SSL (Solid State Logic) / ALPHA8 USB Audio Interface/Expander

This audio interface expander features next-generation 32-bit/192 kHz converters and an SSL-quality analog path that achieves a wide dynamic range and an extremely low noise floor, providing high-class audio quality and allowing flexible routing of analog and digital signals.

■USB Audio Interface

■Key Features
・ The ultimate audio interface expander and the perfect partner for the SSL 18.
・ USB audio interface with up to 18 inputs and 18 outputs.
・ Use the ALPHA 8 as a line-in/line-out USB audio interface.
- Record and play back all 8 analog and 10 digital I/O via USB.
・ High-performance, next-generation 32-bit/192kHz conversion.
・ Class-leading dynamic range, THD+N, and crosstalk audio performance.
・ 8 balanced line inputs and outputs.
・ Up to 8 channels of analog to ADAT and ADAT to analog conversion.
- Configurable operating levels for each input and output to optimally match external gear: +24/+20/+18/+9 dBu.
- DC-coupled outputs are ideal for sending control voltages to synthesizers and modular rigs.
10 digital inputs and outputs (8 ADAT channels, 2 S/PDIF channels).
- Up to 2 channels of analog to S/PDIF and S/PDIF to analog conversion.
- Up to 2 channels of S/PDIF to ADAT and ADAT to S/PDIF conversion.
- S/PDIF is available via coaxial or optical connectors.
- Flexible conversion configurations.
- Physical outputs can accommodate a mix of analog, digital, and USB audio signals, providing excellent flexibility.
- High-current front panel headphone reliability check - Audition each individual input or output (or stereo pair).
- Select the optimal setting for your headphones from three settings: standard, high impedance, or high sensitivity.
- Dedicated front panel input/output meters.
- Word clock input/output and input termination switch. Internal clock or clock from ADAT, S/PDIF, or word clock input.

■System Requirements
macOS 13 or later. Class-Compliant, Plug-and-play.
Windows 10, Windows 11: Requires the ASIO/WDM driver provided by SSL.
USB 2.0 Type C connector (main unit).
*As of April 23, 2025.

■SSL Production Pack Included
The SSL18 comes with the SSL Production Pack, a package of effect plug-ins, virtual instruments, sample software, and more, including SSL Vocalstrip2 and Drumstrip. To use it, register your product on the SSL website (English).

■Product Dimensions
・External Dimensions:
・Width: 482.6 mm
・Height: 43.6 mm
・Depth: Including front panel controls and rear panel connectors: 294 mm (11.6 inches)
*Depth: Excluding front panel controls and rear panel connectors: 257.8 mm (10.1 inches)
・Weight: 3.76 kg

＜Box Weight＞
・Width: 630 mm, Height: 100 mm, Depth: 360 mm (14.2 inches), Weight: 5.78 kg