally compatible solution.

84%
Headphone Output Quality

89% of users were pleased with the headphone output quality of the PreSonus Studio 1824c, praising the clarity and volume levels achievable through the headphone outputs. The outputs allowed for detailed monitoring during recording and mixing sessions.

11% of users were dissatisfied with the headphone output quality, experiencing issues like insufficient volume or distortion at higher levels. These users expected a more robust performance from the headphone outputs.

89%
Overall User Experience

83% of users reported a positive overall user experience with the PreSonus Studio 1824c, highlighting its reliable performance, quality sound, and user-friendly design as major contributing factors to their satisfaction. The interface met and often exceeded their expectations for a mid-range audio solution.

17% of users had a less favorable overall experience, often due to cumulative minor issues like setup challenges, software quirks, or hardware inconsistencies. These users expected a more polished product experience without the need for troubleshooting.

83%

Pros:
High-quality preamps with Air mode for enhanced sound. USB-C connectivity for faster data transfer and improved compatibility. Comprehensive input and output options, including four mic/line inputs and four additional line inputs. Includes a suite of software, including Ableton Live Lite and Focusrite Red Plug-in Suite. Solid build quality and portable design.	High-quality audio with up to 24-bit/192 kHz resolution. Comprehensive I/O options, including 18 inputs and 20 outputs. USB Type-C connectivity for faster data transfer and lower latency. Integrated MIDI interface for connecting MIDI devices. Rugged and durable rackmount design. Comes with PreSonus Studio One Artist DAW software.

Cons:
Slightly higher price point compared to other interfaces in its class. Requires external power supply, not bus-powered. Some users report latency issues on older computer systems. No built-in DSP for real-time effects processing.	Might be overkill for beginners or small home studios. Higher price point compared to simpler interfaces. Requires a USB Type-C port, or an adapter if using older USB types. Can be complex to set up for those unfamiliar with advanced audio interfaces.

Key Specs
Channels of I/O
Analog: 8 Input / 6 Output at 192 kHz Digital: 10 Input / 2 Output	Analog: 8 Inputs / 10 Outputs at 192 kHz Digital: 10 Inputs / 10 Outputs at 48 kHz
Maximum Sampling Rate
192 kHz / 24-Bit	192 kHz / 24-Bit
Number of Microphone Inputs
4 Preamps	8 Preamps
Analog Audio I/O
2x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line/Hi-Z Input (Front Panel) 2x Combo XLR-1/4" TRS Balanced Mic/Line Input (Front Panel) 4x 1/4" TRS Balanced Line Input 4x 1/4" TRS Balanced Line Output 2x 1/4" TRS Unbalanced Headphone Output (Front Panel)	2x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line/Hi-Z Input (Front Panel) 6x Combo XLR-1/4" TRS Balanced Mic/Line Input 2x 1/4" TRS Balanced Monitor Output (DC-Coupled) 8x 1/4" TRS Balanced Line Output (DC-Coupled) 2x 1/4" TRS Unbalanced Headphone Output
Digital Audio I/O
1x RCA Coaxial S/PDIF Input 1x RCA Coaxial S/PDIF Output 1x TOSLINK Optical ADAT Input	1x TOSLINK Optical ADAT Input (S/MUX Support) 1x TOSLINK Optical ADAT Output (S/MUX Support) 1x RCA Coaxial S/PDIF Input 1x RCA Coaxial S/PDIF Output
Host Connection
1x USB-C	1x USB-C (Class-Compliant)
OS Compatibility
macOS 10.12 or Later Windows 7 or Later iPadOS	macOS 10.13 or Later (64-Bit Only) Windows 10 (64-Bit Only) 10 or Later 6 or Later
Power Requirements
AC/DC Power Adapter (Included)	AC/DC Power Adapter (Included)

The Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) and the PreSonus Studio 1824c Rackmount 18x20 USB Type-C Audio/MIDI Interface are both highly capable audio interfaces, each with its own set of features catering to different user needs.
The Focusrite Scarlett 18i8 offers 8 analog inputs and 6 analog outputs at 192 kHz, along with 10 digital inputs and 2 digital outputs. It supports a maximum sampling rate of 192 kHz at 24-bit. The interface includes 4 microphone preamps, with 2 combo XLR-1/4" TRS inputs on the front panel that can handle mic/line/Hi-Z signals, and an additional 2 combo XLR-1/4" TRS inputs for mic/line signals. The interface also provides 4x 1/4" TRS balanced line inputs and 4x 1/4" TRS balanced line outputs, along with 2x 1/4" TRS unbalanced headphone outputs on the front panel. For digital audio, it features 1x RCA coaxial S/PDIF input, 1x RCA coaxial S/PDIF output, and 1x TOSLINK optical ADAT input. The host connection is through a USB-C port, and it is compatible with macOS 10.12 or later, Windows 7 or later, and iPadOS. The device is powered by an included AC/DC power adapter.
On the other hand, the PreSonus Studio 1824c provides a more extensive array of inputs and outputs with 8 analog inputs and 10 analog outputs at 192 kHz, and 10 digital inputs and 10 digital outputs at 48 kHz. It also supports a maximum sampling rate of 192 kHz at 24-bit. This interface is equipped with 8 microphone preamps, featuring 2 combo XLR-1/4" TRS inputs on the front panel for mic/line/Hi-Z signals, and 6 combo XLR-1/4" TRS inputs for mic/line signals. Additionally, it offers 2x 1/4" TRS balanced monitor outputs (DC-coupled), 8x 1/4" TRS balanced line outputs (DC-coupled), and 2x 1/4" TRS unbalanced headphone outputs. The digital audio I/O includes 1x TOSLINK optical ADAT input with S/MUX support, 1x TOSLINK optical ADAT output with S/MUX support, and 1x RCA coaxial S/PDIF input and output. The host connection also utilizes a USB-C port, with OS compatibility extending to macOS 10.13 or later (64-bit only) and Windows 10 (64-bit only). Like the Focusrite, the PreSonus interface is powered by an included AC/DC power adapter.
In summary, both interfaces provide high-quality audio I/O options and robust digital connectivity. The Focusrite Scarlett 18i8 is more compact and offers fewer microphone inputs and analog outputs, making it suitable for smaller setups. The PreSonus Studio 1824c, with its additional microphone preamps and extensive I/O options, is better suited for more complex recording environments demanding higher input and output flexibility.

General
Channels of I/O
Analog: 8 Input / 6 Output at 192 kHz Digital: 10 Input / 2 Output	Analog: 8 Inputs / 10 Outputs at 192 kHz Digital: 10 Inputs / 10 Outputs at 48 kHz
Maximum Sampling Rate
192 kHz / 24-Bit	192 kHz / 24-Bit
Number of Microphone Inputs
4 Preamps	8 Preamps
Input Level Adjustment
4x Knob	8x Knob
Expansion Slots

The Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) and the PreSonus Studio 1824c Rackmount 18x20 USB Type-C Audio/MIDI Interface offer distinct specifications that cater to different needs.
In terms of Channels of I/O, the Scarlett 18i8 provides 8 analog inputs and 6 analog outputs at a maximum sampling rate of 192 kHz, alongside 10 digital inputs and 2 digital outputs. In contrast, the PreSonus Studio 1824c offers 8 analog inputs and 10 analog outputs at the same 192 kHz sampling rate, with an additional 10 digital inputs and 10 digital outputs at 48 kHz. This gives the PreSonus interface a broader range of digital output capabilities.
When it comes to Maximum Sampling Rate, both interfaces support up to 192 kHz / 24-bit, ensuring high-resolution audio recording and playback.
The Number of Microphone Inputs is another critical differentiator. The Scarlett 18i8 includes 4 preamp-equipped microphone inputs, whereas the PreSonus Studio 1824c features 8 preamp-equipped microphone inputs, offering more flexibility for users needing to record multiple microphones simultaneously.
For Input Level Adjustment, the Scarlett 18i8 provides 4 adjustment knobs, matching its number of microphone inputs. The PreSonus Studio 1824c, with its 8 microphone inputs, provides 8 input level adjustment knobs, allowing for precise control over each input channel.
Neither interface includes Built-In DSP or Built-In Microphones, and both lack Expansion Slots, making them comparable in these aspects.
Overall, while both interfaces share similarities in maximum sampling rate and lack of built-in DSP or expansion slots, the PreSonus Studio 1824c stands out with its greater number of microphone inputs and broader digital output capabilities, making it more suitable for users requiring extensive input and output options. The Focusrite Scarlett 18i8, with fewer microphone inputs and slightly fewer output options, may be better suited for smaller setups or users with less demanding requirements.

Signal Processing
Pad
Mic/Line/Hi-Z: -10 dB (Switchable per Channel)
Gain/Trim Range
Mic/Line/Hi-Z Inputs: Up to +56 dB	Mic Inputs: 80 dB Line Inputs: 40 dB Hi-Z Inputs: 80 dB
High-Pass Filter

Solo/Mute
	Mute per Master

The Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) offers a pad feature for Mic/Line/Hi-Z inputs with a -10 dB switchable per channel. It has a gain/trim range for Mic/Line/Hi-Z inputs of up to +56 dB. However, it does not include a high-pass filter or solo/mute functionality.
In contrast, the PreSonus Studio 1824c Rackmount 18x20 USB Type-C Audio/MIDI Interface does not feature a pad. It has a more extensive gain/trim range, with mic inputs offering up to 80 dB, line inputs up to 40 dB, and Hi-Z inputs also up to 80 dB. Similar to the Scarlett 18i8, it does not have a high-pass filter. However, it does include a mute function per master channel.
In summary, the Focusrite Scarlett 18i8 offers a pad function and a moderate gain range, but lacks high-pass filter and solo/mute functionality. The PreSonus Studio 1824c lacks a pad but compensates with a higher gain/trim range and a master mute function. Both units do not feature a high-pass filter.

Connectivity
Analog Audio I/O
2x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line/Hi-Z Input (Front Panel) 2x Combo XLR-1/4" TRS Balanced Mic/Line Input (Front Panel) 4x 1/4" TRS Balanced Line Input 4x 1/4" TRS Balanced Line Output 2x 1/4" TRS Unbalanced Headphone Output (Front Panel)	2x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line/Hi-Z Input (Front Panel) 6x Combo XLR-1/4" TRS Balanced Mic/Line Input 2x 1/4" TRS Balanced Monitor Output (DC-Coupled) 8x 1/4" TRS Balanced Line Output (DC-Coupled) 2x 1/4" TRS Unbalanced Headphone Output
Phantom Power
48 V, Selectable On/Off (on 4 Channels)	48 V, Selectable On/Off (Applied to All Inputs)
Digital Audio I/O
1x RCA Coaxial S/PDIF Input 1x RCA Coaxial S/PDIF Output 1x TOSLINK Optical ADAT Input	1x TOSLINK Optical ADAT Input (S/MUX Support) 1x TOSLINK Optical ADAT Output (S/MUX Support) 1x RCA Coaxial S/PDIF Input 1x RCA Coaxial S/PDIF Output
Host Connection
1x USB-C	1x USB-C (Class-Compliant)
Host Connection Protocol
USB 2.0	USB 2.0
USB (Non-Host)

Sync I/O
	1x BNC Word Clock Output
Network I/O

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 18i8 USB-C Audio/MIDI Interface (3rd Generation) and the PreSonus Studio 1824c Rackmount 18x20 USB Type-C Audio/MIDI Interface are both high-quality audio interfaces, but they cater to slightly different needs in terms of input/output capabilities and additional features.
In terms of analog audio I/O, the Focusrite Scarlett 18i8 offers a total of four combination XLR-1/4" TRS inputs on the front panel, with two dedicated to mic/line/Hi-Z sources and two solely for mic/line inputs. Additionally, it provides four 1/4" TRS balanced line inputs and four 1/4" TRS balanced line outputs, along with two front-panel 1/4" TRS unbalanced headphone outputs. On the other hand, the PreSonus Studio 1824c features a more extensive array of inputs and outputs, including two front-panel combo XLR-1/4" TRS mic/line/Hi-Z inputs, six rear combo XLR-1/4" TRS mic/line inputs, eight 1/4" TRS balanced line outputs, and two 1/4" TRS balanced monitor outputs (DC-coupled), plus two 1/4" TRS unbalanced headphone outputs.
Both interfaces provide phantom power, with the Focusrite Scarlett 18i8 offering selectable 48V phantom power on four channels, whereas the PreSonus Studio 1824c applies 48V phantom power to all its inputs, with a current capacity of over 10 mA per channel.
Regarding digital audio I/O, the Focusrite Scarlett 18i8 is equipped with one RCA coaxial S/PDIF input and one S/PDIF output, along with a TOSLINK optical ADAT input. Conversely, the PreSonus Studio 1824c enhances its digital capabilities by including both TOSLINK optical ADAT input and output (with S/MUX support), as well as RCA coaxial S/PDIF input and output.
Host connection for both interfaces is via USB-C with USB 2.0 protocol, ensuring compatibility with a wide range of devices. However, the PreSonus Studio 1824c adds a BNC word clock output for synchronization purposes, a feature not present in the Focusrite Scarlett 18i8.
In terms of MIDI I/O, both interfaces offer one DIN 5-pin MIDI input and one DIN 5-pin MIDI output, making them suitable for users who need to integrate MIDI devices into their recording setups.
Overall, the Focusrite Scarlett 18i8 is a robust option with essential input/output capabilities and phantom power on four channels, making it suitable for smaller studio setups. The PreSonus Studio 1824c, with its additional inputs, outputs, and synchronization capabilities, caters to more extensive setups and professional environments requiring greater flexibility and connectivity options.

Performance
Frequency Response
20 Hz to 20 kHz ±0.1 dB	Mic, Line Inputs: 20 Hz to 20 kHz (Unity Gain) Hi-Z Inputs: 20 Hz to 20 kHz (Min Gain) Monitor Outputs: 20 Hz to 20 kHz (Unity Gain) Line Outputs: 20 Hz to 20 kHz Headphone Outputs: 20 Hz to 20 kHz (Unity Gain)
Maximum Input Level
Mic Inputs: +9 dBu (Min Gain) Hi-Z Inputs: +12.5 dBu (Min Gain) Line Inputs: +22 dBu (Min Gain)	Mic Inputs: +16 dBu (Balanced, Min Gain) Line Inputs: +21 dBu (Balanced, Min Gain) Hi-Z Inputs: +15 dBu (Unbalanced, Min Gain)
Maximum Output Level
Line Outputs: +15.5 dBu at 0 dBFS (Balanced) Headphone Outputs: +7 dBu	Line/Monitor Outputs: +18 dBu (Balanced)
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: 1.4 Kilohms Line Inputs: 10 Kilohms Hi-Z Inputs: 1 Megohm Headphone Outputs: 32 to 600 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	AD/DA Converters: 114 dB Mic Inputs: 110 dBA (Min Gain) Line/Hi-Z Inputs: 112 dBA (Min Gain) Monitor Outputs: 108 dBA Line Outputs: 108 dBA Headphone Outputs: 103 dBA (1 kHz)
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: 0.005% (1 kHz, Unity Gain) Line Inputs: 0.005% (1 kHz, Min Gain) Hi-Z Inputs: 0.02% (1 kHz, Min Gain) Monitor Outputs: 0.004% (1 kHz, Unity Gain, at -1 dBFS) Line Outputs: 0.004% (1 kHz, Unity Gain, at -1 dBFS) Headphone Outputs: 0.25% (1 kHz, Unity Gain)
EIN
Mic Inputs: -128 dB A-Weighted	Mic Inputs: -128 dBu A-Weighted (150-Ohm Source, Max Gain)

The Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) and the PreSonus Studio 1824c Rackmount 18x20 USB Type-C Audio/MIDI Interface have several distinct features that set them apart in terms of audio performance, input/output capabilities, and overall design.
In terms of frequency response, both interfaces deliver a range of 20 Hz to 20 kHz. The Focusrite Scarlett 18i8 maintains a frequency response of ±0.1 dB, whereas the PreSonus Studio 1824c offers a frequency response across its mic, line, Hi-Z, monitor, and headphone outputs without specifying the tolerance level.
For maximum input levels, the Focusrite Scarlett 18i8 provides +9 dBu for mic inputs, +12.5 dBu for Hi-Z inputs, and +22 dBu for line inputs (all at minimum gain). In contrast, the PreSonus Studio 1824c offers higher maximum input levels: +16 dBu for mic inputs, +21 dBu for line inputs, and +15 dBu for Hi-Z inputs (all at minimum gain).
Regarding maximum output levels, the Focusrite Scarlett 18i8 delivers +15.5 dBu at 0 dBFS for line outputs (balanced) and +7 dBu for headphone outputs. The PreSonus Studio 1824c, however, offers +18 dBu for line/monitor outputs (balanced) and 150 mW per channel into 60 Ohms for headphone output power.
In terms of impedance, the Focusrite Scarlett 18i8 features 3 Kilohms for mic inputs, 1.5 Megohms for Hi-Z inputs, 60 Kilohms for line inputs, 430 Ohms for line outputs, and less than 1 Ohm for headphone outputs. The PreSonus Studio 1824c has 1.4 Kilohms for mic inputs, 10 Kilohms for line inputs, 1 Megohm for Hi-Z inputs, and supports headphone outputs with an impedance range of 32 to 600 Ohms.
When comparing dynamic range, the Focusrite Scarlett 18i8 offers 111 dBA for mic inputs, 110 dBA for Hi-Z inputs, 110.5 dBA for line inputs, 108 dBA for line outputs, and 104 dBA for headphone outputs. The PreSonus Studio 1824c provides a dynamic range of 114 dB for AD/DA converters, 110 dBA for mic inputs, 112 dBA for line/Hi-Z inputs, 108 dBA for monitor outputs, 108 dBA for line outputs, and 103 dBA for headphone outputs.
In terms of Total Harmonic Distortion plus Noise (THD+N), the Focusrite Scarlett 18i8 achieves less than 0.0012% for mic inputs, less than 0.03% for Hi-Z inputs, less than 0.002% for line inputs, less than 0.002% for line outputs, and less than 0.002% for headphone outputs. The PreSonus Studio 1824c displays a THD+N of 0.005% for mic and line inputs, 0.02% for Hi-Z inputs, 0.004% for monitor and line outputs, and 0.25% for headphone outputs.
Finally, the Equivalent Input Noise (EIN) for mic inputs is -128 dB A-weighted for the Focusrite Scarlett 18i8 and -128 dBu A-weighted (with a 150-Ohm source at max gain) for the PreSonus Studio 1824c.

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

Bit Depths
Up to 24-Bit (AD/DA Conversion)	Up to 24-Bit (AD/DA Conversion)
Sync Sources
ADAT, Internal, S/PDIF	ADAT, Internal, S/PDIF

The Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) and the PreSonus Studio 1824c Rackmount 18x20 USB Type-C Audio/MIDI Interface are both high-quality devices tailored for professional audio recording and production. Both interfaces are designed to offer superior audio performance with similar technical specifications.
In terms of sample rates, both the Focusrite Scarlett 18i8 and the PreSonus Studio 1824c support up to 192 kHz for analog-to-digital (AD) and digital-to-analog (DA) conversion. This high sample rate capability ensures that both interfaces can handle studio-grade recordings with high precision and clarity.
Neither the Focusrite Scarlett 18i8 nor the PreSonus Studio 1824c offer sample rate conversion. They both rely on maintaining the integrity of the original sample rates during AD/DA conversion, which is critical for preserving the quality of audio recordings during the production process.
Both interfaces support bit depths of up to 24-bit for AD/DA conversion. This bit depth is standard for professional audio interfaces and provides a wide dynamic range and low noise floor, which are crucial for high-fidelity audio capture and playback.
Regarding sync sources, both the Focusrite Scarlett 18i8 and the PreSonus Studio 1824c are equipped with ADAT, Internal, and S/PDIF synchronization options. This allows each interface to integrate seamlessly into complex studio setups, providing reliable timing and synchronization for multi-device configurations.
In summary, the Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) and the PreSonus Studio 1824c Rackmount 18x20 USB Type-C Audio/MIDI Interface share very similar specifications, including support for up to 192 kHz sample rates, 24-bit depth, and multiple sync sources (ADAT, Internal, S/PDIF). Both interfaces are well-suited for professional audio production environments, offering high-quality audio performance and versatile connectivity options.

Audio Storage & Playback
Memory Card Slot

When comparing the Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) and the PreSonus Studio 1824c Rackmount 18x20 USB Type-C Audio/MIDI Interface, it is important to note their features and specifications, including the presence or absence of a memory card slot.
The Focusrite Scarlett 18i8 (3rd Generation) is designed as a compact desktop unit, ideal for home studios and mobile recording. It offers high-quality audio performance with four mic preamps, allowing for detailed and clear recordings. The interface includes multiple inputs and outputs, making it versatile for various recording setups. However, it does not include a memory card slot, which means users will need to rely on connected computers or external storage devices for saving their recordings.
On the other hand, the PreSonus Studio 1824c is a rackmount unit, making it suitable for more permanent studio installations. It features a higher input and output count with 18 inputs and 20 outputs, providing extensive connectivity options for larger setups. Like the Focusrite Scarlett 18i8, the PreSonus Studio 1824c also does not feature a memory card slot, which similarly necessitates the use of connected computers or external storage for recording purposes.
In summary, both the Focusrite Scarlett 18i8 (3rd Generation) and the PreSonus Studio 1824c lack a memory card slot. The Scarlett 18i8 is more suited for smaller, portable setups, while the Studio 1824c offers greater connectivity for larger, fixed studio environments.

Compatibility
OS Compatibility
macOS 10.12 or Later Windows 7 or Later iPadOS	macOS 10.13 or Later (64-Bit Only) Windows 10 (64-Bit Only) 10 or Later 6 or Later
Mobile Device Compatibility
	iPad Pro iPad Air iPad Air 2 iPad Mini with Retina iPad Mini 4 iPad 4th Gen. Android Smartphone Android Tablet
Required Hardware
Available USB 2.0 Port USB Cable (Included)	USB Cable (Included) Available USB 2.0 Port or USB-C Port
Internet Connection
Required for Software/Driver Download	Required for Registration, Software/Driver Download

The Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) and the PreSonus Studio 1824c Rackmount 18x20 USB Type-C Audio/MIDI Interface cater to different user needs with distinct OS compatibility and hardware requirements.
The Focusrite Scarlett 18i8 (3rd Generation) is compatible with macOS 10.12 or later and Windows 7 or later, making it accessible to users with slightly older operating systems. However, it does not support mobile device compatibility directly, though it is compatible with iPadOS through third-party apps. Essential hardware includes an available USB 2.0 port and the included USB cable. Additionally, an internet connection is required for software and driver downloads.
On the other hand, the PreSonus Studio 1824c requires macOS 10.13 or later (64-bit only) and Windows 10 (64-bit only), thus limiting its usability to more recent operating systems. It supports a broader range of mobile devices, including various iPad models and Android smartphones and tablets. The hardware requirements are similar, needing an available USB 2.0 or USB-C port and the included USB cable. Internet connection is necessary for registration and software or driver downloads. Furthermore, the PreSonus Studio 1824c specifies processor requirements (Intel Core i3 for both Mac and PC, or AMD for PC), RAM requirements of 4 GB (8 GB recommended), storage requirements of 32 GB, and a minimum display resolution of 1366 x 768.
In summary, the Focusrite Scarlett 18i8 offers broader OS compatibility with older systems and simpler hardware requirements, while the PreSonus Studio 1824c supports a wider range of mobile devices and has more specific hardware and system requirements, catering to users with newer systems and higher performance needs.

Power
Power Requirements
AC/DC Power Adapter (Included)	AC/DC Power Adapter (Included)
AC/DC Power Adapter
12 VDC at 1 A, Center-Positive (Included)	12 V, Center-Positive (Included)

The Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) and the PreSonus Studio 1824c Rackmount 18x20 USB Type-C Audio/MIDI Interface have some similarities and differences in their power requirements.
For the Focusrite Scarlett 18i8, the power specifications include an AC/DC power adapter that is included with the unit. This adapter provides 12 VDC at 1 A with a center-positive polarity.
On the other hand, the PreSonus Studio 1824c also includes an AC/DC power adapter. However, its specifications are slightly different, with the adapter providing 12 V also with a center-positive polarity but without specifying the current rating. Additionally, the PreSonus interface includes a rail voltage for the preamp listed at +30 V.
Both units require an external power source and come with the necessary adapters, ensuring they can be powered adequately for their tasks. The main distinction lies in the rail voltage specification provided for the PreSonus unit, which might influence its preamp performance, though both devices use a 12 V, center-positive power adapter for general operation.

Physical
Dimensions
9.49 x 6.28 x 2.4" / 24.1 x 15.95 x 6.1 cm	19 x 5.5 x 1.75" / 482.6 x 139.7 x 44.45 mm

The Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) and the PreSonus Studio 1824c Rackmount 18x20 USB Type-C Audio/MIDI Interface both cater to professional audio recording and production, but they differ in several key aspects.
The Focusrite Scarlett 18i8 (3rd Generation) features a Kensington Security Slot as its anti-theft measure. Its dimensions are 9.49 x 6.28 x 2.4 inches (24.1 x 15.95 x 6.1 cm), making it relatively compact and suitable for desktop use. This interface is designed with portability and ease of use in mind, which can be beneficial for musicians and producers who often work in different locations.
On the other hand, the PreSonus Studio 1824c is a rackmount unit, sized at 1 RU with included hardware. Its dimensions are 19 x 5.5 x 1.75 inches (482.6 x 139.7 x 44.45 mm), and it weighs 4.8 lb (2.2 kg). This makes it more suitable for permanent installation in a studio rack setup, providing a more stable and professional environment for extensive recording sessions.
In summary, the Focusrite Scarlett 18i8 offers a more compact and portable solution with anti-theft security for mobile use, while the PreSonus Studio 1824c is designed for a fixed studio environment with rackmount capabilities. The choice between the two would depend on whether the user prioritizes portability or a more permanent studio installation.

Packaging Info
Package Weight
4.7 lb	6.91 lb
Box Dimensions (LxWxH)
12.6 x 10.5 x 3.4"	24.5 x 9.4 x 0.3"

The Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) and the PreSonus Studio 1824c Rackmount 18x20 USB Type-C Audio/MIDI Interface differ notably in their physical specifications, which can influence user preferences based on portability and installation needs.
The Focusrite Scarlett 18i8 3rd Generation has a package weight of 4.7 pounds and box dimensions of 12.6 x 10.5 x 3.4 inches. This relatively compact and lightweight design makes the Scarlett 18i8 a practical choice for musicians and producers who require a portable solution that is easy to transport and set up in various environments. Its smaller size enables it to fit comfortably on a desktop, making it ideal for home studios or mobile recording setups.
In contrast, the PreSonus Studio 1824c Rackmount Interface weighs significantly more, with a package weight of 6.91 pounds. Its box dimensions are 24.5 x 9.4 x 0.3 inches, indicating a longer and narrower profile. The rackmount design of the Studio 1824c is tailored for integration into professional studio environments where it can be mounted in a standard 19-inch rack. This design is suitable for users who prefer a more permanent installation with easy access to a wide array of inputs and outputs.
Overall, the Focusrite Scarlett 18i8 3rd Generation is designed with portability and convenience in mind, catering to those who need a versatile, easy-to-carry interface. Meanwhile, the PreSonus Studio 1824c is built for robust, professional studio setups where rackmount capability and a heavier, more stable unit are advantageous.