SOLID STATE LOGIC SSLALPHA8 USB-C - Expander ADAT, USB, S/PDIF
RSL SSLALPHA8
USB-C - Expander ADAT, USB, S/PDIF
The ultimate audio interface expander
Building on the renowned Alpha Link range, the ALPHA 8 is a professional-quality 8-in/8-out analog-to-digital and digital-to-analog converter, perfect for expanding your audio interface via ADAT and S/PDIF.
Stock expected from 11/04/25
Availability date: 2025-04-11
More info
You can also configure the ALPHA 8 to simultaneously address all analog and digital inputs and outputs via USB, giving you an 18-in/18-out audio interface. With first-rate conversion, flexible routing and impeccable audio performance, the ALPHA 8 unleashes the full potential of your installation.
No more compromises!
Thanks to its next-generation 32-bit/192 kHz converters, the ALPHA 8 brings SSL-level audio performance to your studio. With enormous dynamic range, surprisingly low THD+N and crosstalk, and exceptionally low noise, the ALPHA 8 offers ideal line level for your external analog processing, samplers, synthesizers and drum machines. No more compromises, capture your sound with the quality it deserves.
Input dynamic range: 120 dB
Output dynamic range: 123 dB
Input THD+N: -110 dB
Output THD+N: -108 dB
Analog flexibility and digital optimization
The ALPHA 8 is capable of many different routing configurations to meet your specific needs and enable you to make the most of all its digital and analog inputs and outputs. Whether you need a simple two-way analog <> ADAT/SPDIF converter, an aggregated 18-in/18-out USB audio interface or a mix of both, the ALPHA 8 offers flexible routing options for its analog and digital inputs/outputs.
Great connectivity
The operating level of each analog input and output can be individually set to +9, +18, +20 or +24 dBu, ensuring optimum signal integrity and maximizing headroom for devices connected to the ALPHA 8. Whether it's a 19" rack-mount product, an analog mixer, a 500 series module or a monitoring controller, the ALPHA 8 ensures that every connection to your equipment is fully optimized.
On the digital side, Word Clock, ADAT and S/PDIF clock input and output options ensure that the ALPHA 8 handles digital audio exceptionally well, guaranteeing jitter-free and robust integration into your studio environment, while elevating the performance of your creative space.
SSL 18 + ALPHA 8
While the ALPHA 8 is the ultimate audio interface extension for producers and engineers looking to bring SSL quality to their existing setup, the ALPHA 8 is also the perfect companion to the SSL 18. It instantly extends SSL 18 inputs/outputs via ADAT, with 8 channels (1 x ALPHA 8) or 16 channels (2 x ALPHA 8). It allows effortless integration of additional external analog processing, analog mixers and much more.
Expand your workflow!
The ALPHA 8's flexible analog and digital routing offers a wealth of workflow possibilities. Create hardware insert paths for 500 series modules, external EQs, compressors or hardware effects. Use S/PDIF inputs/outputs to integrate external meters or amp simulators. Alternatively, make the ALPHA 8 your main interface by connecting analog and digital devices to your DAW via USB-C. For electronic music producers, the ALPHA 8's outputs can provide control voltage for controlling synthesizers, modular rigs and CV/Gate effects pedals.
SSL Production Pack:
For decades, SSL has been helping world-renowned artists, producers and engineers produce quality music and audio. They know it's crucial to have the right tools to work with, which is why SSL has teamed up with some of the industry's leading brands to bring you the SSL Production Pack, which comes free with registered ALPHA 8 audio interfaces. With a selection of must-have virtual instruments, plug-ins, samples and DAWs, fuel your creativity and bring your productions to life with the SSL Production Pack (worth over €1,400).
A 6-month trial of Complete Access is included with ALPHA 8.
As an eligible SSL interface owner, enjoy six months' free subscription to Complete Access. Including all plug-ins from Solid State Logic, Slate Digital and Harrison Audio, Complete Access gives you all the software tools you need to create your next success.
Key features include:
- The ultimate audio interface expander and ideal partner for the SSL 18.
- Next-generation high-performance conversion at 32 bits/192 kHz.
- Premium 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.
Operating levels are configurable for each input and output to best suit your external equipment (+24/+20/+18/+9 dBu).
- DC-coupled outputs are perfect for sending control voltages to synthesizers and modular systems.
- 10 digital inputs and outputs (8 ADAT channels, 2 S/PDIF channels).
- 2 channels of analog to S/PDIF and S/PDIF to analog conversion.
- 2 channels of S/PDIF to ADAT and ADAT to S/PDIF conversion.
- Coaxial or optical connectors for S/PDIF.
- Flexible conversion configuration.
o Physical outputs can be powered by a mix of analog, digital and USB audio signals, offering great flexibility.
- USB audio interface 18 inputs / 18 outputs.
o Use ALPHA 8 as an aggregated USB audio interface.
Recording and playback of all 8 analog inputs/outputs and 10 digital inputs/outputs via USB.
- Headphone check monitoring on the front panel - audition any individual input or output (or stereo pair).
o Choose from 3 different settings to optimize your headphones - standard, high impedance, high sensitivity.
- Dedicated input and output meters on the front panel.
- Word Clock input and output and input termination switch.
- Internal clock, or from an ADAT, S/PDIF or Word Clock signal.
- SSL Production Pack software included - worth over €1,400.
No more compromises!
Thanks to its next-generation 32-bit/192 kHz converters, the ALPHA 8 brings SSL-level audio performance to your studio. With enormous dynamic range, surprisingly low THD+N and crosstalk, and exceptionally low noise, the ALPHA 8 offers ideal line level for your external analog processing, samplers, synthesizers and drum machines. No more compromises, capture your sound with the quality it deserves.
Input dynamic range: 120 dB
Output dynamic range: 123 dB
Input THD+N: -110 dB
Output THD+N: -108 dB
Analog flexibility and digital optimization
The ALPHA 8 is capable of many different routing configurations to meet your specific needs and enable you to make the most of all its digital and analog inputs and outputs. Whether you need a simple two-way analog <> ADAT/SPDIF converter, an aggregated 18-in/18-out USB audio interface or a mix of both, the ALPHA 8 offers flexible routing options for its analog and digital inputs/outputs.
Great connectivity
The operating level of each analog input and output can be individually set to +9, +18, +20 or +24 dBu, ensuring optimum signal integrity and maximizing headroom for devices connected to the ALPHA 8. Whether it's a 19" rack-mount product, an analog mixer, a 500 series module or a monitoring controller, the ALPHA 8 ensures that every connection to your equipment is fully optimized.
On the digital side, Word Clock, ADAT and S/PDIF clock input and output options ensure that the ALPHA 8 handles digital audio exceptionally well, guaranteeing jitter-free and robust integration into your studio environment, while elevating the performance of your creative space.
SSL 18 + ALPHA 8
While the ALPHA 8 is the ultimate audio interface extension for producers and engineers looking to bring SSL quality to their existing setup, the ALPHA 8 is also the perfect companion to the SSL 18. It instantly extends SSL 18 inputs/outputs via ADAT, with 8 channels (1 x ALPHA 8) or 16 channels (2 x ALPHA 8). It allows effortless integration of additional external analog processing, analog mixers and much more.
Expand your workflow!
The ALPHA 8's flexible analog and digital routing offers a wealth of workflow possibilities. Create hardware insert paths for 500 series modules, external EQs, compressors or hardware effects. Use S/PDIF inputs/outputs to integrate external meters or amp simulators. Alternatively, make the ALPHA 8 your main interface by connecting analog and digital devices to your DAW via USB-C. For electronic music producers, the ALPHA 8's outputs can provide control voltage for controlling synthesizers, modular rigs and CV/Gate effects pedals.
SSL Production Pack:
For decades, SSL has been helping world-renowned artists, producers and engineers produce quality music and audio. They know it's crucial to have the right tools to work with, which is why SSL has teamed up with some of the industry's leading brands to bring you the SSL Production Pack, which comes free with registered ALPHA 8 audio interfaces. With a selection of must-have virtual instruments, plug-ins, samples and DAWs, fuel your creativity and bring your productions to life with the SSL Production Pack (worth over €1,400).
A 6-month trial of Complete Access is included with ALPHA 8.
As an eligible SSL interface owner, enjoy six months' free subscription to Complete Access. Including all plug-ins from Solid State Logic, Slate Digital and Harrison Audio, Complete Access gives you all the software tools you need to create your next success.
Key features include:
- The ultimate audio interface expander and ideal partner for the SSL 18.
- Next-generation high-performance conversion at 32 bits/192 kHz.
- Premium 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.
Operating levels are configurable for each input and output to best suit your external equipment (+24/+20/+18/+9 dBu).
- DC-coupled outputs are perfect for sending control voltages to synthesizers and modular systems.
- 10 digital inputs and outputs (8 ADAT channels, 2 S/PDIF channels).
- 2 channels of analog to S/PDIF and S/PDIF to analog conversion.
- 2 channels of S/PDIF to ADAT and ADAT to S/PDIF conversion.
- Coaxial or optical connectors for S/PDIF.
- Flexible conversion configuration.
o Physical outputs can be powered by a mix of analog, digital and USB audio signals, offering great flexibility.
- USB audio interface 18 inputs / 18 outputs.
o Use ALPHA 8 as an aggregated USB audio interface.
Recording and playback of all 8 analog inputs/outputs and 10 digital inputs/outputs via USB.
- Headphone check monitoring on the front panel - audition any individual input or output (or stereo pair).
o Choose from 3 different settings to optimize your headphones - standard, high impedance, high sensitivity.
- Dedicated input and output meters on the front panel.
- Word Clock input and output and input termination switch.
- Internal clock, or from an ADAT, S/PDIF or Word Clock signal.
- SSL Production Pack software included - worth over €1,400.
- Power supply: AC adapter
- Phantom power: No
- Category: audio interface
- Compatibility: PC, Mac
- Color: Grey, Black
- Dimensions (mm): 250 x 370 x 630
- Format: rack
- Sampling frequency: 192 kHz
- Interfacing: USB-C
- Number of inputs: 18
- Number of analog inputs: 8
- Number of digital inputs: 10
- Number of outputs: 8
- Number of digital outputs: 10
- Weight (kg): 6 kg
- Max resolution: 24-bit
- Digital input type: S/PDIF, Adat
- Digital output type: S/PDIF, Adat
- Worldclock: Yes