Solid State Logic ALPHA 8 Audio Interface

The Ultimate Audio Interface Expander

Building on the acclaimed Alpha Link range, Solid State Logic introduce ALPHA 8 - an 8-in/8-out professional-grade analogue to digital, digital to analogue converter, perfect for expanding your audio interface via ADAT and S/PDIF. Alternatively, you can configure ALPHA 8 to address all analogue and digital I/O simultaneously via USB, giving you an 18-in, 18-out audio interface. Featuring class-leading conversion, flexible routing, and impeccable audio performance, ALPHA 8 unlocks the full potential of your setup.

Next-Gen Converters

Accurate, transparent recording and sound reproduction

High-Performance

Class-leading audio performance in every area

8 x Balanced Analogue I/O

Professional-grade analogue I/O

10 x Digital I/O

8 channels of ADAT, 2 channels of S/PDIF

+9, +18, +20, or +24 dBu

Individually adjust I/O operating levels

18-in / 18-out USB Audio Interface

Use ALPHA 8 as your primary interface via USB-C

High-Current Headphone Out

 Confidence monitor your conversion paths

DC-Coupled Outputs

Use analogue outputs to send CV to synths, drum machines and more

SSL Production Pack

A unique collection of inspiring software

Compatible with Mac and Windows

Plug and play on Mac, ASIO/WDM driver for Windows

The Compromise Is Over

Using next-generation 32-bit/192 kHz converters, Alpha 8 brings SSL-grade audio performance to your studio. With huge dynamic range, stunningly low THD+N, unmeasurable crosstalk and an exceptionally low noise floor, Alpha 8 delivers line-level heaven for your analogue outboard processing, samplers, synths and drum machines. The compromise is over – 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

Analogue Agility And Digital Dominance

ALPHA 8 is capable of many different AD/DA routing configurations to suit your specific needs, making sure you can get the most out of all the digital and analogue I/O it offers. Whether you need a simple bidirectional Analogue <> ADAT/SPDIF converter, an aggregate 18-in/18-out USB audio interface, or a mixture of the two, ALPHA 8 provides extremely flexible routing options for its analogue and digital I/O.

Flexible routing configurations / 18-in 18-out USB Audio Interface 

The Great Connector 

The operating level of each analogue input and output can be individually adjusted to +9, +18, +20 or +24 dBu operating levels, ensuring optimal signal integrity and maximising headroom for devices connected to ALPHA 8. Whether it’s 19” rack gear, vintage synthesisers, analogue mixers, 500-series modules, or monitor controllers, ALPHA 8 ensures every connection to your equipment is fully optimised. On the digital side, Word Clock in and out, ADAT, and S/PDIF clocking options ensure ALPHA 8 provides outstanding digital audio handling, guaranteeing jitter-free, rock-solid integration in your studio environment whilst elevating the performance of your creative space.

+9, +18, +20 or +24 dBu Operating Levels / Word Clock 

Key Features

• The ultimate audio interface expander

• Premium, next-generation 32-bit / 192 kHz conversion

• Class-leading dynamic range, THD+N and crosstalk audio performance

• 8 balanced line inputs and outputs

Up to 8 channels of analogue to ADAT and ADAT to analogue conversion

Configurable operating levels for each input and output to best match your external equipment: +24/+20/+18/+9 dBu

DC-coupled outputs are perfect for sending control voltages to synthesisers and modular rig

• 10 digital inputs and outputs (8 channels of ADAT, 2 channels of S/PDIF)

Up to 2 channels of analogue to S/PDIF and S/PDIF to analogue conversion

Up to 2 channels of S/PDIF to ADAT and ADAT to S/PDIF conversion

S/PDIF available on coaxial or optical connectors

• Flexible conversion configuration

The physical outputs can be fed with a mixture of analogue, digital and USB audio signals, providing a great level of flexibility

• 18-in, 18-out USB audio interface

Use Alpha 8 as an aggregate USB audio interface

Record and playback to all 8 analogue and 10 digital I/O via USB.

• High-current front panel headphone confidence check – audition any individual input or output (or stereo pair)

Choose from 3 different settings to optimise for your headphones – Standard, High Impedance, High Sensitivity

Dedicated front panel input and output meters

Wordclock in and out & input termination switch

Clock internally, or from incoming ADAT, S/PDIF or wordclock

Software Included

The SSL Production Pack includes:

• 6-months free Complete Access subscription.
• 3-months free access to Auto-Tune Unlimited subscription.
• 3-months free access to Arcade by Output subscription.
• Perpetual licenses for SSL Vocalstrip 2 and Drumstrip plug-ins.
• IK Multimedia Amplitube 5 SE.

• Celemony Melodyne Essential.
• Native Instruments Hybrid Keys & Komplete Start.
• Ableton Live 11 Lite.
• AAS Session Bundle plug-ins.
• 1.5 GB Samples from Loopcloud.

System requirements and Specs:

Mac OS 13 or later | Class-Compliant, Plug-and-play

Windows 10, Windows 11 | Install included ASIO/WDM driver

Connectivity

USB 2.0 Type C Connector (Box includes Type C to C and Type C to A)


Line Inputs

8 x Line Inputs

Max input level: 24 dBu

Dynamic Range (A-weighted): 120 dB

THD+N: -110 dB

Crosstalk: -140 dB 

*Specs (Measured to AES17 Standards)

Line Outputs 

8 x Line Outputs

Max Output Level: +24 dBu?

Dynamic Range (A-weighted): 123 dB? 

THD+N: -108 dB

Crosstalk: -140

Headphone Output

1 x ?" Ouput

Dynamic Range: 120 dB

Max Output: +18 dBu (High Impedance Mode) / 24 dBu (Balanced Line Output Mode)

Output Impedance: <1 Ω

Digital Inputs

2 x Optical (ADAT) I/O

1 x S/PDIF I/O

Sample rates?

44.1, 48, 88.2, 96, 176.4, 192 kHz