Our rating: 9.1/10

The SSL SSL 2+ is a 2-In/4-Out USB-C audio interface from Solid State Logic, marrying SSL's decades-long experience in the field of analog sound with a fresh, user-friendly design.

With a reputation for high-end mixing consoles, the SSL enters the home studio market with this compact, portable audio interface capable of professional-quality sound.

Now, let's take a closer look at the main features: the good, the bad, and how the SSL 2+ stacks up against other similar products in its price range.

There is a catch, though, before you make that decision. The compact build does pack quite a punch in its audio capabilities, which alone is important to musicians. But is it what you need? Let's find out!

N.B.: We don’t participate in any affiliate programs: the links to the manufacturer’s site are purely to provide more information, with no financial benefit for us. What truly matters to us is your trust.

Key Features

• Inputs/Output: 2 XLR/TRS combo inputs, 4 RCA unbalanced outputs, 2 headphone outputs with independent volume control, MIDI I/O

• SSL-Designed: Preamps: Dual SSL-designed microphone preamps with 48V phantom power (independent per channel)

• 4K Legacy Button: Emulates classic SSL 4000-series console sounds with harmonic enhancement and a high-frequency boost

• High-Quality Conversion: 24-bit / 192 kHz AD/DA converters for pristine audio quality

• Bus-Powered: USB-C powered, requiring no additional power supply

• Monitor Mix Control: Allows for easy monitoring balance between inputs and playback

• SSL Production Pack: ncludes virtual instruments, plug-ins, samples, and DAWs such as Ableton Live Lite and Native Instruments Komplete Start

Design and Build Quality

The SSL 2+ is designed to resemble a mini console, sporting a solid metal faceplate with robust plastic sides that add durability without excessive weight.

The dials are sturdy, with a satisfying feel, allowing for precise adjustments. All connections are located on the back, including the combo inputs, USB-C port, MIDI I/O, and two headphone jacks.

This setup keeps the workspace tidy, albeit making quick cable access slightly less convenient.

Pros and Cons of Design and Build

Pros

• Sturdy build with metal faceplate

• Easy-to-use layout

• Separate 48V phantom power controls

Cons:

• Lack of dedicated mute/dim buttons

• Headphone jacks located on the back

• Limited metering detail with only five stages

Preamps and Sound Quality

The SSL 2+ features dual SSL-designed microphone preamps with 62dB of gain, providing ample headroom and ultra-low noise suitable for professional recordings.

The preamps offer transparent sound without coloration, ideal for vocals, guitars, and instruments.

The 4K Legacy button is a standout feature, adding subtle harmonic distortion and a high-frequency boost inspired by SSL’s iconic 4000-series consoles, making it perfect for adding warmth and character.

Sound Quality Features

• Gain Range: 62 dB

• Frequency Response: Flat and accurate up to 192 kHz

• Dynamic Range: 110.5 dB for inputs, 111.5 dB for outputs

• 4K Legacy Mode: Adds high-frequency boost and subtle distortion for vintage SSL sound

  

Connectivity and Monitoring

The SSL 2+ provides a versatile setup with its two combo inputs supporting both XLR and 1/4” jacks, balanced 1/4” monitor outputs, and an additional four RCA outputs designed for easy integration with DJ setups.

The dual headphone outputs allow for two independent headphone mixes, a valuable feature for collaborative recording.

It also offers MIDI I/O, accommodating older MIDI devices, which can be helpful for musicians integrating synths and drum machines.

Back Panel Connectivity Overview

• USB-C: Bus-powered connection for data and power

• MIDI I/O: For connecting MIDI-compatible devices

• Balanced 1/4” Outputs: Main monitor outputs

• RCA Outputs: Extra outputs for DJs or additional monitors

• Dual Headphone Outputs: Separate headphone mixes for two users

SSL Production Pack Software Bundle

One of the standout additions with the SSL 2+ is the SSL Production Pack, a comprehensive software suite that includes:

• SSL Native Drumstrip and Vocalstrip – Plugins tailored for processing drums and vocals, with flexible controls for mixing and mastering.

• Ableton Live Lite – A popular DAW ideal for live performance and electronic music production.

• Native Instruments Hybrid Keys and Komplete Start – Sample libraries with a wide range of sounds, including keys, drums, bass, and synths.

• Loopcloud Samples – Access to 1.5GB of samples, ideal for adding loops and sound effects to recordings.

These bundled tools provide a robust starting point for both beginners and professionals.

Comparison with Competitors

Among the main competitors of the SLL2+ we have examined:

• Focusrite Scarlett 2i2 (read here our review 2024)

• Universal Audio Volt 2

• PreSonus AudioBox USB 96

Here’s how this interface compares to traditional competing products:

Inputs:

• SSL 2+: 2 combo XLR/TRS

• Focusrite Scarlett 2i2: 2 XLR/TRS

• Universal Audio Volt 2: 2 XLR/TRS

• PreSonus AudioBox USB 96: 2 XLR

Outputs:

• SSL 2+: 4 RCA + 2 Balanced TRS

• Focusrite Scarlett 2i2: 2 Balanced TRS

• Universal Audio Volt 2: 2 Balanced TRS

• PreSonus AudioBox USB 96: 2 Unbalanced

Preamps:

• SSL 2+: SSL-designed with 4K Mode

• Focusrite Scarlett 2i2: Focusrite

• Universal Audio Volt 2: Vintage 610 Preamp Emulation

• PreSonus AudioBox USB 96: PreSonus

MIDI I/O:

• SSL 2+: Yes

• Focusrite Scarlett 2i2: No

• Universal Audio Volt 2: No

• PreSonus AudioBox USB 96: No

Sampling Rate:

• SSL 2+: 192 kHz / 24-bit

• Focusrite Scarlett 2i2: 192 kHz / 24-bit

• Universal Audio Volt 2: 192 kHz / 24-bit

• PreSonus AudioBox USB 96: 96 kHz / 24-bit

Price:

• SSL 2+: $350

• Focusrite Scarlett 2i2: $170

• Universal Audio Volt 2: $300

• PreSonus AudioBox USB 96: $100

User Experience and Practicality

The monitor mix control lets users adjust the balance between live inputs and playback, making it easy to monitor recordings in real-time with minimal latency.

Additionally, the stereo button allows users to switch between a mono or stereo input signal, helpful for tracking single sources like vocals or mono instruments.

However, the lack of detailed metering may require users to rely on DAW software for precise level monitoring.

Loopback functionality, available via a firmware update, allows users to record computer audio directly, making it ideal for podcasters, live streamers, and content creators.

Performance and Use Cases

The SSL 2+ performs exceptionally well for podcasting, recording, and digital content creation due to its high-quality preamps, low noise floor, and flexibility in connectivity.

Its 4K mode provides a unique edge for those seeking a vintage touch to their sound. The device is particularly suitable for musicians, podcasters, and entry-level producers who value sound quality and straightforward usability over additional DSP features.

Final Verdict

The Solid State Logic SSL 2+ is a powerful, high-quality audio interface that bridges SSL’s legacy with the needs of modern home studios.

While it might lack some of the advanced DSP capabilities found in higher-end interfaces, it makes up for it with SSL’s superb analog emulation, pristine preamps, and a comprehensive software bundle. For users prioritizing sound quality, flexibility, and ease of use, the SSL 2+ is an outstanding choice.

Overall Ratings

• Sound quality: 10/10

• Features: 9.1/10

• Value for money: 9/10

• Overall: 9.1/10

What Do Users Think? - Reviews and Feedback

The SSL 2+ has obtained fantastic reviews from nearly 1400 users from a major online selling platform, and from many others. For around $350, the SSL 2+ stands out in its category, blending a high-quality audio interface with legacy SSL analog sound.

Whether for recording music or creating podcasts, it offers stellar sound with the added benefit of analog warmth. While it lacks some of the frills of more expensive interfaces, the SSL 2+ provides an impressive audio experience that appeals to both aspiring and professional creators.

User’s rating: 9.3/10

Are you wondering what tools are indispensable when starting a podcast? Read here!

Still unsure how to choose the best interface, headphones or mics for your podcast? If so, read our guides:

How-to Guide: How to Choose the Best Audio Interface for Podcasting

How to choose the best podcast headphones (2024)

How to Choose the Best Microphone for your Podcast

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