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Focusrite Scarlett 18i20 4th Gen Audio Interface
The Focusrite Scarlett 18i20 4th Gen is the flagship of the Scarlett range: a 1U rackmount USB-C audio interface with 18 inputs and 20 outputs, built for complex project studios. It pairs Focusrite's best-selling Scarlett workflow with serious I/O and studio-grade conversion.
Eight 4th Gen mic preamps, with up to 69 dB gain and re-engineered Air (Presence and Harmonic Drive), feed flagship RedNet-derived converters rated at a 122 dB dynamic range, alongside ten analogue line outputs, ADAT optical and coaxial S/PDIF digital I/O. Studio workflow features include a built-in talkback mic, A/B speaker switching for monitor referencing, eight-channel LED bar metering, front-panel monitor and mute control, multiple headphone outputs, and full control via Focusrite Control 2 on desktop and mobile.
It is a professional hub for hardware-rich studios. DjLab supplies genuine Focusrite in Lebanon with USD pricing, warranty handled locally, and fast delivery.
| Type | 1U rackmount USB-C audio interface (flagship) |
| I/O | 18 in / 20 out |
| Preamps | 8x 4th Gen mic pre, up to 69 dB gain, Air (Presence + Harmonic Drive) |
| Converters | RedNet-derived, 122 dB dynamic range |
| Analogue out | 10 line outputs |
| Digital | ADAT optical + coaxial S/PDIF |
| Workflow | Talkback mic, A/B speaker switching, 8-ch LED metering, Auto Gain, Clip Safe |
| Connection | USB-C; Focusrite Control 2 (desktop + mobile) |
Detailed technical specifications are shown in the Overview section above.
5 reviews from leading pro-audio publications
“The Focusrite Scarlett 18i20 4th ... over its predecessor, boasting excellent audio quality, comprehensive I/O options, and useful features for streamlining the recording process....”Read full review →
“In this review, we put the Focusrite Scarlett 18i20 4th Gen to the test. With 18 ins, 20 outs, clean preamps, loopback, and auto gain, it delivers pro-studio flexibility for producers, DJs, and streamers at an affordable price.”Read full review →
“Ultimately though, and this is where all the Focusrite 4th Gen interfaces excel, it’s the usability that makes them so good. I do not doubt that even a complete beginner could get the 18i20 set up and start making multi-mic recordings it’s that easy to use. The plethora of additional features combined with the power of the Focusrite Control App makes it incredibly accessible, even if you’ve not dealt with any more than 2-inputs previously. ... Focusrite Scarlett 18i20 4th Gen Review - Is This The Best Budget Audio Interface For 2025?”Read full review →
“I can really hear the difference in overall clarity, and the huge dynamic range allows me to capture both the soft nuances and high peaks of my recordings. Input gain is the level of amplification applied to the audio signal coming from your ...”Read full review →
“For me, the only upgrade I'd want from an updated 18i20 would be if they made the two ADAT pairs capable of doing 16 channels instead of just 8 but higher sample rate. Weird choice for them to keep doing that when others like the Audient Evo 16 offer all those options through the ADAT pairs. I think there are a lot more people who'd prefer to get 16 channels at 48k than just 8 but being able to go up to 96k. The only way to get more channels from Focusrite is to spend FIVE times as much on their Red 8.”Read full review →
