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Scarlet 18i20

Scarlett 18i20 is the best sounding interface in its class.

  • Overview
  • Key Features
  • Software
  • Inputs & Outputs
  • System Requirements

USB 2.0 audio interface with eight Focusrite mic preamps

With its versatile complement of no less than 20 outputs and 18 inputs – including eight of Focusrite’s award-winning Focusrite microphone preamplifiers designed specifically for the computer interface environment and delivering legendary Focusrite sound quality – the rack-mounting 18i20 quite literally forms the heart of the modern digital studio, combining the central features of Focusrite’s USB 2.0 audio interface range: mic preamps that build on 30 years of experience and precision 24/96 analogue/digital conversion for the very best quality into and out of your DAW.

Focusrite mic preamps, backed by 30 years of design experience and found in the world’s top studios, give the 18i20 an unequalled level of performance, with low noise, minimal distortion and enormous dynamic range. Dual front-panel inputs also offer 10dB pad buttons to handle the highest-level inputs. 18i20 supports both Macintosh and Windows computers as well as the iPad (Camera Connection Kit required).

Comprehensive inputs/outputs

With its 18 inputs and 20 outputs, Scarlett 18i20 has the I/O capability to take on the vast majority of day-to-day studio tasks with maximum quality and maximum flexibility. Scarlett 18i20 features six combo XLR/jack mic/line inputs plus two front-panel XLR/jack mic/line/instrument inputs with 10dB pad buttons, 10 analogue line outputs two providing independent headphone outputs on the front panel, and ADAT and S/PDIF digital I/O. Use the additional ADAT interface to bring in digital sources or to add preamps such as Focusrite’s OctoPre Mk II, bringing the mic pre complement to 16 channels – ideal for recording a complete band. 18i20 also provides MIDI I/O and Word Clock out for digital synchronisation when required.

Class leading digital conversion

Scarlett 18i20’s prodigious I/O capability is backed by Focusrite’s class-leading precision digital conversion technology, operating at up to 96 kHz, 24-bit and designed to ensure that you get the very highest quality into and out of your audio software – all major digital audio workstations are supported, and with the latest Red 2 and Red 3 AAX plugins (included), 18i20 is the perfect partner for Pro Tools.

High channel count and Focusrite quality – on USB 2.0 and iOS

Suitable for Windows, Macintosh and even iOS platforms, Scarlett 18i20’s USB 2.0 connection suits almost any computer and delivers a powerful combination of precision digital conversion and award-winning mic pres with 30 years of experience behind them. For the best performance, don’t connect your interface to the same bus as your drives – use a USB interface when you don’t have USB drives.

Eight high-quality award-winning Focusrite preamps

Scarlett 18i20 is the best sounding interface in its class. Focusrite’s unparalleled reputation for audio excellence forms the foundation of this new interface, with eight award-winning Focusrite preamps.

High-quality 24-bit/96kHz USB 2.0 interface compatible with Mac, Windows and iOS

Features high quality A-D / D-A at up to 96kHz, 24bit. Pristine audio quality and rock-solid synchronisation are guaranteed on Mac and Windows as well as driver-free operation on the iOS platform.

18 inputs & 20 outputs

Scarlett 18i20 boasts an extensive range of analogue and digital I/O capabilities including ADAT I/O which can enable an additional eight inputs and outputs.

Dual independent headphone buses

Give two artists independent, fully-customised monitor mixes – each with an independent front-panel level control.

Scarlett MixControl ultra-low-latency DSP mixer/router

Maximising routing flexibility and intuitive one-click set-up solutions, Scarlett MixControl provides an 18 x 8 DSP mixer with powerful routing and monitoring capabilities.

Unmatched routing flexibility

Scarlett 18i20 is the most flexible interface in its class, enabling you to intuitively adapt it immediately to the needs of any recording session. Route any input signal or DAW output, or a mix of both, to any output.

Comprehensive bundle of included software

Comes with Ableton Live Lite – ground-breaking production and performance software, Scarlett Plug-in Suite – EQ, compression, gating and reverb, Novation Bass Station - software model of the classic Novation analogue mono-synth, and 1GB of Loopmasters samples.

Ableton Live Lite

Innovative music production software used by industry professionals all over the world. Ableton Live includes a unique performance feature as well as being a fully functioning DAW.

Scarlett MixControl

An 18 x 8 DSP mixer. Offering a superb level of flexibility, MixControl software enables you to create eight separate mixes with ultra-low-latency.

Scarlett Plug-in Suite

VST/AU/RTAS Plug-in Suite comes in the box, adding Focusrite compression, reverb, gating and EQ to your recording system.

Novation Bass Station

The legendary analogue mono-synth from Novation in software form - AU/VST plug-in for your DAW.


1 gig of royalty-free samples from the world's leading sample production organisation - Loopmasters.

Count Format Connector Details
8 Mic/line analogue Combi XLR Including 2 instrument inputs
2 S/PDIF RCA Phono  
8 ADAT Optical Lightpipe 4 channels via SMUX 2 96kHz
16 MIDI 5pin DIN connector Provides 16 channels of MIDI
2 Line analogue ¼” TRS Jack Dedicated monitor outputs
8 Line analogue ¼” TRS Jack 4 outputs (7/8 & 9/10) are also available via the 2 independently controlled, stereo headphone ¼” Jack on the front panel
2 S/PDIF RCA Phono  
8 ADAT Optical Lightpipe 4 channels via SMUX @ 96 kHz
16 MIDI 5pin DIN connector  

Mac OS X 10.7 Lion or 10.8 Mountain Lion or later Windows 7 (all versions) or Windows 8 (Not including Windows RT)