Solid State Logic releases rackmount USB audio interface designed to be the “ultimate studio centrepiece”NAMM 2025: Solid State Logic has officially released a brand new rackmount USB audio interface, the SSL 18.
The British brand, who announced the launch during a press conference at NAMM, says the new product is marking “the start of a new era in rackmount production technology” from the company, and that it is designed to be the “ultimate studio centrepiece” by enhancing production workflows.

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The SSL 18 hosts 32-bit/192 kHz converters and has a dynamic range performance of 120 dB across all of its microphone, line-level and instrument inputs. It also has 125 dB dynamic range on the monitor and line outputs, and its integrated high-current amplifier features dual headphone outputs offering 120 dB dynamic range.
Featuring eight mic preamplifiers with switchable Mic/Line configuration, its inputs offer an ultra-low noise floor and allow “every detail of a performance to be captured with stunning accuracy”. Each input can also be switched into Legacy 4K Analogue Enhancement Mode, adding analogue saturation and a high-frequency boost.
Inputs 1 & 2 are located on the front panel and offer instrument/Hi-Z inputs to capture DI’d guitars and vintage synths/drum machines, while 10 balanced line-level outputs are then located on the rear of the unit. Line outputs 1&2 and 3&4 can be configured to +9 or +24 dBu, ensuring compatibility with an array of studio monitors and vintage equipment, while outputs 3 to 10 operate at +24 dBu, so they’re suitable for integrating professional outboard equipment.
All outputs are DC-coupled and capable of sending Control Voltage (CV) to synthesisers and/or modular rigs. Additionally, SSL 18 features configurable analogue insert points for inputs 1 and 2, and there is also a full monitoring control section with talkback input.

Senior Product Manager, Andy Jackson, comments, “Our engineering team applied their analogue and digital design expertise to exceed expectations. With the powerful SSL 360 software, SSL 18 delivers a world-class studio experience to any setup. We’re eager for everyone to experience its sound and workflow.”
Find SSL in Booth 18301 at The NAMM Show, or find out more via the Solid State Logic website.
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