Focusrite Clarett+ 8Pre vs Scarlett 18i8: Which Interface is Right for You?

Focusrite Clarett+ 8Pre vs Scarlett 18i8: Which Interface is Right for You?

The Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface are both high-quality audio interfaces designed to meet the needs of musicians, producers, and audio engineers, but they cater to slightly different requirements and budgets.
The Scarlett 18i8 is part of Focusrite’s popular Scarlett series, known for its reliability and excellent value. It features four mic preamps, four line inputs, and ADAT expandability, allowing users to add up to eight additional channels. The interface supports sample rates up to 192kHz and offers USB-C connectivity, ensuring fast and stable data transfer. It also includes MIDI I/O, making it versatile for connecting various MIDI devices. The 18i8 is ideal for small to mid-sized home studios, offering a compact form factor and user-friendly controls. Its high-performance converters provide clear and detailed sound, making it suitable for both recording and playback.
On the other hand, the Clarett+ 8Pre is a more advanced model, falling under Focusrite’s Clarett+ series, known for even higher audio fidelity and professional features. This rackmount unit provides eight mic preamps and a total of 18 inputs and 20 outputs, offering greater flexibility for larger recording projects and complex setups. The Clarett+ 8Pre also features improved A/D and D/A conversion, with a dynamic range of 124dB, delivering pristine audio quality. The Air mode, which emulates the sound of Focusrite's classic ISA preamps, adds a touch of analog warmth to recordings. With USB Type-C connectivity, it ensures low latency and high-speed performance. Additionally, the Clarett+ 8Pre includes comprehensive software packages and integration with Focusrite’s Control software for advanced routing and monitoring capabilities.
While both interfaces offer robust performance, the Scarlett 18i8 is geared more towards users looking for a high-quality, cost-effective solution for smaller setups. In contrast, the Clarett+ 8Pre is designed for professionals who require more inputs, superior audio quality, and additional features for larger and more demanding recording environments.

Detailed Specifications, Pros, and Cons of Focusrite Clarett+ 8Pre and Scarlett 18i8

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 expressed satisfaction with the purchase value of the Focusrite Clarett+ 8Pre Audio Interface. They found the interface to offer excellent performance for its price range, providing a good balance between features and cost. Many users appreciated the high-quality preamps and the overall build quality, considering it a worthy investment for both home studios and professional setups.

    15% of users felt that the purchase value was not up to par. They cited the relatively high price point compared to entry-level interfaces, and some expected more features or greater flexibility in connectivity options for the cost. These users felt that while the quality was good, the price might not justify the incremental benefits over cheaper alternatives.

    85%
  • Quality of Materials

    90% of users praised the quality of materials used in the Focusrite Clarett+ 8Pre. They were impressed by the robust construction and the premium feel of the knobs and switches. The metal chassis was particularly noted for its durability, giving users confidence that the product would endure rigorous use over time.

    10% of users were less impressed with the materials, remarking that while the exterior was solid, some internal components felt less durable over extended use. A few users experienced minor issues with jacks or knobs becoming loose, which led them to question the long-term reliability of the interface.

    90%
  • Sound Quality

    95% of users were highly satisfied with the sound quality delivered by the Focusrite Clarett+ 8Pre. They noted the clarity and low noise floor of the preamps, which provided a pristine audio signal suitable for professional recordings. The interface was frequently praised for its ability to capture subtle nuances in sound, making it a preferred choice for musicians and producers seeking high-fidelity audio.

    5% of users expressed dissatisfaction with the sound quality, mentioning that while it was generally good, it did not significantly surpass their previous setups. A few users with very specific requirements or preferences felt that the sound was not as warm or colored as they had hoped, indicating a desire for more tonal character.

    95%
  • Ease of Use

    80% of users found the Focusrite Clarett+ 8Pre easy to use, highlighting the intuitive layout and straightforward setup process. The accompanying software was described as user-friendly, and the interface's controls were considered logically arranged, making it accessible even for those new to audio production.

    20% of users encountered difficulties with ease of use, primarily due to software installation issues or compatibility problems with certain operating systems. Some users found the initial setup process cumbersome, especially those who were less technically inclined, leading to frustration when integrating the interface with their existing workflows.

    80%
  • Connectivity Options

    75% of users were satisfied with the connectivity options provided by the Focusrite Clarett+ 8Pre. They appreciated the range of inputs and outputs, including ADAT expandability, which allowed for versatile configurations in various studio environments. The inclusion of both USB-C and Thunderbolt was particularly noted as a positive feature.

    25% of users wished for more extensive connectivity options, feeling that the interface could benefit from additional digital or analog outputs. Some users expressed disappointment that the interface did not include MIDI connectivity or more flexible routing options, limiting its use in more complex setups.

    75%
  • Durability

    88% of users praised the durability of the Focusrite Clarett+ 8Pre, commending its sturdy build and resilient design. The metal casing was often highlighted as a key feature that protected the internal components, making it suitable for mobile recording setups as well as stationary studio use.

    12% of users had concerns about the durability, particularly regarding the longevity of certain components like the input jacks and buttons. Some reported wear and tear after prolonged use, which raised doubts about the product's ability to withstand heavy-duty applications over several years.

    88%
  • Customer Support

    70% of users were satisfied with the customer support provided by Focusrite for the Clarett+ 8Pre. They reported timely responses and helpful solutions from the support team, which helped resolve technical queries and issues efficiently.

    30% of users were dissatisfied with customer support, citing slow response times or inadequate solutions to their problems. Some users felt that the support team lacked the technical knowledge to address more complex issues, leading to frustration and unresolved concerns.

    70%
  • Software Integration

    78% of users found the software integration for the Clarett+ 8Pre to be seamless, particularly appreciating the Focusrite Control software, which allowed for easy management of routing and settings. Users enjoyed the compatibility with major DAWs, which facilitated smooth workflow integration.

    22% of users experienced issues with software integration, predominantly due to compatibility problems with less common DAWs or operating systems. Some users reported bugs or glitches that affected the stability of their recording sessions, which detracted from the overall user experience.

    78%
  • Preamp Quality

    92% of users were highly satisfied with the preamp quality of the Focusrite Clarett+ 8Pre. They noted the clean, transparent sound and the low noise floor, which enhanced the clarity of recordings and provided ample headroom for various audio sources.

    8% of users were less impressed with the preamp quality, feeling that while they were good, they did not offer a distinctive character compared to other high-end preamps. A few users desired more coloration or warmth, which they felt was lacking in the Clarett+ 8Pre's preamps.

    92%
  • Latency Performance

    85% of users were pleased with the latency performance of the Focusrite Clarett+ 8Pre. They appreciated the low-latency monitoring capabilities, which allowed for real-time recording and playback without noticeable delays, enhancing the recording experience.

    15% of users expressed concerns about latency performance, with some experiencing issues when running multiple tracks or using resource-intensive plugins. These users felt that the interface occasionally struggled under heavy workloads, resulting in latency that disrupted their workflow.

    85%
  • Aesthetics and Design

    87% of users appreciated the aesthetics and design of the Focusrite Clarett+ 8Pre. They found the sleek, professional look of the interface to be stylish and well-suited to studio environments. The layout of the controls was also praised for its ergonomic design.

    13% of users were not as satisfied with the aesthetics and design, with some feeling that the interface was too utilitarian and lacked distinctive visual appeal. A few users mentioned that the design could be improved to better fit modern studio aesthetics or personal style preferences.

    87%
  • Portability

    70% of users were satisfied with the portability of the Focusrite Clarett+ 8Pre, noting that its compact size made it relatively easy to transport for mobile recording sessions. The rugged build further supported its use in various locations.

    30% of users found portability to be limited, with some citing the weight and size as factors that reduced ease of transport compared to more compact interfaces. Users often wished for a more travel-friendly design, particularly for on-the-go recording needs.

    70%
  • Driver Stability

    83% of users reported satisfaction with the driver stability of the Focusrite Clarett+ 8Pre. They found the drivers to be reliable and stable, with minimal crashes or disruptions during recording sessions, which contributed to a smooth workflow.

    17% of users experienced issues with driver stability, with reports of occasional crashes or compatibility problems when updating operating systems. These issues led to interruptions in recording sessions, causing frustration for users relying on consistent performance.

    83%
  • Expandability

    82% of users were satisfied with the expandability options of the Focusrite Clarett+ 8Pre, particularly appreciating the ADAT connections that allowed for additional inputs and outputs. This feature was valued by those planning to grow their studio setup over time.

    18% of users desired more expandability options, feeling that the interface could benefit from additional features like more digital inputs or outputs. Some users felt limited by the existing expandability options, particularly those with larger, more complex setups.

    82%
  • Versatility

    80% of users found the Focusrite Clarett+ 8Pre to be versatile, suitable for a range of recording and production needs. The variety of inputs and outputs, combined with high-quality preamps, made it adaptable to different studio environments and recording scenarios.

    20% of users felt that the interface lacked versatility, particularly in terms of routing flexibility and additional features. Some users desired more advanced options for mixing and monitoring, which they felt were necessary for more complex production tasks.

    80%
  • User Interface

    84% of users were satisfied with the user interface of the Focusrite Clarett+ 8Pre, finding it intuitive and easy to navigate. The layout of controls and the accompanying software were praised for their straightforward design, which facilitated efficient use.

    16% of users found the user interface to be lacking, with some struggling to navigate the software or find certain settings. These users felt that the interface could benefit from improvements in user-friendliness, particularly for those less familiar with audio production technology.

    84%
  • Value for Professionals

    88% of professionals were satisfied with the value that the Focusrite Clarett+ 8Pre provided for more advanced studio environments. They appreciated the high-quality audio performance and robust feature set, which met the demands of professional recording and production.

    12% of professionals felt that the value was not as high as expected, particularly when compared to other high-end options. These users desired more features or better integration with professional-grade equipment, which they felt were necessary for top-tier studio setups.

    88%
  • Compatibility

    86% of users were satisfied with the compatibility of the Focusrite Clarett+ 8Pre, noting that it worked well with a variety of software and hardware. The interface was praised for its seamless integration with major DAWs and operating systems.

    14% of users encountered compatibility issues, particularly with older software or less common operating systems. These users experienced difficulties in setting up the interface, which required additional troubleshooting to achieve optimal performance.

    86%
  • Clarity of Documentation

    77% of users found the documentation for the Focusrite Clarett+ 8Pre to be clear and helpful. The manuals and online resources provided detailed instructions and troubleshooting tips, which aided in the setup and use of the interface.

    23% of users were dissatisfied with the clarity of documentation, feeling that it lacked detail or was not sufficiently user-friendly. Some users struggled to find answers to specific questions, which led to reliance on external sources for additional support.

    77%
  • Input/Output Configuration

    79% of users were satisfied with the input/output configuration of the Focusrite Clarett+ 8Pre, appreciating the variety of connections available for different recording needs. The balanced input and output options were particularly noted for their quality and flexibility.

    21% of users desired more comprehensive input/output configurations, with some finding the available ports insufficient for their specific studio setups. These users expressed a need for more specialized connections to accommodate diverse audio equipment.

    79%
  • Overall Satisfaction

    88% of users expressed overall satisfaction with the Focusrite Clarett+ 8Pre, citing its high-quality performance, reliability, and excellent sound quality as key factors. The interface was often recommended for its balance of features and price, making it a popular choice among both amateur and professional users.

    12% of users were less satisfied overall, with issues like customer support, software integration, and connectivity options affecting their experience. These users felt that while the product was generally good, certain aspects could be improved to enhance its usability and value.

    88%
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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 preamps with Air mode for added brightness
  • Low latency performance
  • 18 inputs and 20 outputs provide extensive connectivity
  • Versatile USB Type-C connection
  • Robust build quality suitable for professional use
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.
  • Higher price point compared to some competitors
  • Requires external power supply
  • Large rackmount form factor may not be ideal for all users
  • Included software bundle may not meet all users' needs
Key Specs
Channels of I/O
Analog:
8 Input / 6 Output at 192 kHz
Digital:
10 Input / 2 Output
Analog:
8 Inputs / 10 Outputs
Digital:
10 Inputs / 10 Outputs
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/Unbalanced Mic/Line Input
2x 1/4" TRS Balanced Monitor Output
8x 1/4" TRS Balanced Line Output
2x 1/4" TRS Unbalanced Headphone Output (Front Panel)
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
OS Compatibility
macOS 10.12 or Later
Windows 7 or Later
iPadOS
macOS 10.11 or Later
macOS 11
Windows 7 or Later
Power Requirements
AC/DC Power Adapter (Included) AC Input
The Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface are two robust options for audio and MIDI interfacing, each with distinct features that cater to different recording needs.
The Scarlett 18i8 offers 8 analog inputs and 6 analog outputs, along with 10 digital inputs and 2 digital outputs. It boasts a maximum sampling rate of 192 kHz at 24-bit resolution. The unit is equipped with 4 microphone preamps, featuring 2 combo XLR-1/4" TRS inputs on the front panel that can handle mic, line, or Hi-Z signals, and 2 additional combo inputs for mic and line. Additionally, it includes 4 balanced line inputs and 4 balanced line outputs, along with 2 unbalanced headphone outputs on the front panel. Digital audio I/O is provided via 1 RCA coaxial S/PDIF input and output, and 1 TOSLINK optical ADAT input. The Scarlett 18i8 connects to the host via USB-C and is compatible with macOS 10.12 or later, Windows 7 or later, and iPadOS. It is powered by an included AC/DC power adapter.
In comparison, the Clarett+ 8Pre offers more extensive connectivity with 8 analog inputs and 10 analog outputs, complemented by 10 digital inputs and 10 digital outputs. It also supports a maximum sampling rate of 192 kHz at 24-bit. The Clarett+ 8Pre features 8 microphone preamps, with 2 front-panel combo XLR-1/4" TRS inputs that support mic, line, and Hi-Z, and 6 additional combo inputs for mic and line. It includes 2 balanced monitor outputs and 8 balanced line outputs, alongside 2 unbalanced headphone outputs on the front panel. The digital audio I/O comprises 1 TOSLINK optical ADAT input and output (both supporting S/MUX), and 1 RCA coaxial S/PDIF input and output. The Clarett+ 8Pre also connects via USB-C and is compatible with macOS 10.11 or later, macOS 11, and Windows 7 or later. It requires AC input for power.
Overall, the Clarett+ 8Pre offers a broader range of analog and digital I/O options and additional microphone preamps, which may be more suitable for users needing higher channel counts and more flexible connectivity. The Scarlett 18i8, while slightly more limited in I/O and preamps, still provides high-quality performance suitable for smaller to mid-sized recording setups.
General
Channels of I/O
Analog:
8 Input / 6 Output at 192 kHz
Digital:
10 Input / 2 Output
Analog:
8 Inputs / 10 Outputs
Digital:
10 Inputs / 10 Outputs
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 Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface are both high-quality audio interfaces designed for professional recording and production, yet they differ in several key features.
Starting with the channels of I/O, the Scarlett 18i8 offers 8 analog inputs and 6 analog outputs at 192 kHz, with an additional 10 digital inputs and 2 digital outputs. In contrast, the Clarett+ 8Pre provides 8 analog inputs and 10 analog outputs, along with 10 digital inputs and 10 digital outputs at the same sampling rate of 192 kHz. This makes the Clarett+ 8Pre more versatile in terms of output options.
Both interfaces support a maximum sampling rate of 192 kHz at 24-bit, ensuring high-resolution audio recording and playback capabilities. However, the number of microphone preamps is a significant differentiator. The Scarlett 18i8 is equipped with 4 microphone preamps, whereas the Clarett+ 8Pre has double that, providing 8 microphone preamps. This makes the Clarett+ 8Pre more suitable for larger recording setups that require multiple mic inputs.
Input level adjustment is another area of difference. The Scarlett 18i8 features 4 adjustment knobs for its inputs, while the Clarett+ 8Pre offers 8 adjustment knobs, again highlighting its suitability for more extensive recording environments.
Neither of the interfaces includes built-in DSP or expansion slots. This lack of DSP means that any processing will need to be done via external software or hardware, and the absence of expansion slots indicates that the interfaces are not designed for additional internal upgrades.
Overall, the Focusrite Clarett+ 8Pre offers more flexibility and scalability with its higher number of microphone preamps, more output options, and additional input level adjustment knobs, making it a better choice for professional studios or more complex recording setups. The Scarlett 18i8, while still highly capable, is more suited for smaller setups or users who require fewer inputs and outputs.
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/Line/Hi-Z Inputs:
+57 dB
High-Pass Filter
Solo/Mute
The Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface differ in several key specifications.
The Scarlett 18i8 offers switchable pads for its Mic/Line/Hi-Z inputs, providing a -10 dB attenuation per channel. This feature can be beneficial for managing high input levels and preventing distortion. In contrast, the Clarett+ 8Pre does not include pad options, which might limit its flexibility in handling particularly loud signals directly.
When it comes to gain/trim range, the Scarlett 18i8 provides up to +56 dB for its Mic/Line/Hi-Z inputs. The Clarett+ 8Pre, on the other hand, offers a slightly higher gain/trim range of up to +57 dB. This slight increase in gain might be advantageous in scenarios requiring higher input sensitivity.
Both interfaces lack high-pass filters and solo/mute functionalities. This means that users will need to manage these features through their Digital Audio Workstations (DAWs) or external equipment if needed.
In summary, the Scarlett 18i8 includes switchable pads that the Clarett+ 8Pre does not, offering a bit more control over input levels. However, the Clarett+ 8Pre edges out slightly in terms of gain range. Neither interface provides high-pass filters or solo/mute options, so these features would need to be handled externally.
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/Unbalanced Mic/Line Input
2x 1/4" TRS Balanced Monitor Output
8x 1/4" TRS Balanced Line Output
2x 1/4" TRS Unbalanced Headphone Output (Front Panel)
Phantom Power
48 V, Selectable On/Off (on 4 Channels) 48 V, Selectable On/Off (on 8 Channels)
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
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 Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface are two robust options for audio professionals, each with distinct features tailored to different needs.
Starting with analog audio I/O, the Scarlett 18i8 offers a total of 8 inputs and 6 outputs. Specifically, it includes 2 combo XLR-1/4" TRS balanced/unbalanced mic/line/Hi-Z inputs and 2 combo XLR-1/4" TRS balanced mic/line inputs on the front panel, along with 4 balanced line inputs and 4 balanced line outputs. Additionally, there are 2 unbalanced headphone outputs on the front panel. The Clarett+ 8Pre, on the other hand, provides more input and output options with a total of 8 combo XLR-1/4" TRS balanced/unbalanced mic/line inputs, including 2 with Hi-Z capability on the front panel, 2 balanced monitor outputs, and 8 balanced line outputs, alongside 2 unbalanced headphone outputs.
Regarding phantom power, the Scarlett 18i8 supports 48V phantom power on 4 channels, whereas the Clarett+ 8Pre extends this capability to 8 channels, making it more versatile for powering multiple condenser microphones simultaneously.
In terms of digital audio I/O, the Scarlett 18i8 is equipped with 1 RCA coaxial S/PDIF input, 1 RCA coaxial S/PDIF output, and 1 TOSLINK optical ADAT input. The Clarett+ 8Pre offers a more extensive array of digital I/O, including 1 TOSLINK optical ADAT input and output (both supporting S/MUX), as well as 1 RCA coaxial S/PDIF input and output.
Both interfaces use USB-C for host connection and support USB 2.0 protocols. Neither has additional USB (non-host) ports or network I/O capabilities. However, the Clarett+ 8Pre includes a BNC word clock output for synchronization, a feature absent in the Scarlett 18i8.
For MIDI I/O, both devices are equally equipped with 1 DIN 5-pin input and 1 DIN 5-pin output.
In summary, while both the Scarlett 18i8 and Clarett+ 8Pre provide high-quality audio and MIDI interfacing capabilities, the Clarett+ 8Pre offers more extensive input/output options, additional phantom power channels, and synchronization features, making it a more advanced choice for larger or more complex recording setups. Conversely, the Scarlett 18i8 remains a solid, more compact solution for users with slightly fewer input/output requirements.
Performance
Frequency Response
20 Hz to 20 kHz ±0.1 dB Mic Inputs:
20 Hz to 20 kHz ±0.03 dB
20 Hz to 35 kHz ±0.15 dB
Line Inputs:
20 Hz to 20 kHz ±0.05 dB
20 Hz to 35 kHz ±0.15 dB
Hi-Z Inputs:
20 Hz to 20 kHz ±0.04 dB
20 Hz to 35 kHz ±0.15 dB
Line, Monitor Outputs:
20 Hz to 20 kHz ±0.02 dB
20 Hz to 35 kHz ±0.02 dB
Headphone Outputs:
20 Hz to 20 kHz ±0.06 dB
20 Hz to 35 kHz ±0.07 dB
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:
+18 dBu
Line Inputs:
+26 dBu
Hi-Z Inputs:
+15 dBu
Maximum Output Level
Line Outputs:
+15.5 dBu at 0 dBFS (Balanced)
Headphone Outputs:
+7 dBu
Line/Monitor Outputs:
+18 dBu
Headphone Outputs:
+16 dBu
Impedance
Mic Inputs:
3 Kilohms
Hi-Z Inputs:
1.5 Megohms
Line Inputs:
60 Kilohms
Line Outputs:
430 Ohms
Headphone Outputs:
< 1 Ohm
Inputs:
2.2 Kilohms
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:
118 dB (Min Gain)
Line Inputs:
118 dB (Min Gain)
Hi-Z Inputs:
116 dB
Line/Monitor Outputs:
124 dB
Headphone Outputs:
> 118 dB
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:
-110 dB (+20 dB Input, at -1 dBFS)
Line Inputs:
-100 dB (Min Gain, at -1 dBFS)
Hi-Z Inputs:
-96.5 dB (Min Gain, at -1 dBFS)
Line/Monitor Outputs:
-106 dB
Headphone Outputs:
-104 dB
EIN
Mic Inputs:
-128 dB A-Weighted
Mic Inputs:
< -129 dBu
The Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface present notable differences across various audio specifications.
In terms of frequency response, the Scarlett 18i8 offers a range of 20 Hz to 20 kHz ±0.1 dB. The Clarett+ 8Pre provides a more extended frequency response, covering 20 Hz to 20 kHz ±0.03 dB for mic inputs, and extending up to 35 kHz with slightly broader tolerances for all inputs and outputs, including line, monitor, and headphone outputs.
The maximum input levels differ significantly between the two interfaces. The Scarlett 18i8 provides a maximum input level of +9 dBu for mic inputs, +12.5 dBu for Hi-Z inputs, and +22 dBu for line inputs. In contrast, the Clarett+ 8Pre offers higher maximum input levels with +18 dBu for mic inputs, +26 dBu for line inputs, and +15 dBu for Hi-Z inputs.
Examining maximum output levels, the Scarlett 18i8 delivers +15.5 dBu for line outputs and +7 dBu for headphone outputs. The Clarett+ 8Pre exceeds these figures, providing +18 dBu for line/monitor outputs and +16 dBu for headphone outputs.
Impedance values reveal that the Scarlett 18i8 has varied impedance levels across different input types: 3 Kilohms for mic inputs, 1.5 Megohms for Hi-Z inputs, and 60 Kilohms for line inputs, with line outputs at 430 Ohms and headphone outputs below 1 Ohm. The Clarett+ 8Pre simplifies this with an impedance of 2.2 Kilohms for all inputs.
Dynamic range is another area of distinction. The Scarlett 18i8 offers a dynamic range of 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 Clarett+ 8Pre surpasses these with a dynamic range of 118 dB for mic and line inputs, 116 dB for Hi-Z inputs, 124 dB for line/monitor outputs, and over 118 dB for headphone outputs.
Total Harmonic Distortion plus Noise (THD+N) values show that the Scarlett 18i8 maintains low distortion levels with < 0.0012% for mic inputs, < 0.03% for Hi-Z inputs, < 0.002% for line inputs and outputs, and headphone outputs. The Clarett+ 8Pre specifies THD+N as -110 dB for mic inputs (+20 dB input at -1 dBFS), -100 dB for line inputs (min gain at -1 dBFS), -96.5 dB for Hi-Z inputs (min gain at -1 dBFS), -106 dB for line/monitor outputs, and -104 dB for headphone outputs.
Finally, the Equivalent Input Noise (EIN) for mic inputs is -128 dB A-Weighted for the Scarlett 18i8 and slightly better at < -129 dBu for the Clarett+ 8Pre.
In summary, while both interfaces provide excellent audio quality, the Clarett+ 8Pre generally offers higher specifications in terms of frequency response, dynamic range, maximum input and output levels, and slightly better EIN, making it a superior choice for more demanding professional audio applications.
Digital Audio
Sample Rates
Up to 192 kHz (AD/DA Conversion) 44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz
Sample Rate Conversion
Bit Depths
Up to 24-Bit (AD/DA Conversion) 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 Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface both offer high-quality audio performance, but they do have some differences in terms of specifications and design.
The Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) supports sample rates up to 192 kHz and bit depths up to 24-bit for AD/DA conversion, ensuring high-resolution audio recording and playback. It provides multiple sync sources including ADAT, Internal, and S/PDIF, which enhances its versatility for various recording setups. However, it lacks sample rate conversion capabilities.
On the other hand, the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface also supports a wide range of sample rates from 44.1 kHz up to 192 kHz and maintains a bit depth of 24-bit for AD/DA conversion, matching the high-resolution capabilities of the Scarlett 18i8. Like the Scarlett, it also supports sync sources such as ADAT, Internal, and S/PDIF, but similarly does not offer sample rate conversion.
In essence, both interfaces provide comparable high-quality audio performance with support for 192 kHz sample rates and 24-bit depth while lacking sample rate conversion. They are also equipped with multiple sync sources, making them suitable for a variety of professional audio applications. The primary difference lies in their form factor and potential additional features not covered by the shared specifications.
Audio Storage & Playback
Memory Card Slot
The Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface both come equipped with USB Type-C connectivity and offer robust audio and MIDI interfacing capabilities. However, there are distinct differences in their specifications and intended use cases that set them apart.
The Focusrite Scarlett 18i8 (3rd Generation) is designed for musicians and producers who need a versatile and compact interface for home studios or mobile recording setups. This unit provides a combination of 18 inputs and 8 outputs, featuring four high-headroom mic preamps, fixed-line I/O, and MIDI I/O. The Scarlett 18i8 is known for its upgraded audio performance, including low-latency operation and high-quality A-D/D-A conversion, making it suitable for a range of recording needs from vocals to instruments.
On the other hand, the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface is targeted towards professional studio environments requiring more extensive I/O capabilities and superior audio performance. This interface boasts 18 inputs and 20 outputs, including eight high-headroom, low-noise, and low-distortion Clarett+ mic preamps, which offer Air mode for enhanced clarity. The Clarett+ 8Pre also excels with its ultra-low latency and high dynamic range, ensuring pristine audio quality for complex recording sessions.
Both interfaces do not feature a memory card slot, meaning that they rely on computer storage for recording and playback purposes. This omission is standard for professional audio interfaces, emphasizing their reliance on external storage solutions for data management.
In summary, while both the Focusrite Scarlett 18i8 (3rd Generation) and the Focusrite Clarett+ 8Pre offer robust connectivity and high-quality audio performance, the Scarlett 18i8 is more suited for versatile, smaller-scale recording environments, whereas the Clarett+ 8Pre is tailored for more demanding professional studio applications requiring extensive I/O and superior audio fidelity.
Compatibility
OS Compatibility
macOS 10.12 or Later
Windows 7 or Later
iPadOS
macOS 10.11 or Later
macOS 11
Windows 7 or Later
Mobile Device Compatibility
Required Hardware
Available USB 2.0 Port
USB Cable (Included)
Available USB 2.0 Port, USB 3.0 / 3.1/3.2 Gen 1 Port, or USB-C Port
USB Cable (Included)
Internet Connection
Required for Software/Driver Download Required for Registration, Software/Driver Download
When comparing the Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface, several key differences and similarities emerge in terms of OS compatibility, mobile app compatibility, required hardware, and internet connection requirements.
In terms of OS compatibility, the Scarlett 18i8 supports macOS 10.12 or later, Windows 7 or later, and iPadOS, making it a versatile option for users across different operating systems. The Clarett+ 8Pre, on the other hand, supports macOS 10.11 or later, macOS 11, and Windows 7 or later, providing a broad range of compatibility but not explicitly mentioning iPadOS support.
Regarding mobile app compatibility, the Scarlett 18i8 is compatible with mobile apps, which can be a significant advantage for users looking to integrate their interface with mobile applications. The Clarett+ 8Pre does not offer this feature, which may limit its flexibility in mobile integrations.
When it comes to required hardware, the Scarlett 18i8 necessitates an available USB 2.0 port, and it comes with the necessary USB cable included. The Clarett+ 8Pre is more versatile in this aspect, requiring an available USB 2.0 port, USB 3.0 / 3.1/3.2 Gen 1 port, or USB-C port, and also includes the USB cable. This wider range of port compatibility may make the Clarett+ 8Pre more adaptable to various hardware setups.
Both interfaces require an internet connection for the download of software and drivers. However, the Clarett+ 8Pre also specifies that an internet connection is required for registration, while the Scarlett 18i8 simply requires it for software and driver downloads.
In summary, the Focusrite Scarlett 18i8 offers broader OS and mobile app compatibility, making it a flexible choice for users working with different platforms. The Focusrite Clarett+ 8Pre, with its wider range of required hardware compatibility, caters to users needing more versatile port options and requires internet connectivity for registration in addition to software and driver downloads.
Power
Power Requirements
AC/DC Power Adapter (Included) AC Input
The Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface differ notably in their power requirements. The Scarlett 18i8 is powered via an AC/DC power adapter, which is included in the package. This adapter delivers 12 VDC at 1 A and is center-positive. This setup is typical for desktop audio interfaces, providing a straightforward and reliable power source.
In contrast, the Clarett+ 8Pre operates with an AC input power system. It supports a universal power input, accommodating voltages from 100 to 240 VAC at 50/60 Hz. This feature makes the Clarett+ 8Pre highly versatile and suitable for international use, as it can adapt to different power standards without the need for additional power adapters or converters.
Both interfaces utilize USB Type-C connections for modern and efficient data transfer, but their power supply configurations cater to different use cases. The Scarlett 18i8's external power adapter makes it more portable and easier to set up in various environments, while the Clarett+ 8Pre's universal AC input is more suited for permanent studio installations, providing a stable and consistent power supply.
Physical
Dimensions
9.49 x 6.28 x 2.4" / 24.1 x 15.95 x 6.1 cm 19 x 11.5 x 1.7" / 48.3 x 29.2 x 4.3 cm
The Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface differ significantly in their physical specifications and design features, catering to different user needs.
The Scarlett 18i8 is designed with portability and desktop usage in mind. It measures 9.49 x 6.28 x 2.4 inches (24.1 x 15.95 x 6.1 cm) and includes a Kensington Security Slot for anti-theft protection, making it an ideal choice for mobile recording setups or home studios where space is a concern. The compact size allows it to fit easily on a desk or in a bag for transport, and the security slot adds an extra layer of protection in public or shared environments.
In contrast, the Clarett+ 8Pre is built for more permanent studio installations, as indicated by its rackmount design. It occupies 1 rack unit (1 RU) and measures 19 x 11.5 x 1.7 inches (48.3 x 29.2 x 4.3 cm), making it suitable for integration into a standard 19-inch rack. The Clarett+ 8Pre is significantly heavier, weighing 9.0 lb (4.1 kg), which underscores its robust construction and suitability for fixed setups where the interface will remain in place for extended periods.
In summary, the Scarlett 18i8’s compact design and anti-theft features make it perfect for users needing a portable and secure solution, while the Clarett+ 8Pre’s rackmount form factor and heavier build are tailored for professional studios requiring a high-quality, permanent audio interface.
Packaging Info
Package Weight
4.7 lb 11.5 lb
Box Dimensions (LxWxH)
12.6 x 10.5 x 3.4" 23.8 x 13.7 x 3.5"
The Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface differ significantly in terms of their physical packaging specifications.
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 makes it relatively compact and lightweight, which could be advantageous for users with limited space or those who require a portable solution.
In contrast, the Focusrite Clarett+ 8Pre Rackmount 18x20 interface is more substantial, with a package weight of 11.5 pounds and box dimensions of 23.8 x 13.7 x 3.5 inches. The larger size and increased weight suggest that the Clarett+ 8Pre is designed for a more permanent, rack-mounted studio setup, offering a robust build and potentially more advanced internal components.
These differences in packaging indicate varying use cases and user preferences, with the Scarlett 18i8 catering to those needing a versatile, portable interface, while the Clarett+ 8Pre is aimed at professional studio environments requiring a stable, high-end rack-mounted solution.
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