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Solid State Logic SSL 12 USB Audio Interface

BH #SOSSL12 • MFR #729705X2
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Solid State Logic SSL 12 USB Audio Interface
Key Features
  • Producers, Content Creators & Musicians
  • Bus-Powered Mac/Windows
  • 4 Mic/Line Preamps, 2 Hi-Z Inputs
  • 2 Headphone Outputs, 4 Line Outputs
Building upon the success of the Solid State Logic SSL 2 and SSL 2+, the SSL 12 USB Audio Interface is a highly portable 12-in / 8-out, bus-powered interface that delivers all of the professional, studio-grade quality and legendary analog character one would expect from SSL in a compact form factor, ideal for content creators and producers on a tight budget. With pristine 32-bit / 192 kHz AD/DA conversion, you will capture every detail and nuance of your recorded sounds, while ADAT input and intuitive console-style software mixing allows the SSL 12 to be both a studio centerpiece and a portable production hub all at once.
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Solid State Logic SSL 12 Overview

Big Studio Features, Small Desktop Footprint
Building upon the success of the Solid State Logic SSL 2 and SSL 2+, the SSL 12 USB Audio Interface is a highly portable 12-in / 8-out, bus-powered interface that delivers all of the professional, studio-grade quality and legendary analog character one would expect from SSL in a compact form factor, ideal for content creators and producers on a tight budget. With pristine 32-bit / 192 kHz AD/DA conversion, you will capture every detail and nuance of your recorded sounds, while ADAT input and intuitive console-style software mixing allows the SSL 12 to be both a studio centerpiece and a portable production hub all at once.
Intuitive and Efficient
Each input channel is arranged vertically like a large-format mixing board, providing 5-segment LED metering, selectable 48V phantom power, mic and line-level operation, and a Legacy 4K switch that adds real analog color enhancement to any input source, inspired by the classic sound of 4000 Series consoles heard on countless hit records. Stunningly low noise, unrivaled EIN performance, and a huge gain range ensure optimal sound quality in any recording scenario. And with a wide range of I/O and routing options, as well as a plethora of included software, the SSL 12 can tackle just about any recording scenario you throw at it, from mobile recording setups, live performances, and podcasting applications, to serious studio work and sophisticated content creation.
Comprehensive I/O in a Small Desktop Footprint
Despite it's compact size, the SSL 12 is loaded with a huge amount of professional studio features normally reserved for high-end rackmount interfaces. For tracking, the ADAT connectivity together with onboard talkback mic and an incredibly powerful cue mixer (that allows you to create up to 4 independent near-zero-latency performer mixes) handle the most demanding recording sessions. For mixing, alternative monitor switching and assignable front-panel control-room functions put everything you need at your fingertips. For production, USB Loopback, MIDI I/O, and DC-coupled outputs for CV control of synths and FX equip you with a serious toolkit to keep the creativity flowing.

  • Four SSL-designed microphone preamps with unrivalled EIN performance and huge gain range for a USB-powered device
  • Four Neutrik combo XLR-1/4" mic/line inputs with +48V phantom power, selectable per input
  • Two Hi-Z instrument inputs for guitars, bass, or vintage instruments 
  • Two professional-grade headphone outputs with switchable modes of operation for high-impedance or high-sensitivity headphones and up to four independent headphone mixes 
  • Headphone outputs can be repurposed as additional balanced/unbalanced line-level outputs 
  • Four dedicated, balanced 1/4" line outputs 
  • USB-C for 12 x 8 digital tracking and bus power 
  • ADAT input expands input channel count with 8 extra channels of digital audio 
  • USB loopback, MIDI 5-pin DIN in and out, and DC-coupled 1/4" outputs for CV control of synths and FX
Real Analog Enhancement Inspired by The SSL 4000 Series (4K) Console
SSL has a history of innovation in analog electronics and console design. Whether it's the sound of the classic 242 and 292 EQ circuits, the punch of the legendary SSL Bus Compressor, or the incredible bandwidth and sonic accuracy of the groundbreaking SuperAnalogue designed mic amps and consoles, SSL is always moving forward with analog. Legacy 4K is an all-analog enhancement effect inspired by the character of an SSL 4000 Series console (often referred to as 4K). It distills two essential characteristics of the 4K sound into a single circuit. Engaging the Legacy 4K circuit introduces a forward yet musical-sounding high-frequency EQ boost, adding some excitement to your vocal or instrument. Secondly, add some subtle analog distortion with finely tuned harmonic content, to bolster any sound with more edge and personality.
SSL Studio Quality, Built to Last
For over 50 years, SSL have been designing cutting-edge mixing consoles and hardware processors, as used by the world’s most recognized artists and recording studios. Over that time, their reputation as a world-leading manufacturer of professional audio equipment has centered around a constant pursuit of audio excellence and technical innovation, accomplished through streamlining production workflows and advanced studio ergonomics.

SSL 12 takes the traditional desktop audio interface where it’s never been before with an incredible array of features in a compact footprint that delivers outstanding audio quality. Featuring familiar Alps pots, Neutrik connectors, and an attractive brushed aluminum front panel, SSL 12 is built to last whether you’re using it in the studio or on location.

Speed Up Your Workflow with SSL 12 Mixer
The cross-platform Mac and Windows SSL 360° application hosts the powerful yet intuitive console-style SSL 12 Mixer, where you can configure and control every aspect of SSL 12:

  • Easily set up multiple near-zero latency headphone mixes
  • Configure HP-A and HP-B outputs for different headphone sensitivities or as additional line-level outputs
  • Customize the three user-assignable front-panel buttons
  • Choose your Loopback source
  • Save/load SSL 12 Mixer templates 
Comes with SSL Production Pack
Providing inspirational software from your favorite industry tools, the SSL 12 comes bundled with the SSL Production Pack, a unique collection of SSL and 3rd-party software packed with a selection of must-have virtual instruments, plug-ins, samples, and DAWs. Worth over $1000, this software pack will let your creativity shine and bring your productions to life.

  • 3-months free access to SSL Complete subscription
  • 3-months free access to Auto-Tune Unlimited subscription
  • 3-months free access to Arcade subscription by Output
  • Perpetual plug-in licenses for SSL Vocalstrip 2 and Drumstrip plug-ins
  • IK Multimedia AmpliTube 5 SE
  • Celemony Melodyne essential
  • Native Instruments Hybrid Keys and Komplete Start
  • Ableton Live 11 Lite
  • AAS Session Bundle plug-ins
  • 1.5 GB of samples from Loopcloud
UPC: 878076001678

Solid State Logic SSL 12 Specs

Key Specs
Channels of I/O
Analog:
4 Inputs / 8 Outputs at 192 kHz
ADAT:
8 Inputs
Maximum Sampling Rate
192 kHz / 32-Bit
Number of Microphone Inputs
4
Analog Audio I/O
4x Combo XLR-1/4" TRS Mic/Line Input
2x 1/4" TS Hi-Z Input
4x 1/4" TRS Line Output
2x 1/4" TRS Line/Headphone Output
Digital Audio I/O
TOSLINK Optical ADAT Input
Host Connection
1x USB-C (on Interface)
Power Requirements
USB Bus Power
General
Display
No
Channels of I/O
Analog:
4 Inputs / 8 Outputs at 192 kHz
ADAT:
8 Inputs
Built-In DSP
No
Maximum Sampling Rate
192 kHz / 32-Bit
Number of Microphone Inputs
4
Built-In Microphone
No
Input Level Adjustment
4x Knob
Signal Processing
Pad
No
Gain/Trim Range
Combo XLR-1/4" Mic Inputs:
62 dB (Mic Amp Gain)
High-Pass Filter
No
Connectivity
Analog Audio I/O
4x Combo XLR-1/4" TRS Balanced Mic/Line Input
2x 1/4" TS Unbalanced Hi-Z Input (Front Panel)
4x 1/4" TRS Balanced Line Output
2x 1/4" TRS Balanced/Unbalanced Line/Headphone Output (Front Panel)
Phantom Power
48 V, Selectable On/Off (Selectable on Individual Inputs)
Digital Audio I/O
1x TOSLINK Optical ADAT Input
Host Connection / USB
1x USB-C (on Interface)
Host Connection Protocol
USB 2.0
USB (Non-Host)
No
Sync I/O
No
Network I/O
No
MIDI I/O
1x DIN 5-Pin Input
1x DIN 5-Pin Output
Expansion Slots
No
Wireless
No
Performance
Frequency Response
20 Hz to 20 kHz
Maximum Input Level
Combo XLR-1/4" Line Inputs:
+24 dBu
1/4" Hi-Z Inputs:
+14 dBu
Maximum Output Level
1/4" Line Outputs:
+24 dBu
Impedance
Mic Inputs:
1.2 Kilohms (Balanced, Mic Level)
Line Inputs:
15 Kilohms
Hi-Z Inputs:
1 Megohm
Headphone Outputs:
< 1 Ohm
Main Outputs:
75 Ohms (Balanced)
Dynamic Range
Hi-Z Inputs:
110.5 dB
Line Inputs:
111.5 dBA
Mic Inputs:
111 dBA
1/4" Headphone Outputs:
> 112 dBA
108 dBA
1/4" Monitor Outputs:
> 120 dBA
THD+N
Mic/Hi-Z Inputs:
0.0015% (-8 dBFS)
Line Inputs:
0.0005% (-1 dBFS at 1 kHz)
Monitor Outputs:
0.0005% (-1 dBFS at 1 kHz)
Headphone Outputs:
0.005% (Standard Mode, -1 dBFS at 1 kHz)
0.001% (High Sensitivity, -1 dBFS at 1 kHz)
0.001% (High Impedance, -1 dBFS at 1 kHz)
0.005% (Line Mode Balanced, -1 dBFS at 1 kHz)
EIN
Combo XLR-1/4" Mic Inputs:
-130.5 dBu A-Weighted
Digital Audio
Sample Rates
44.1 to 192 kHz
Sample Rate Conversion
On ADAT I/O/All Inputs
Bit Depths
32-Bit
Latency
Zero-Latency Direct Monitoring
Sync Sources
ADAT, Internal
Audio Storage & Playback
Media/Memory Card Slot
No
Compatibility
OS Compatibility
macOS 10.15 or Later / Windows 10 or Later
Mobile Device Compatibility
No
Required Hardware
USB 2.0 Port, USB Cable
Power
Power Requirements
USB Bus Power
Physical
Certifications
CE, EN, FCC Part 15, ICES-003, WEEE
Dimensions
11.29 x 6.1 x 2.31" / 28.67 x 15.49 x 5.86 cm
Weight
3.1 lb / 1.4 kg
Packaging Info
Package Weight
3.145 lb
Box Dimensions (LxWxH)
13 x 7.7 x 4.1"

Solid State Logic SSL 12 Reviews

Very Nice

By Eren
Rated 5 out of 5
Date: 2025-09-08

The high impedance option for headphones is great. The 4K feature has mixed reviews but it's a great creative option to have. The build and knobs feel good good. Overall, I don't think anyone would be disappointed with this product.

Best sounding interface I ever had!

By Ingram
Rated 5 out of 5
Date: 2025-04-21

Great sound and the ability to expand channels via ADAT makes this a great investment.

See any errors on this page?

Are the outputs assignable or they all send the ...

Are the outputs assignable or they all send the same Mix out?
Asked by: Emmanuel
On the Solid State Logic SSL 12 USB Audio Interface, Outputs 1 and 2 are intended for the main monitor output and Outputs 3 and 4 can be used for an alternative set of monitors which can be controlled by the Monitor knob when the ALT button is engaged. It is possible to create independent mixes for the Headphone A and B Outputs, as well as for the Line 3 and 4 Outputs. The Line 3 and 4 Outputs will allow the signal to be routed to Outputs 3 and 4. When the output channel is stereo linked, a single set of controls for Pan, Level, and Mute are provided. However, when the output channel is split into dual-mono, independent level controls appear for Output 3 and Output 4.
Answered by: Lisa S
Date published: 2023-04-16

Is the interface 32-bit fixed or floating?

Is the interface 32-bit fixed or floating?
Asked by: Bernard
The Solid State Logic SSL 12 USB Audio Interface offer 32-bit fixed point audio.
Answered by: Lisa S
Date published: 2023-03-23

Can this interface link two inputs to link a ...

Can this interface link two inputs to link a stereo microphone in daw for recording like the UA DLX?
Asked by: Brett
Yes, you can use two input channels on the Solid State Logic SSL 12 USB Audio Interface to record stereo audio from the Universal Audio Sphere DLX Modeling Microphone.
Answered by: Lisa S
Date published: 2025-02-24
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