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Kellards Focusrite Scarlett 4i4 USB-C Audio/MIDI Interface vs Solid State Logic SSL 2 Plus MKII USB Audio

Updated August 2026 — Solid State Logic SSL 2 Plus MKII USB Audio leads on connectivity and software bundle.

The Focusrite Scarlett 4i4 offers a comprehensive bundle for beginners, while the SSL 2 Plus MKII excels in audio quality for professionals.

Why Kellards Focusrite Scarlett 4i4 USB-C Audio/MIDI Interface is better

Bundle Value

Includes headphones and pop filter

User-Friendly

Auto Gain and Clip Safe features

Connectivity

More line inputs and outputs

Why Solid State Logic SSL 2 Plus MKII USB Audio is better

Audio Quality

Superior 32-bit / 192 kHz AD/DA conversion

Professional Design

Legacy 4K analog enhancement

Software Bundle

Includes SSL Production Pack

Overall score

Kellards Focusrite Scarlett 4i4 USB-C Audio/MIDI Interface
85
Solid State Logic SSL 2 Plus MKII USB Audio
90

Specifications

SpecKellards Focusrite Scarlett 4i4 USB-C Audio/MIDI InterfaceSolid State Logic SSL 2 Plus MKII USB Audio
Mic Preamps22
Hi-Z Inputs22
AD/DA Conversion24-bit / 192 kHz32-bit / 192 kHz
MIDI I/OYesYes
LoopbackYesYes

Dimension comparison

Kellards Focusrite Scarlett 4i4 USB-C Audio/MIDI InterfaceSolid State Logic SSL 2 Plus MKII USB Audio

Overview of the Focusrite Scarlett 4i4 and SSL 2 Plus MKII

The Focusrite Scarlett 4i4 USB-C Audio/MIDI Interface is priced at $319.99, while the Solid State Logic SSL 2 Plus MKII is slightly cheaper at $299.99, making it about 6% less expensive. Both audio interfaces target musicians, podcasters, and content creators, offering a range of features designed for high-quality audio capture. While the Focusrite is a bundle that includes headphones and a pop filter, the SSL 2 Plus MKII focuses on delivering a robust audio experience with its legacy components.

Build Quality and Design

Both the Focusrite Scarlett 4i4 and SSL 2 Plus MKII boast durable designs suitable for studio and on-the-go use. The Scarlett 4i4 features a compact layout that integrates easily into any setup, while the SSL 2 Plus MKII, with its sleek, professional aesthetic, emphasizes its heritage in the audio production industry. The SSL model is known for its user-friendly design, making it accessible for both beginners and seasoned pros. However, the addition of headphones and accessories in the Focusrite bundle offers extra value for those setting up a complete home studio.

Audio Performance

When it comes to audio performance, the Focusrite Scarlett 4i4 stands out with its impressive 120 dB dynamic range, utilizing converters found in professional studios. Conversely, the SSL 2 Plus MKII also offers high-quality 32-bit / 192 kHz AD/DA conversion, providing exceptional sound clarity. Both interfaces feature advanced mic preamps; however, the Scarlett's Auto Gain feature and Clip Safe technology ensure that recording levels are consistently optimal, which is particularly beneficial for users who may be less experienced with audio recording.

Connectivity Options

Connectivity is a crucial aspect of any audio interface. The Focusrite Scarlett 4i4 offers an extensive range of connections, including two Scarlett mic preamps, two Hi-Z instrument inputs, four line outputs, and traditional MIDI I/O. This extensive connectivity allows users to connect multiple instruments and MIDI devices simultaneously. The SSL 2 Plus MKII, while also offering MIDI I/O, has only two mic preamps and two Hi-Z inputs. However, it does provide four balanced outputs, which can be advantageous for routing audio to multiple destinations.

Software Bundles

Both audio interfaces come with software bundles that enhance their value. The Focusrite Scarlett 4i4 includes Pro Tools Artist, Ableton Live Lite, and a range of plugins through the Hitmaker Expansion, such as Auto-Tune Access. This is an excellent package for those looking to dive into music production or podcasting. On the other hand, the SSL 2 Plus MKII includes the SSL Production Pack, which provides a suite of professional-quality plugins tailored for music production. While both bundles are impressive, the Focusrite package may be more appealing for beginners due to its inclusion of more diverse tools.

Target Users

The Focusrite Scarlett 4i4 is designed with musicians and content creators in mind, offering a user-friendly experience that is accessible to beginners. It is particularly suitable for users who may need the added support of features like Auto Gain and Clip Safe. The SSL 2 Plus MKII, however, is aimed more at serious producers and audio engineers who demand high-quality sound and are familiar with professional audio equipment. Its legacy 4K analog enhancement feature appeals to those who appreciate the nuances of classic SSL sound.

Pricing Comparison

The Focusrite Scarlett 4i4 is priced at $319.99, while the SSL 2 Plus MKII is available for $299.99, making it approximately 6% cheaper. This price difference could be a deciding factor for budget-conscious buyers. However, the Focusrite's bundle, which includes studio monitor headphones and a pop filter, may justify the higher price for users looking for a complete setup. Ultimately, the choice may depend on whether the user prioritizes standalone audio performance or additional accessories.

Which should you buy?

Choosing between the Focusrite Scarlett 4i4 and the SSL 2 Plus MKII depends on your specific needs and budget. If you are a beginner looking for an all-in-one solution with valuable accessories, the Focusrite Scarlett 4i4 may be the better option for you. However, if you are a seasoned producer seeking superior audio quality and are comfortable with a slightly steeper learning curve, the SSL 2 Plus MKII offers exceptional performance at a lower price point. Both interfaces have their strengths, so consider what features matter most to your audio production journey.