Solid State Logic (SSL) has officially unveiled its new Alpha 8 audio interface expander, which was announced at NAMM 2025. The device combines 8 channels of analog-to-digital and digital-to-analog conversion and can operate as a USB interface with an 18-in, 18-out configuration. The new product is a great match for the recently released SSL 18 interface, and can also expand the capabilities of any interface that supports ADAT or S/PDIF.
Professional audio from SSL is now even more affordable
The Alpha 8 features state-of-the-art 32-bit converters with sampling rates up to 192 kHz, providing SSL’s signature sound, high accuracy and stable operation. The company claims that the device has a huge dynamic range, ultra-low harmonic distortion (THD+N), minimal crosstalk and an extremely low noise floor. All analog inputs and outputs operate at line level, making the Alpha 8 an ideal solution for advanced studios with external analog equipment, synthesizers, drum machines and other sound sources.
Flexible routing and full integration
Each of the Alpha 8’s analog channels can be individually set to +9, +18, +20, or +24 dBu levels, making it easy to connect vintage synths, mixers, 500-series modules, and other professional gear. ADAT, S/PDIF, and Word Clock are available digitally, and each can act as a master clock source. An internal clock is also provided for stand-alone operation.
The unit can be used in a variety of ways: as a bidirectional converter between analog and digital protocols, as a full-fledged 18-in/18-out USB interface, or as a combination of these options.
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Key Features of SSL Alpha 8
- 32-bit/192 kHz audio conversion.
- Outstanding dynamic range, THD+N, and crosstalk.
- 8 balanced line inputs and outputs.
- 10 digital channels: 8 via ADAT, 2 via S/PDIF.
- Flexible routing architecture.
- A full-fledged USB audio interface with 18 inputs and 18 outputs.
- High-power headphone output with the ability to listen to any channel.
- Front panel input and output level indicators.
- Word Clock input and output with the ability to terminate the chain.
- The ability to synchronize with the internal clock, ADAT, S/PDIF, or Word Clock.
Software included
Buyers of the SSL Alpha 8 receive the SSL Production Pack, which includes virtual instruments, plug-ins, sound libraries and even a DAW (including Harrison Mixbus 10). The total value of the software is over $1,100. An extended trial of the Complete Access subscription is also provided, which includes all plug-ins from SSL, Slate Digital and Harrison Audio.
“With the release of the Alpha 8 and the new SSL 18 interface, we continue to develop our line of professional solutions for the modern studio. Alpha 8 offers a rich choice of analogue and digital interfaces, allowing users to expand their capabilities without losing the signature SSL sound.” – Andy Jackson, Senior Product Manager (Studio), SSL
SSL Alpha 8 is available now. The recommended retail price is £699 (inc. VAT) / €699.
