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Focusrite Scarlett 18i20 4th Gen USB Audio Interface vs Kellards Focusrite Scarlett Solo Studio USB-C Audio

Updated August 2026 — Focusrite Scarlett 18i20 4th Gen USB Audio Interface wins on inputs and outputs, Kellards Focusrite Scarlett Solo Studio USB-C Audio wins on price and portability.

The Focusrite Scarlett 18i20 is a superior choice for professional users needing extensive features, while the Scarlett Solo Studio is ideal for beginners and solo artists.

Why Focusrite Scarlett 18i20 4th Gen USB Audio Interface is better

Inputs/Outputs

Scarlett 18i20 has 18 inputs and 20 outputs.

Audio Quality

Scarlett 18i20 offers a dynamic range of 122dB.

Included Software

Scarlett 18i20 includes a more comprehensive software package.

Why Kellards Focusrite Scarlett Solo Studio USB-C Audio is better

Price

Scarlett Solo Studio is significantly cheaper.

Portability

Scarlett Solo Studio is more compact and easier to transport.

User-Friendliness

Scarlett Solo Studio is simpler for beginners.

Overall score

Focusrite Scarlett 18i20 4th Gen USB Audio Interface
85
Kellards Focusrite Scarlett Solo Studio USB-C Audio
70

Specifications

SpecFocusrite Scarlett 18i20 4th Gen USB Audio InterfaceKellards Focusrite Scarlett Solo Studio USB-C Audio
Dynamic Range122dB120dB
Sample Rate24-bit / 192kHz24-bit / 192kHz
Inputs/Outputs18/202/2
Included SoftwarePro Tools, AbletonAbleton, Pro Tools
Preamp Gain69dB60dB

Dimension comparison

Focusrite Scarlett 18i20 4th Gen USB Audio InterfaceKellards Focusrite Scarlett Solo Studio USB-C Audio

Overview

When comparing the Focusrite Scarlett 18i20 and the Focusrite Scarlett Solo Studio, key differences emerge that cater to distinct user needs. The Scarlett 18i20 is priced at $749.99, making it a premium option for serious music producers, while the Scarlett Solo Studio is more budget-friendly at $299.99, designed for solo musicians and podcasters. This article explores their features and capabilities to help you choose the right audio interface for your recording needs.

Inputs and Outputs

The Focusrite Scarlett 18i20 boasts an impressive 18 inputs and 20 outputs, including eight mic preamps, Hi-Z, line inputs, and digital connections like ADAT and S/PDIF. This extensive connectivity supports complex multitrack recording setups, making it ideal for larger recording projects. On the other hand, the Scarlett Solo Studio features a simpler 2-in/2-out configuration, designed for solo artists who require only one microphone and one instrument input. This makes the Solo more straightforward for users who don’t need extensive routing capabilities.

Audio Quality

The Scarlett 18i20 provides high-fidelity recordings with 24-bit, 192kHz converters that deliver a dynamic range of 122dB, ensuring detailed and professional-sounding audio. This audio quality is essential for serious music production and podcasting. In contrast, the Scarlett Solo Studio also offers high-quality 24-bit, 192kHz AD/DA conversion but with a slightly lower dynamic range of 120dB. While both interfaces deliver excellent audio quality, the 18i20’s superior dynamic range may benefit users looking for the utmost clarity in their recordings.

User-Friendliness

Both interfaces are designed with user-friendliness in mind, but they cater to different users. The Scarlett Solo Studio is particularly appealing for beginners due to its simple setup and operation, allowing users to start recording almost immediately. It features zero-latency direct monitoring and a quick connection to Mac, Windows, or iPad devices. Conversely, the Scarlett 18i20, while also user-friendly, includes professional workflow tools such as Auto Gain and Clip Safe, which help manage levels automatically and prevent clipping. This makes it more suitable for advanced users who require more control over their recording process.

Included Software

The Scarlett 18i20 comes with a comprehensive software package that includes Pro Tools Intro+, Ableton Live Lite, Cubase LE, and Hitmaker Expansion. This suite offers essential effects and powerful software instruments, enhancing its value for music production. In contrast, the Scarlett Solo Studio also includes Ableton and Pro Tools, but it focuses more on the essentials for solo artists. While both interfaces provide valuable software, the 18i20’s offerings are more extensive, catering to users who need a broader range of tools for complex projects.

Portability

Portability is a significant factor for many users, especially musicians on the go. The Scarlett Solo Studio excels in this area with its compact design, making it easy to transport to gigs or recording sessions. Its USB-C connectivity allows for quick plug-and-play use with laptops and other devices. The Scarlett 18i20, while still manageable, is bulkier due to its larger input and output capabilities. For users who prioritize portability, the Scarlett Solo Studio is the more convenient choice.

Price Comparison

The price difference between the two interfaces is substantial, with the Scarlett Solo Studio being about 60% cheaper at $299.99 compared to the $749.99 price tag of the Scarlett 18i20. This difference makes the Solo an attractive option for budget-conscious musicians and podcasters. However, the investment in the Scarlett 18i20 may be justified for users who require its advanced features and extensive connectivity, particularly in professional recording environments.

Bestselling Status

The Scarlett 18i20 has a bestseller rank of 2965, indicating its popularity among professional users and studios. Its high rank reflects its reputation for quality and reliability in demanding recording situations. The Scarlett Solo Studio, with a rank of 6745, also demonstrates a solid following, especially among entry-level users. While both products are well-regarded, the higher sales rank of the 18i20 underscores its appeal to serious music producers.

Which should you buy?

Choosing between the Focusrite Scarlett 18i20 and the Focusrite Scarlett Solo Studio ultimately depends on your specific recording needs and budget. If you are a professional musician or producer requiring extensive inputs, advanced features, and high audio fidelity, the Scarlett 18i20 is worth the investment at $749.99. However, if you are a solo artist, podcaster, or simply need a portable and user-friendly interface for basic recording, the Scarlett Solo Studio at $299.99 offers excellent value and performance without the complexity.