Focusrite Clarett+ 8Pre vs. Scarlett 18i20: A Thorough Comparison

Focusrite Clarett+ 8Pre vs. Scarlett 18i20: A Thorough Comparison

The Focusrite Scarlett 18i20 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface are both high-quality devices designed for professional audio recording and production, yet they cater to slightly different needs and preferences.
The Scarlett 18i20 (3rd Gen) is part of Focusrite's popular Scarlett series, known for its reliability and affordability. It offers 18 inputs and 20 outputs, including eight Scarlett mic preamps, which deliver a pristine and natural sound. The unit features high-performance 24-bit/192kHz AD-DA converters, ensuring that your recordings are clear and detailed. It also includes two high-headroom instrument inputs, four monitor outputs with anti-thump technology, and two independent headphone outputs, making it versatile for both studio and live recording settings. The Scarlett 18i20 is equipped with USB-C connectivity, ensuring fast and reliable data transfer, and it comes with a suite of software, including Ableton Live Lite and the Focusrite Red Plug-in Suite, providing a comprehensive package for music production.
On the other hand, the Clarett+ 8Pre is part of Focusrite's Clarett+ series, which is designed to deliver superior sound quality and performance. This 18x20 USB Type-C audio/MIDI interface features eight high-gain, low-noise Clarett+ mic preamps with AIR mode, which emulates the classic ISA transformer-based preamps, adding an extra sheen to vocals and acoustic instruments. The Clarett+ 8Pre boasts improved converters with an impressive dynamic range, providing ultra-low distortion and more headroom, making it ideal for critical listening and mixing tasks. Additionally, the Clarett+ offers ADAT I/O for expanding your setup with additional preamps or other digital equipment. It also includes Focusrite’s Hitmaker Expansion, a collection of high-quality plug-ins and software tools from industry-leading developers, offering everything you need to create professional-quality recordings.
In summary, the Scarlett 18i20 (3rd Gen) is a versatile and reliable interface, perfect for musicians and producers seeking high-quality recordings at an affordable price. The Clarett+ 8Pre, however, is aimed at professionals who demand superior sound quality, enhanced features, and expanded connectivity options. Both interfaces are built with Focusrite’s renowned attention to detail and commitment to high performance, but the Clarett+ 8Pre stands out for its exceptional preamps, superior converters, and premium software bundle.

In-Depth Review of Specifications, Pros, and Cons

User Rating Based on Analysis of Reviews
  • Purchase Value

    85% of users appreciated the purchase value of the Focusrite Scarlett 18i20, primarily due to its comprehensive feature set relative to its price point. Users highlighted that the interface offers high-quality preamps, plenty of inputs and outputs, and stable performance, making it a solid investment for both amateur and professional audio setups. Many users felt that the interface provides a similar level of quality to more expensive equipment, which adds to its perceived value.

    15% of users found the purchase value lacking, often due to their expectations not being met when comparing the interface to more high-end alternatives. Some users felt that while the features are impressive, the price was still slightly too high for their needs, particularly when they did not require all the functionality offered. Additionally, a few users experienced issues with the software that influenced their perception of value.

    85%
  • Quality of Materials

    90% of users praised the quality of materials used in the Focusrite Scarlett 18i20, noting its robust and durable build. Many users commented on the solid construction, which inspires confidence in its longevity and ability to withstand regular studio use. The sleek design and sturdy knobs and buttons were particularly appreciated, contributing to a professional feel.

    10% of users were dissatisfied with the quality of materials, citing minor issues such as plastic components that felt less durable. Some users also mentioned that the unit was heavier than expected, which affected portability for those who frequently move equipment between locations. Despite these concerns, they were relatively few compared to the overall satisfaction.

    90%
  • Ease of Use

    80% of users found the Focusrite Scarlett 18i20 user-friendly, with straightforward setup and intuitive controls. The interface's compatibility with popular DAWs was a significant advantage, allowing for seamless integration into existing workflows. Many users appreciated the clear labeling and logical layout, which reduced the learning curve for new users.

    20% of users experienced difficulties with ease of use, often related to initial setup issues or software installation challenges. Some users found the multiple input and output options overwhelming without prior experience, leading to confusion. A few users also encountered problems with firmware updates, which impacted their overall experience.

    80%
  • Sound Quality

    92% of users were highly satisfied with the sound quality provided by the Focusrite Scarlett 18i20, praising its clarity and precision. The high-quality preamps and converters were frequently highlighted for their ability to deliver professional-grade audio, even in demanding recording environments. Users appreciated the clean and transparent sound, which enhanced their production capabilities.

    8% of users were less impressed with the sound quality, often due to specific issues such as noise interference or perceived limitations in dynamic range. A few users noted that while the sound quality was generally good, it did not meet their high expectations based on previous experiences with more expensive equipment.

    92%
  • Customer Support

    75% of users reported positive experiences with Focusrite's customer support, citing helpful and responsive service when resolving issues. Many users appreciated the availability of online resources and tutorials, which facilitated troubleshooting and enhanced their understanding of the product.

    25% of users were dissatisfied with customer support, often due to delayed response times or unresolved technical issues. Some users felt that the support team lacked sufficient knowledge to address their specific problems, leading to frustration. Additionally, a few users encountered difficulties accessing timely help during critical situations.

    75%
  • Software Integration

    78% of users were satisfied with the software integration capabilities of the Focusrite Scarlett 18i20, noting its compatibility with various digital audio workstations. The inclusion of bundled software was seen as a valuable addition, enhancing the overall production experience and providing additional creative tools.

    22% of users faced challenges with software integration, often due to compatibility issues or difficulties in installing and configuring the bundled applications. Some users reported that the software did not always function as expected, leading to frustration and additional troubleshooting efforts.

    78%
  • Latency Performance

    82% of users were pleased with the low-latency performance of the Focusrite Scarlett 18i20, which facilitated smooth recording and playback without noticeable delays. The use of USB-C connectivity was particularly praised for its speed and reliability, contributing to an efficient workflow.

    18% of users experienced latency issues, often related to specific system configurations or software settings. Some users found that achieving optimal performance required additional tweaking and adjustments, which detracted from their overall satisfaction.

    82%
  • Portability

    70% of users found the Focusrite Scarlett 18i20 reasonably portable, appreciating its compact design that allowed for easy transportation between studio sessions. The sturdy build was seen as an advantage for those who needed to move the interface frequently.

    30% of users were less satisfied with the portability, mainly due to the interface's weight and size. Some users felt that it was not the most convenient option for mobile recording setups, especially when compared to lighter and more compact alternatives.

    70%
  • Durability

    88% of users commended the durability of the Focusrite Scarlett 18i20, noting its ability to withstand regular use without significant wear and tear. The robust construction and quality materials were frequently mentioned as factors that contributed to its long-lasting performance.

    12% of users raised concerns about durability, often due to specific issues such as loose knobs or minor cosmetic damage over time. Some users felt that certain components could be improved to ensure even greater resilience under heavy use.

    88%
  • Aesthetic Design

    85% of users appreciated the aesthetic design of the Focusrite Scarlett 18i20, praising its sleek and modern appearance. The interface's visual appeal was seen as a reflection of its professional quality, enhancing the overall studio environment.

    15% of users were less impressed with the aesthetic design, often citing subjective preferences for different styles or colors. Some users felt that while the design was functional, it lacked the distinctive flair they preferred in studio equipment.

    85%
  • Compatibility

    80% of users were satisfied with the compatibility of the Focusrite Scarlett 18i20, highlighting its seamless integration with various operating systems and audio software. The interface's ability to work with both Mac and Windows platforms was a significant advantage for many users.

    20% of users encountered compatibility issues, often related to specific software or hardware configurations. Some users had difficulties with driver installations or experienced conflicts with existing equipment, which impacted their overall satisfaction.

    80%
  • Input/Output Options

    90% of users were highly satisfied with the extensive input and output options available on the Focusrite Scarlett 18i20. The multiple channels and connectivity choices were seen as a key feature, providing flexibility for various recording and mixing setups.

    10% of users found the input/output options overwhelming, particularly if they had simpler recording needs. Some users felt that the abundance of choices added unnecessary complexity to their workflow, especially if they did not utilize all the available connections.

    90%
  • Preamps

    91% of users were impressed with the quality of the preamps in the Focusrite Scarlett 18i20, noting their clean and transparent sound. Many users highlighted the preamps as a standout feature, enhancing the overall audio quality and allowing for precise capture of sound sources.

    9% of users had concerns about the preamps, often related to specific use cases or preferences for different tonal characteristics. Some users felt that the preamps could be improved to offer greater warmth or coloration, depending on their recording style.

    91%
  • Stability

    87% of users reported stable and reliable performance from the Focusrite Scarlett 18i20, with minimal crashes or technical issues during use. The interface's dependability was seen as a crucial factor for uninterrupted recording sessions.

    13% of users experienced stability issues, often related to software glitches or firmware updates. Some users encountered occasional crashes or connectivity problems, which disrupted their workflow and required additional troubleshooting.

    87%
  • Driver Support

    77% of users were satisfied with the driver support for the Focusrite Scarlett 18i20, noting regular updates and compatibility with major operating systems. Many users appreciated the ease of accessing drivers and the proactive approach to resolving potential issues.

    23% of users had challenges with driver support, often related to installation difficulties or outdated drivers causing compatibility issues. Some users felt that the support for certain operating systems could be improved to ensure smoother performance.

    77%
  • Bundled Software

    83% of users appreciated the bundled software that comes with the Focusrite Scarlett 18i20, finding it to be a valuable addition to their audio production toolkit. The inclusion of DAWs and plugins was particularly appreciated, providing users with a complete package to start recording and mixing.

    17% of users were less impressed with the bundled software, often due to limitations in functionality or compatibility issues with their preferred DAWs. Some users felt that the software did not add significant value to their setup, especially if they already owned similar tools.

    83%
  • USB-C Connectivity

    89% of users praised the USB-C connectivity of the Focusrite Scarlett 18i20, citing its fast data transfer rates and reliable connection. The modern interface was seen as a significant improvement over older connectivity standards, enhancing overall performance.

    11% of users encountered issues with USB-C connectivity, often related to compatibility with existing equipment or the need for additional adapters. Some users felt that while USB-C is advantageous, it required them to upgrade other components in their setup, which was not always convenient.

    89%
  • Control Software

    79% of users found the control software for the Focusrite Scarlett 18i20 to be intuitive and effective for managing various settings and configurations. The software's interface was praised for its user-friendly design and ease of use.

    21% of users faced challenges with the control software, often due to bugs or limitations in functionality. Some users reported difficulties in navigating the interface or accessing advanced settings, which impacted their overall experience.

    79%
  • Recording Quality

    90% of users were satisfied with the recording quality achieved with the Focusrite Scarlett 18i20, noting its ability to capture clear and detailed audio. The interface's performance in various recording scenarios was highly praised, contributing to professional-grade results.

    10% of users were less satisfied with the recording quality, often due to specific issues such as noise or interference in certain environments. Some users felt that while the quality was generally good, it did not meet their expectations for more critical recording applications.

    90%
  • Versatility

    88% of users appreciated the versatility of the Focusrite Scarlett 18i20, highlighting its ability to adapt to a wide range of recording and mixing tasks. The interface's flexibility in handling different audio sources and configurations was seen as a key strength.

    12% of users found the versatility to be limited, often due to specific needs that the interface could not accommodate. Some users felt that while the interface was versatile, it lacked certain specialized features required for particular audio production tasks.

    88%
  • 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.
  • 8 mic/line inputs and 10 line outputs for versatile connectivity.
  • USB-C connectivity for faster data transfer and low latency.
  • Comprehensive software bundle including DAWs and plug-ins.
  • Expandable via ADAT for additional inputs and outputs.
  • 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:
  • Higher price point compared to entry-level interfaces.
  • Might be overkill for small home studios with minimal input needs.
  • No Thunderbolt support, which might be preferable for some users.
  • 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 Inputs / 10 Outputs
Digital:
10 Inputs / 10 Outputs
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
8 Preamps 8 Preamps
Analog Audio I/O
2x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line/Hi-Z Input
6x Combo XLR-1/4" TRS Balanced Mic/Line Input
10x 1/4" TRS Balanced/Unbalanced Line/Monitor Output
2x 1/4" TRS Unbalanced Headphone Output
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 / S/PDIF Input (S/MUX Support)
1x TOSLINK Optical ADAT Input (S/MUX Support)
1x TOSLINK Optical ADAT / S/PDIF Output (S/MUX Support)
1x TOSLINK Optical ADAT Output (S/MUX Support)
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
macOS 10.13
macOS 10.14
macOS 10.15
macOS 11
Windows 7 or Later
macOS 10.11 or Later
macOS 11
Windows 7 or Later
Power Requirements
AC Input AC Input
The Focusrite Scarlett 18i20 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface share many similarities but also have distinct differences that cater to different needs and preferences.
In terms of channels of I/O, both the Scarlett 18i20 and the Clarett+ 8Pre offer 8 analog inputs and 10 analog outputs, as well as 10 digital inputs and 10 digital outputs. This makes both interfaces suitable for a wide range of recording and mixing scenarios, accommodating multiple instruments, mics, and external devices.
Both interfaces support a maximum sampling rate of 192 kHz at 24-bit resolution, ensuring high-quality audio recording and playback.
Each interface features 8 microphone preamps, providing ample inputs for recording vocals, drums, or other multi-mic setups.
When it comes to analog audio I/O, both models have 2 combo XLR-1/4" TRS balanced/unbalanced mic/line/Hi-Z inputs on the front panel. However, the placement of the additional 6 combo XLR-1/4" TRS balanced/unbalanced mic/line inputs differs slightly. The Scarlett 18i20 has these inputs also on the front panel, while the Clarett+ 8Pre positions them on the rear panel, which might affect accessibility depending on your studio setup.
The Scarlett 18i20 offers 10 balanced/unbalanced TRS line/monitor outputs, while the Clarett+ 8Pre provides 2 balanced TRS monitor outputs and 8 balanced TRS line outputs. Both models include 2 unbalanced TRS headphone outputs on the front panel.
Regarding digital audio I/O, both interfaces feature an RCA coaxial S/PDIF input and output, as well as TOSLINK optical ADAT inputs and outputs with S/MUX support. The Scarlett 18i20 has an additional TOSLINK optical ADAT input and output, providing more flexibility for expanding your setup with additional digital devices.
Both interfaces use a USB-C host connection, ensuring fast and reliable data transfer. They are compatible with macOS and Windows operating systems, with the Scarlett 18i20 supporting macOS 10.12 through macOS 11 and Windows 7 or later, and the Clarett+ 8Pre supporting macOS 10.11 or later and Windows 7 or later.
Both interfaces require an AC input for power, ensuring stable operation during recording sessions.
In conclusion, while both the Focusrite Scarlett 18i20 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface offer similar core features, they have subtle differences in their analog audio I/O configurations and digital expansion options that may influence your choice depending on your specific studio needs.
General
Channels of I/O
Analog:
8 Inputs / 10 Outputs
Digital:
10 Inputs / 10 Outputs
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
8 Preamps 8 Preamps
Input Level Adjustment
8x Knob 8x Knob
Expansion Slots
The Focusrite Scarlett 18i20 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface share several common features while also exhibiting some key differences.
Both interfaces offer a total of 18 inputs and 20 outputs, comprising 8 analog inputs and 10 analog outputs, along with 10 digital inputs and 10 digital outputs. They both support a maximum sampling rate of 192 kHz at 24-bit resolution, ensuring high-quality audio recording and playback. Each unit is equipped with 8 microphone preamps, providing ample connectivity for various recording needs. Additionally, both interfaces feature 8 input level adjustment knobs, allowing users to fine-tune the input levels for optimal recording quality.
One notable difference between the two is the built-in DSP (Digital Signal Processing) capability. The Focusrite Scarlett 18i20 does not include built-in DSP, whereas the Clarett+ 8Pre does not specify this feature either, implying it may also lack built-in DSP. Furthermore, neither interface includes a built-in microphone or expansion slots, maintaining a streamlined design focused on essential recording functions.
In summary, the Focusrite Scarlett 18i20 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface offer similar specifications in terms of I/O channels, sampling rate, microphone inputs, and input level adjustment. However, the absence of built-in DSP in both models and other advanced features makes them primarily suited for users seeking robust, high-quality audio interfaces with essential functionalities.
Signal Processing
Pad
-10 dB (Switchable per Channel)
Gain/Trim Range
Mic/Line Inputs:
56 dB
Mic/Line/Hi-Z Inputs:
+57 dB
High-Pass Filter
Solo/Mute
Mute per Master
The Focusrite Scarlett 18i20 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface have distinct differences in their specifications regarding pad, gain/trim range, high-pass filter, and solo/mute functionalities.
The Scarlett 18i20 features a switchable pad of -10 dB per channel, providing the user with the ability to manage high-level input signals more effectively. In contrast, the Clarett+ 8Pre does not offer a pad feature. This distinction may influence users who require more flexibility in handling varying signal levels.
In terms of gain/trim range, the Scarlett 18i20 offers a gain range of 56 dB for its mic/line inputs. Meanwhile, the Clarett+ 8Pre provides a slightly broader gain/trim range of +57 dB for its mic/line/Hi-Z inputs. This makes the Clarett+ 8Pre marginally more versatile for a wider range of input sources.
Both interfaces lack a high-pass filter, meaning neither offers built-in low-frequency roll-off capabilities. This could be a consideration for users who require onboard filtering options to manage low-end rumble or noise.
Regarding solo/mute functionalities, the Scarlett 18i20 includes a mute feature per master, allowing users to mute channels as needed. On the other hand, the Clarett+ 8Pre does not include solo or mute options, which might be a drawback for users who rely on these features for their workflow.
Overall, the Scarlett 18i20 offers more flexibility with its pad and mute features, while the Clarett+ 8Pre provides a slightly greater gain range. Users will need to weigh these differences based on their specific needs and recording environments.
Connectivity
Analog Audio I/O
2x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line/Hi-Z Input
6x Combo XLR-1/4" TRS Balanced Mic/Line Input
10x 1/4" TRS Balanced/Unbalanced Line/Monitor Output
2x 1/4" TRS Unbalanced Headphone Output
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 8 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 / S/PDIF Input (S/MUX Support)
1x TOSLINK Optical ADAT Input (S/MUX Support)
1x TOSLINK Optical ADAT / S/PDIF Output (S/MUX Support)
1x TOSLINK Optical ADAT Output (S/MUX Support)
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 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 18i20 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface are both robust audio interfaces with a variety of features tailored for professional and home studio recording.
In terms of analog audio inputs and outputs, both interfaces offer 2 front panel combo XLR-1/4" TRS balanced/unbalanced mic/line/Hi-Z inputs and 6 combo XLR-1/4" TRS balanced/unbalanced mic/line inputs. However, the Scarlett 18i20 provides 10 1/4" TRS balanced/unbalanced line/monitor outputs while the Clarett+ 8Pre offers 2 1/4" TRS balanced monitor outputs and 8 1/4" TRS balanced line outputs. Both interfaces include 2 1/4" TRS unbalanced headphone outputs.
For phantom power, both models feature 48 V selectable on/off phantom power available on all 8 channels.
The digital audio I/O on the Scarlett 18i20 includes 1 RCA coaxial S/PDIF input and output, 1 TOSLINK optical ADAT/S/PDIF input and output (with S/MUX support), an additional TOSLINK optical ADAT input and output (with S/MUX support), whereas the Clarett+ 8Pre features 1 TOSLINK optical ADAT input and output (with S/MUX support) and 1 RCA coaxial S/PDIF input and output.
Regarding host connection, both interfaces utilize a USB-C port and adhere to the USB 2.0 protocol. Neither device includes a USB (non-host) port or network I/O.
For synchronization, both the Scarlett 18i20 and the Clarett+ 8Pre have a BNC Word Clock output.
Lastly, MIDI connectivity is consistent across both models, with each providing 1 DIN 5-pin MIDI input and 1 DIN 5-pin MIDI output.
In summary, while both interfaces share many similarities in terms of input/output configurations, phantom power, host connection, sync I/O, and MIDI I/O, subtle differences such as the number and type of analog audio outputs and the configuration of digital audio I/O may influence the choice between the Scarlett 18i20 and the Clarett+ 8Pre, depending on specific user needs and studio setup 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)
+16 dBu (Min Gain, with Pad)
Hi-Z Inputs:
+12.5 dBu (Min Gain)
+14 dBu (Min Gain, with Pad)
Line Inputs:
+22 dBu (Min Gain)
+29 dBu (Min Gain, with Pad)
Mic Inputs:
+18 dBu
Line Inputs:
+26 dBu
Hi-Z Inputs:
+15 dBu
Maximum Output Level
Line Outputs:
+15.5 dBu (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:
108.5 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 18i20 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface are two high-quality audio interfaces with distinct specifications.
In terms of frequency response, the Scarlett 18i20 maintains a range of 20 Hz to 20 kHz ±0.1 dB across its inputs and outputs. The Clarett+ 8Pre, however, offers a broader frequency response, extending to 35 kHz with variations specified for different input types: 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), and Headphone Outputs (20 Hz to 20 kHz ±0.06 dB, 20 Hz to 35 kHz ±0.07 dB). This suggests the Clarett+ offers a wider and more detailed frequency response.
The maximum input levels also differ between the two interfaces. The Scarlett 18i20 can handle a maximum input level of +9 dBu for mic inputs (+16 dBu with pad), +12.5 dBu for Hi-Z inputs (+14 dBu with pad), and +22 dBu for line inputs (+29 dBu with pad). In comparison, the Clarett+ 8Pre supports higher maximum input levels: +18 dBu for mic inputs, +26 dBu for line inputs, and +15 dBu for Hi-Z inputs.
For maximum output levels, the Scarlett 18i20 provides +15.5 dBu for line outputs (balanced) and +7 dBu for headphone outputs. The Clarett+ 8Pre surpasses this with +18 dBu for line/monitor outputs and +16 dBu for headphone outputs, indicating stronger output capabilities.
Impedance values also show differences. The Scarlett 18i20 features mic input impedance at 3 Kilohms, Hi-Z inputs at 1.5 Megohms, line inputs at 60 Kilohms, line outputs at 430 Ohms, and headphone outputs at less than 1 Ohm. The Clarett+ 8Pre, on the other hand, lists its input impedance at 2.2 Kilohms, but does not specify individual values for different input types.
Dynamic range is another crucial factor, with the Scarlett 18i20 offering 111 dBA for mic inputs, 110 dBA for Hi-Z inputs, 110.5 dBA for line inputs, 108.5 dBA for line outputs, and 104 dBA for headphone outputs. The Clarett+ 8Pre outperforms in this aspect, providing 118 dB for both mic and line inputs (at minimum gain), 116 dB for Hi-Z inputs, an impressive 124 dB for line/monitor outputs, and greater than 118 dB for headphone outputs.
In terms of Total Harmonic Distortion plus Noise (THD+N), the Scarlett 18i20 shows values of less than 0.0012% for mic inputs, less than 0.03% for Hi-Z inputs, less than 0.002% for line inputs and outputs, and less than 0.002% for headphone outputs. The Clarett+ 8Pre exhibits THD+N values of -110 dB for mic inputs, -100 dB for line inputs, -96.5 dB for Hi-Z inputs, -106 dB for line/monitor outputs, and -104 dB for headphone outputs, indicating very low distortion levels.
Lastly, Equivalent Input Noise (EIN) for mic inputs in the Scarlett 18i20 is -128 dB A-Weighted, while the Clarett+ 8Pre boasts slightly better performance with an EIN of less than -129 dBu.
In summary, while both interfaces deliver high-quality performance, the Focusrite Clarett+ 8Pre generally offers superior specifications in terms of frequency response, maximum input and output levels, dynamic range, and THD+N, which may make it more suitable for professional audio environments requiring top-level fidelity and performance.
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 18i20 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface share several similarities and differences in their specifications.
Both interfaces support sample rates up to 192 kHz for AD/DA conversion, which allows for high-resolution audio recording and playback. They also share the same bit depth capability, offering up to 24-bit AD/DA conversion. This ensures detailed and accurate audio capture and reproduction in both devices.
In terms of sync sources, the Scarlett 18i20 and the Clarett+ 8Pre both support ADAT, Internal, and S/PDIF. This provides flexibility in synchronizing with other digital audio equipment.
One difference between the two is in the presentation of sample rates. The Clarett+ 8Pre explicitly lists the supported sample rates as 44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz, whereas the Scarlett 18i20 simply indicates support up to 192 kHz. This difference in presentation may reflect a more detailed specification listing for the Clarett+ 8Pre, though both interfaces ultimately offer the same maximum sample rate.
Both devices do not feature sample rate conversion, meaning they do not offer the capability to change the sample rate of an audio signal in real-time while maintaining its quality.
In summary, the Focusrite Scarlett 18i20 and the Focusrite Clarett+ 8Pre are closely matched in their core specifications, with both offering up to 192 kHz sample rates, 24-bit depth, and multiple sync sources. The Clarett+ 8Pre provides a more detailed listing of its supported sample rates, but otherwise, the two interfaces are very similar in terms of these key features.
Audio Storage & Playback
Memory Card Slot
The Focusrite Scarlett 18i20 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface both share the similarity of not having a memory card slot. This feature is absent in both models, meaning neither can store or transfer data directly via memory cards.
In terms of connectivity and form factor, both interfaces utilize USB Type-C connections, ensuring high-speed, low-latency audio transfer to and from your computer. The Scarlett 18i20 is part of the third generation of Focusrite's popular Scarlett series, known for its affordability and solid performance for home studios and semi-professional environments. The Clarett+ 8Pre, on the other hand, is part of the Clarett+ range, which is designed with more advanced users in mind, offering superior preamps and conversion quality, making it a strong contender for professional studios.
Both units offer extensive I/O capabilities, with the Scarlett 18i20 providing 18 inputs and 20 outputs, and the Clarett+ 8Pre also offering 18 inputs and 20 outputs. This extensive range of connectivity options makes both interfaces suitable for multi-track recording scenarios, such as band recordings or complex studio setups.
When choosing between the two, potential buyers should consider their specific needs regarding preamp quality, overall build, and target use-case scenarios, as both units lack a memory card slot but excel in their respective tiers of audio production equipment.
Compatibility
OS Compatibility
macOS 10.12
macOS 10.13
macOS 10.14
macOS 10.15
macOS 11
Windows 7 or Later
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
The Focusrite Scarlett 18i20 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface both offer comprehensive solutions for audio and MIDI interfacing but differ in several key specifications.
OS Compatibility and Mobile Device Support: The Scarlett 18i20 is compatible with macOS versions 10.12 through 10.15 and macOS 11, as well as Windows 7 or later. It also supports iPadOS, making it a versatile choice for users who may want to integrate it with an iPad. On the other hand, the Clarett+ 8Pre supports macOS 10.11 or later and macOS 11, in addition to Windows 7 or later, but lacks specific mobile device compatibility.
Included Software and Required Hardware: The Scarlett 18i20 does not come with bundled software but requires an available USB 2.0 port and the included USB cable for connectivity. An internet connection is necessary for downloading software and drivers. Similarly, the Clarett+ 8Pre also does not include software and requires an available USB 2.0, USB 3.0/3.1/3.2 Gen 1, or USB-C port along with the included USB cable. An internet connection is needed for registration and software/driver downloads.
In summary, both interfaces support a broad range of macOS and Windows operating systems. However, the Scarlett 18i20 has the added advantage of iPadOS compatibility, making it suitable for mobile device integration. The Clarett+ 8Pre offers more flexibility in terms of the types of USB ports it can connect to, accommodating USB 2.0, USB 3.0, and USB-C. Neither model comes with included software, and both require an internet connection for essential downloads and registration.
Power
Power Requirements
AC Input AC Input
AC Input Power
100 to 240 VAC, 50 / 60 Hz Universal:
100 to 240 VAC, 50 / 60 Hz
The Focusrite Scarlett 18i20 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface both feature AC input power requirements that cater to a wide range of global voltages, specifically 100 to 240 VAC at 50/60 Hz. This ensures compatibility with power standards across different regions, making both devices versatile for international use.
In terms of power consumption, the Focusrite Scarlett 18i20 (3rd Generation) specifies a power consumption of 30 W. This detail indicates the amount of electrical power the device requires to operate and can be a relevant factor for users concerned with energy efficiency or managing multiple devices in a studio environment. On the other hand, the Focusrite Clarett+ 8Pre does not explicitly list its power consumption in the provided specifications, leaving a gap in direct comparison in this regard.
Overall, both interfaces support universal AC input power, accommodating a range of 100 to 240 VAC at 50/60 Hz, but the Scarlett 18i20 provides an explicit power consumption figure of 30 W, whereas the Clarett+ 8Pre does not specify this detail.
Physical
Rackmount Size
1 RU (with Included Hardware) 1 RU
Dimensions
19 x 10.23 x 1.83" / 48.3 x 25.98 x 4.65 cm 19 x 11.5 x 1.7" / 48.3 x 29.2 x 4.3 cm
Weight
7.2 lb / 3.3 kg 9.0 lb / 4.1 kg
The Focusrite Scarlett 18i20 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface both offer robust features suitable for professional audio recording and production, but they differ slightly in their specifications.
For the Focusrite Scarlett 18i20 (3rd Generation), it is designed to fit into a 1 RU rackmount size and comes with included hardware for mounting. Its dimensions are 19 x 10.23 x 1.83 inches (48.3 x 25.98 x 4.65 cm), making it a relatively compact unit. The weight of the Scarlett 18i20 is 7.2 lbs (3.3 kg), which is lighter compared to its Clarett+ counterpart.
On the other hand, the Focusrite Clarett+ 8Pre also fits into a 1 RU rackmount size but has slightly larger dimensions of 19 x 11.5 x 1.7 inches (48.3 x 29.2 x 4.3 cm). This makes it a bit deeper than the Scarlett 18i20. The Clarett+ 8Pre is also heavier, weighing in at 9.0 lbs (4.1 kg).
In summary, while both interfaces are designed for rackmount use and share similar dimensions in terms of width and height, the Clarett+ 8Pre is larger in depth and heavier than the Scarlett 18i20. These differences might influence the choice depending on the specific needs and space constraints of the user.
Packaging Info
Package Weight
9.8 lb 11.5 lb
Box Dimensions (LxWxH)
23.7 x 12.8 x 3.5" 23.8 x 13.7 x 3.5"
The Focusrite Scarlett 18i20 USB-C Audio/MIDI Interface (3rd Generation) and the Focusrite Clarett+ 8Pre Rackmount 18x20 USB Type-C Audio/MIDI Interface differ in terms of package weight and box dimensions.
The Focusrite Scarlett 18i20 3rd Generation has a package weight of 9.8 lb and its box dimensions are 23.7 x 12.8 x 3.5 inches.
On the other hand, the Focusrite Clarett+ 8Pre Rackmount 18x20 has a package weight of 11.5 lb and its box dimensions are 23.8 x 13.7 x 3.5 inches.
The Clarett+ 8Pre is slightly heavier and comes in a marginally larger box compared to the Scarlett 18i20 3rd Generation.
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