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Focusrite Scarlett 18i20 4th Gen USB Audio Interface vs Solid State Logic SSL 2 MKII - 2x2 USB Audio Interface

Updated August 2026 — Focusrite Scarlett 18i20 4th Gen USB Audio Interface wins on inputs and outputs, Solid State Logic SSL 2 MKII - 2x2 USB Audio Interface wins on price and portability.

The Focusrite Scarlett 18i20 offers superior connectivity and audio quality, making it ideal for professional use, while the SSL 2 MKII is a budget-friendly choice for beginners.

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

Connectivity

Scarlett has 18 inputs and 20 outputs compared to SSL's 4.

Audio Quality

Scarlett features 24-bit/192kHz converters with 122dB dynamic range.

Software Bundle

Scarlett includes Pro Tools Intro+ and more software.

Why Solid State Logic SSL 2 MKII - 2x2 USB Audio Interface is better

Price

SSL is priced at $229.99, significantly lower than Scarlett.

Portability

SSL is more compact and bus-powered.

Simplicity

SSL offers straightforward functionality for beginners.

Overall score

Focusrite Scarlett 18i20 4th Gen USB Audio Interface
88
Solid State Logic SSL 2 MKII - 2x2 USB Audio Interface
72

Specifications

SpecFocusrite Scarlett 18i20 4th Gen USB Audio InterfaceSolid State Logic SSL 2 MKII - 2x2 USB Audio Interface
Mic Preamps82
AD/DA Conversion24-bit/192kHz32-bit/192kHz
Dynamic Range122dBNot specified
MIDI I/OYesYes
Zero-Latency MonitoringYesYes

Dimension comparison

Focusrite Scarlett 18i20 4th Gen USB Audio InterfaceSolid State Logic SSL 2 MKII - 2x2 USB Audio Interface

Overview of the Focusrite Scarlett 18i20

The Focusrite Scarlett 18i20 is designed for serious music production, offering extensive connectivity and high-quality audio performance. Priced at $749.99, it sits at the higher end of the market, reflecting its capabilities. This audio interface features 18 inputs and 20 outputs, making it suitable for complex recording setups, such as multitrack recording and podcasting.

Equipped with eight mic preamps and advanced conversion technology from Focusrite’s RedNet range, the Scarlett 18i20 aims to deliver professional-grade sound. It also includes software tools like Pro Tools Intro+ and Ableton Live Lite, which enhance its value for musicians and producers. Its versatility makes it an appealing option for project studios that require robust performance.

Overview of the Solid State Logic SSL 2 MKII

The Solid State Logic SSL 2 MKII offers a more compact and budget-friendly option in the realm of audio interfaces, priced at $229.99. This 2x2 interface features two XLR mic preamps and supports both line and Hi-Z inputs, making it ideal for musicians and podcasters who need straightforward functionality without compromising on quality.

With 32-bit / 192 kHz AD/DA converters, the SSL 2 MKII promises high-resolution audio capture. Additionally, it includes features like zero-latency monitoring and MIDI I/O, which are beneficial for real-time recording situations. Its price point, significantly lower than that of the Focusrite Scarlett 18i20, makes it an attractive choice for those who may be starting their audio production journey.

Connectivity and Inputs

When it comes to connectivity, the Focusrite Scarlett 18i20 clearly outshines the Solid State Logic SSL 2 MKII. The Scarlett boasts a total of 18 inputs and 20 outputs, including eight mic preamps, line inputs, and digital I/O options like ADAT and S/PDIF. This extensive array of inputs allows for versatile recording setups, making it ideal for larger projects and collaborative sessions.

In contrast, the SSL 2 MKII offers a more straightforward configuration with just two XLR mic preamps and two line/Hi-Z inputs. While it does provide MIDI I/O, its limited input options may restrict users who require more connectivity for multiple instruments or microphones. Thus, for those needing extensive routing capabilities, the Scarlett 18i20 is the clear winner.

Audio Quality

Audio quality is a crucial factor in choosing an audio interface, and the Focusrite Scarlett 18i20 excels with its 24-bit, 192 kHz converters that deliver a dynamic range of 122 dB. This high fidelity ensures that recordings are rich in detail and clarity, making it suitable for professional studio environments.

The SSL 2 MKII, while also offering 32-bit / 192 kHz conversion, includes Legacy 4K analog enhancement, which adds character to recordings. However, the overall dynamic range is not specified, leaving some uncertainty about how it compares to the Scarlett. For users prioritizing top-tier audio fidelity, the Scarlett 18i20 is likely the better option.

Software and Workflow Enhancements

In terms of software offerings, the Focusrite Scarlett 18i20 includes a robust suite of programs such as Pro Tools Intro+, Ableton Live Lite, and Cubase LE, along with Hitmaker Expansion for effects and instruments. This complete package not only enhances the user experience but also provides essential tools for effective music production.

On the other hand, the SSL 2 MKII comes bundled with the SSL Production Pack software, which is beneficial but less extensive than what the Scarlett offers. For users who want an all-in-one solution right out of the box, the Scarlett 18i20's software offerings provide significant added value, making it a more comprehensive choice for producers.

Design and Usability

The design and usability of an audio interface can greatly impact the user experience. The Focusrite Scarlett 18i20 is designed for professional setups, featuring a sturdy build and intuitive controls that facilitate ease of use. Its Focusrite Control 2 software allows for simple routing and management of complex audio setups, making it particularly user-friendly for those managing multiple inputs.

In contrast, the SSL 2 MKII is more portable and geared towards simplicity, which can be appealing for users needing a quick setup. Its bus-powered design allows for ease of transport, but it may not provide the same level of control for intricate studio environments. Users seeking a robust and flexible interface might lean towards the Scarlett 18i20 for its superior design and user interface.

Price Comparison

There is a significant price difference between the Focusrite Scarlett 18i20 and the Solid State Logic SSL 2 MKII. The Scarlett is priced at $749.99, while the SSL 2 MKII is available for $229.99, making the SSL approximately 69% cheaper. This price gap reflects the differing target markets; the Scarlett is aimed at professional studios, while the SSL caters to home users and beginners.

For those on a budget or just starting their audio journey, the SSL 2 MKII offers great value without sacrificing essential features. However, for users needing extensive input options and higher audio fidelity, the investment in the Scarlett 18i20 might be justified.

Which should you buy?

Deciding between the Focusrite Scarlett 18i20 and the Solid State Logic SSL 2 MKII ultimately depends on your specific needs and budget. If you're an experienced producer or musician requiring extensive connectivity, superior audio quality, and a rich software package, the Scarlett 18i20 is the clear choice despite its higher price. Conversely, if you're a beginner or a podcaster seeking a straightforward, budget-friendly solution, the SSL 2 MKII is an excellent option that meets essential needs without breaking the bank.