Focusrite Scarlett 18i20 (4th Gen) review

Checked September 2026

Focusrite

Focusrite Scarlett 18i20 (4th Gen) review

Audio interfaces

An 8-preamp, rackmount USB-C interface with 26 simultaneous inputs and outputs. Best for studios tracking drum kits and bands. Price: $769.99.

Focusrite Scarlett 18i20 (4th Gen) by Focusrite

Key features

8 mic/line preamps
26 inputs and 26 outputs simultaneous
Dual ADAT, S/PDIF and MIDI
Built-in talkback microphone
1U rack-mountable
24-bit/192 kHz

Pros

Eight preamps with Air modes
Built-in talkback mic
Large I/O count

Cons

Rack-sized, not a desktop unit

Focusrite Scarlett 18i20 (4th Gen) alternatives

Focusrite
Focusrite Scarlett Solo (4th Gen)
$159.99once
A 2-in, 2-out USB-C interface with one mic preamp and one dedicated guitar input.
VST3not supportedAUnot supportedAAXnot supportedCLAPnot supportedWINsupportedMACsupportedLNXnot supported
Focusrite
Focusrite Scarlett 2i2 (4th Gen)
$224.99once
A 2-in, 2-out USB-C interface with two mic preamps and Auto Gain.
VST3not supportedAUnot supportedAAXnot supportedCLAPnot supportedWINsupportedMACsupportedLNXnot supported
Focusrite
Focusrite Scarlett 4i4 (4th Gen)
$309.99once
A 4-in, 4-out USB-C interface with MIDI I/O and two mic preamps.
VST3not supportedAUnot supportedAAXnot supportedCLAPnot supportedWINsupportedMACsupportedLNXnot supported

All Focusrite Scarlett 18i20 (4th Gen) alternatives