Focusrite Scarlett 18i20 2rd Gen USB Audio Interface Review (July 2024)


Last updated on July 17, 2024 11:40 pm Details


In this review post, we’re going to be discussing the Focusrite Scarlett 18i20 2rd Gen USB Audio Interface, including an overview of its unique features.

Product Description

Focusrite Scarlett 18i20 is the perfect rack-mountable centerpiece for your studio. With a total of 18 inputs and 20 outputs, record anything from a drum kit to multiple instruments, vocals, synths, and keyboards on your computer. Eight natural-sounding combination input Scarlett mic preamps, roundtrip latency of 2.74ms*, and class-leading sound quality and digital conversion are complemented by a host of additional inputs and outputs.

An ADAT input allows you to expand your analog inputs for larger recording sessions. Focusrite is the perfect partner for Pro Tools. To that end, Focusrite and Avid will continue to work together to ensure all Scarlett interfaces are thoroughly tested with the latest version of Pro Tools. Scarlett 18i20 is also compatible with all other major DAWs, on Mac and PC. Download the free Focusrite iOS Control app and adjust cue mixes created with the Focusrite Control desktop app remotely from an iPad, iPhone, or iPod touch. *Roundtrip latency was measured at 2.74ms, working at 96kHz with a 32 samples buffer on Logic Pro X, running on a Mac Pro and OS 10.11

Product Features

  • Use it with all major DAWs on Mac and PC
  • Class-leading digital conversion at up to 24-bit / 192kHz
  • MIDI I/O connectivity, ideal for sending/receiving MIDI
  • Two headphone outputs with dedicated volume controls
  • All the additional software and loops you need to record
  • Three Month Avid Pro Tools subscription and Ableton Live Lite
  • Stereo S/PDIF In and Out for connecting another digital device
  • Focusrite Control software to easily configure your monitoring and routing setups
  • Remote control from iPhone or iPad – Download the free Focusrite iOS Control app
  • ADAT expansion ports allow you to add an extra eight analog inputs and outputs
  • Ten balanced analog outputs, including a dedicated stereo pair with anti-thump circuitry
  • Two newly-designed instrument inputs, now with increased headroom for seriously hot pick-ups
  • Eight Scarlett mic preamps with plenty of even gains, exceptional headroom, low noise, and minimal distortion
  • The lowest roundtrip latency* in its class lets you perform and produce using effects in real-time, with no need for DSP

Pros & Cons


  • Strong build quality
  • Exceptionally trustworthy
  • Positive customer testimonials
  • Worth the investment
  • Great audio quality
  • Best suited for live performances and recording


  • Large in size
  • Rather pricey

Focusrite Scarlett 18i20 2rd Gen USB Audio Interface Demo

Our Verdict

2-in/2-out interfaces can become claustrophobic at some point. When you’re ready to advance, you can expand your ins and outs in smaller increments at a lower cost. Scarlett models with more channels are also available.

However, with a street price of less than $500, the 18i20 is very appealing, especially when the other options provide fewer tracks while still costing a significant portion of the 18i20’s cost. People, this is value for money, so go big on tracks, go cheap on price, and go home to record.

Where to Buy

The best place to buy this product has to be Amazon, due to their competitive pricing and fantastic customer service.

Focusrite Scarlett 18i20 (2nd Gen) USB Audio Interface with Pro Tools | First, 18i20 - 8 Mic Pres (AMS-SCARLETT-18I20-2ND-GE)

as of July 12, 2024 5:12 pm

Pricing History

Price History for Focusrite Scarlett 18i20 (2nd Gen) USB Audio Interface with Pro Tools | First, 18i20 - 8 Mic Pres...


Current Price $599.99 July 12, 2024
Highest Price $599.99 October 10, 2023
Lowest Price $424.95 August 16, 2023
Since August 16, 2023

Last price changes

$599.99 December 28, 2023
$550.00 November 16, 2023
$599.99 October 10, 2023
$424.95 August 16, 2023

Buyers Guides This Product Is Featured In

Best Audio Interfaces Under $500

Best 8 Channel Audio Interfaces (2022)

Additional information

Item Weight

7.5 pounds

Product Dimensions

1.77 x 18.98 x 10.43 inches

Item model number


Is Discontinued By Manufacturer


Date First Available

June 1, 2016

Color Name

18i20 – 8 Mic Pres

Compatible Devices

Personal Computer

Hardware Interface

USB 2.0


18i20 (2nd Gen)

Color Screen



240 Volts


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