Solid State Logic SSL 1 – USB Audio Interface

Product Overview

The Solid State Logic SSL 1 is a 2-in/2-out USB-C audio interface designed for music producers, musicians, vocalists, content creators, and professionals working in mobile recording environments. Built on SSL’s professional studio engineering expertise, it combines a high-quality analogue microphone preamp, 32-bit / 192 kHz AD/DA converters, and exceptionally low-noise performance.

The SSL-designed microphone preamp features a wide 63 dB gain range, +48 V phantom power, a High-Pass Filter for reducing unwanted low-frequency noise, and Legacy 4K analogue enhancement inspired by the classic SSL 4000 Series consoles.

Its compact, robust construction makes the SSL 1 suitable for home studios and portable recording setups alike. It can be powered directly via USB bus power or through the additional 5 V USB connection using an external power source. Compatibility with Mac, Windows, and mobile devices supporting USB Audio Class 2.0 (UAC2) makes it a versatile solution for recording vocals, guitars, bass, synthesizers, and other audio sources.

Portable 2-In/2-Out Studio Quality Sound+1

Features

• 2-in / 2-out configuration: Professional audio recording and playback via USB-C connectivity.
• SSL-designed microphone preamp: Low-noise performance with a 63 dB gain range.
• +48 V phantom power: Power supply for compatible condenser microphones.
• Legacy 4K analogue enhancement: Tonal coloration and harmonic enhancement inspired by SSL 4000 Series consoles.
• High-Pass Filter: Reduces unwanted low-frequency noise and rumble.
• Instrument DI / Line input: Connects electric guitars, bass guitars, synthesizers, drum machines, and line-level equipment.
• 32-bit / 192 kHz AD/DA converters: High-precision digital audio conversion.
• Balanced monitor outputs: Professional connectivity for studio monitors.
• High-current headphone output: Detailed and powerful headphone monitoring.
• Monitor Mix function: Blends low-latency input monitoring with computer playback.
• 3 stereo Loopback channels: Virtual audio routing for podcasting, live streaming, and digital content creation.
• DC-coupled outputs: Enables operation with synthesizers and modular systems supporting CV signals.
• Flexible power options: USB bus-powered operation and an additional 5 V external power input.
• SSL Production Pack: A software and plug-in bundle for music production.
• Robust construction: Compact enclosure built with quality components.
• Operating system compatibility: macOS, Windows, and mobile devices supporting USB Audio Class 2.0.

Technical Specifications

General

• Product type: USB audio interface
• Audio input/output configuration: 2 inputs / 2 outputs
• USB interface: USB 2.0 Type-C
• AD/DA converters: 32-bit / 192 kHz
• Internal clock source: Internal
• Supported sample rates: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz
• Low-latency Monitor Mix input-to-output latency: Less than 1 ms
• Round-trip latency in REAPER at 96 kHz / 32-sample buffer:
• Windows: Less than 3.5 ms (Safe Mode off)
• Mac: Less than 5.9 ms

Microphone Input

• Frequency response: ±0.03 dB
• Dynamic range (A-weighted): 113 dB
• THD+N at 1 kHz: −100 dB / less than 0.001% at −8 dBFS
• Equivalent input noise (EIN, A-weighted): −130.5 dBu
• Maximum input level: +10 dBu
• Gain range: 63 dB
• Input impedance: 1.2 kΩ

Line Input

• Frequency response: ±0.02 dB
• Dynamic range (A-weighted): 114 dB
• THD+N at 1 kHz: −108 dB / less than 0.0004% at −1 dBFS
• Maximum input level: +24.5 dBu
• Gain range: 34 dB
• Input impedance: 10 kΩ

Instrument Input

• Frequency response: ±0.02 dB
• Dynamic range (A-weighted): 114 dB
• THD+N at 1 kHz: −108 dB / less than 0.0004% at −1 dBFS
• Maximum input level: +14 dBu
• Gain range: 34 dB
• Input impedance: 1 MΩ

Monitor Outputs (Balanced)

• Frequency response: ±0.02 dB
• Dynamic range (A-weighted): Greater than 116 dB
• THD+N at 1 kHz: −108 dB / less than 0.0004% at −1 dBFS
• Maximum output level: +14 dBu
• Output impedance: 300 Ω

Headphone Output

• Frequency response: ±0.015 dB
• Dynamic range: 116 dB
• THD+N at 1 kHz: −106 dB / less than 0.0005% at −1 dBFS
• Maximum output level: +11 dBu
• Output impedance: Less than 1 Ω

Analogue Inputs and Controls

• Microphone input: 1 × female XLR on the rear panel
• Instrument / Line input: 1 × 6.35 mm TRS/TS jack on the rear panel
• Input gain control: Front panel
• Phantom power control: Front panel
• 4K analogue enhancement control: Front panel
• High-Pass Filter control: Front panel
• Line-mode switching: Front panel

Analogue Outputs and Monitoring

• Monitor outputs: 2 × 6.35 mm balanced TRS jacks, rear panel
• Stereo headphone output: 1 × 6.35 mm TRS jack, front panel
• Monitor level control: Front panel
• Monitor Mix control: Front panel
• Headphone level control: Front panel
• DC-coupled outputs: Supported
• CV signal output: ±5 V

Rear Panel Connections

• USB 2.0 Type-C audio connection: 1 ×
• External power input: 1 × 5 V USB Type-C
• Security slot: 1 × Kensington K-Slot

Front Panel LED Indicators

• Input metering per channel: 3 green, 1 amber, and 1 red LED
• +48 V indicator: Red
• 4K indicator: Amber
• HPF indicator: Green
• MIX indicator: Green
• Power indicator: 1 green/amber LED

Compatibility and System Requirements

• macOS 12 and above: Class-compliant, plug-and-play
• USB Audio Class 2.0 mobile devices, including iOS: Plug-and-play
• Windows 11 and Windows 11 ARM: Installation of the included ASIO/WDM driver required

Physical Specifications

• Width: 196.8 mm / 7.7 inches
• Height: 73.6 mm / 2.9 inches
• Depth: 130.4 mm / 5.1 inches
• Weight: 0.64 kg / 1.4 lbs

Packaging Dimensions and Weight

• Width: 250 mm / 9.8 inches
• Height: 185 mm / 7.3 inches
• Depth: 105 mm / 4.1 inches
• Boxed weight: 0.94 kg / 2.1 lbs