Solid State Logic SSL2 Plus MKII USB Audio Interface

SSL 2+ MKII USB-C Audio Interface

Elevated Performance for Modern Production

The original SSL 2+ set a new standard for desktop interfaces, delivering professional SSL sound in a compact form. The new SSL 2+ MKII takes that legacy further with upgraded converters, improved headphone amps, expanded dynamic range, and enhanced workflow features for musicians, producers, engineers, podcasters, and content creators. Designed with SSL’s engineering heritage, it delivers class-leading audio quality, intuitive operation, and professional-grade reliability.

Highlights

• 2 x SSL-Designed Analogue Mic Preamps
  Huge 64 dB gain range, ultra-low noise, and input modes for Mic, Line, and Instrument.

• Legacy 4K Analogue Enhancement
  Adds classic SSL 4000-series harmonic color and high-end presence.

• Next-Gen 32-bit / 192 kHz Converters
  Extreme clarity, precision, and detail at all dynamic levels.

• Independent High-Current Headphone Outputs
  Re-engineered amps delivering 119.5 dB dynamic range.

• 4 x Balanced DC-Coupled TRS Outputs
  Professional monitoring, outboard routing, and CV control for synths.

• Hi-Z Instrument Inputs
  Directly record guitars, bass, and other instruments with clarity.

• MIDI I/O + Stereo Loopback
  Ideal for creators, streamers, and hybrid producers.

• USB-C Bus Powered
  Fully portable and ready for Mac/PC.

• SSL Production Pack Included
  A premium software bundle worth over $1100.

Detailed Overview

Class-Leading Mic Preamps

Equipped with two SSL-designed mic preamps delivering 64 dB gain, 116.5 dB dynamic range, and -130.5 dBu EIN, the MKII provides pristine transparency for vocals and instruments. Each input supports Mic, Line, and Instrument (DI) modes for versatile studio use.

Professional-Grade Outputs

Four balanced TRS outputs provide 120 dB dynamic range, enabling ultra-clean monitor playback, routing to outboard gear, or sending CV signals to modular synths. All outputs are DC-coupled for advanced workflows.

Dual Independent Headphone Amps

The redesigned headphone section uses high-current NJM amplifiers capable of driving any studio headphones with exceptional accuracy.

• Dynamic Range: 119.5 dB

• Independent mixes for engineer & performer

• Front-panel access for convenience

Legacy 4K — SSL’s Iconic Analogue Mojo

Inspired by the legendary SSL 4000 (4K) consoles, the Legacy 4K circuit adds:

• Subtle, musical harmonic enhancement

• A forward, airy high-frequency boost
  This produces the signature SSL presence and character heard on countless hit records.

Connectivity & I/O

Front Panel:

• 2 x Auto-detect Instrument (DI) inputs

• 2 x Independent headphone outputs

Rear Panel:

• 2 x Neutrik® XLR Combo Mic/Line inputs

• 4 x Balanced TRS outputs

• MIDI In/Out (5-pin DIN)

• USB-C port (USB-bus powered)

Next-Generation Conversion

The MKII uses upgraded 32-bit / 192 kHz converters, delivering:

• Exceptional low-level detail

• Punchier transients

• More accurate monitoring

• Fuller stereo image
  Whether recording vocals, synths, or streaming live, the converter upgrade provides a noticeable improvement in clarity and definition.

For Content Creators

The SSL 2+ MKII is excellent for podcasts, streaming, and online performances.

• Clean preamps for speech and voiceover

• Built-in stereo loopback for system audio or online guests

• Reliable driver support for Mac and Windows

For Music Producers

With dual headphone outs, premium converters, and SSL-grade preamps, the MKII is built for modern music production. Adding the SSL Production Pack provides all the instruments, plug-ins, and tools needed for a full studio workflow.

Key Features

• 2-In / 4-Out USB-C Audio Interface

• Next-Gen 32-bit / 192 kHz Converters

• 2 SSL Mic Preamps w/ HPF, Line & DI Modes

• Legacy 4K Analogue Enhancement Circuit

• Dual Independent Headphone Outputs

• 4 Balanced TRS DC-Coupled Outputs

• MIDI I/O + Stereo Loopback

• Professional Components: Neutrik®, Alps®, NJM

• USB 2.0 Bus Powered

• Portable, Robust SSL Build Quality

Technical Specifications

System Requirements

Mac: macOS 12+ (Class-Compliant, Plug-and-Play)
Windows: Windows 10, 11, and Windows 11 ARM (ASIO/WDM driver included)

Connectivity

• USB 2.0 Type-C (C-to-C and C-to-A cables included)

Mic Preamps

• EIN: -130.5 dBu A-weighted

• Gain Range: 64 dB

• Dynamic Range: 116.5 dB A-weighted

Instrument Inputs

• Dynamic Range: 116 dB A-weighted

• Max Input Level: +15 dBu

Line Inputs

• Dynamic Range: 117 dB A-weighted

• Max Input Level: +24 dBu

Balanced Outputs

• Dynamic Range: 120 dB A-weighted

• Max Output Level: +14.5 dBu

Headphone Outputs

• Dynamic Range: 119.5 dB A-weighted

• Max Output: +13 dBu