Focusrite Scarlett 18i20 4th Gen

Focusrite Scarlett 18i20 4th Gen – 26-in/26-out USB-C Studio Hub

Built for serious studios and live tracking, Scarlett 18i20 4th Gen combines eight ultra-low-noise mic preamps, smart level management, and extensive analog/digital I/O in a streamlined 1U rack. It’s the dependable centerpiece for bands, creators, and hybrid rigs.

Key Features

• Eight 4th-Gen mic pres with two Air modes: Clean, transparent gain plus Presence and Harmonic Drive options for mix-ready tone without extra hardware
• Auto Gain & Clip Safe: Set all eight mic levels in seconds and protect takes by automatically reducing gain if clipping is detected
• 26-in/26-out with dual ADAT: Expand to large multi-mic sessions; up to 16 channels of ADAT at 44.1/48 kHz or 8 channels at 96 kHz
• 122 dB converter dynamic range: Detailed 24-bit/192 kHz recording with converters derived from Focusrite’s flagship designs
• Studio control tools built in: Alt speaker switching, talkback mic, two independent headphone amps, and clear front-panel metering
• Focusrite Control 2 (desktop & mobile): Remote-control preamps, routing, and monitor mixes anywhere in the room

Customer Benefits

Track full bands with confidence, route hardware easily, and avoid ruined takes thanks to smart gain features. With flexible monitoring and expansion on tap, you can grow from small sessions to complex hybrid setups without changing interfaces. High-headroom preamps and modern converters ensure your recordings translate from capture to mixdown.

Quick Specs

• Simultaneous I/O: 26 in / 26 out (USB-C)
• Analog inputs: 8 × XLR/TRS combo mic/line (incl. 2 Hi-Z instrument on the front)
• Analog outputs: 10 × balanced TRS line outs; 2 × independent 1/4″ headphone outs
• Digital I/O: Dual ADAT I/O (up to 16 ch @ 44.1/48 kHz or 8 ch @ 96 kHz), S/PDIF I/O, MIDI I/O, Word Clock Out
• Resolution: 24-bit / 192 kHz; Converter dynamic range: up to 122 dB
• Mic pre gain range: up to 69 dB; Phantom power: +48 V
• Dimensions: 44.2 × 26.0 × 4.7 cm
• Weight: 3.3 kg
• Power: External IEC (included)

What’s in the Box

• Scarlett 18i20 4th Gen audio interface
• Rack ears
• USB-C to USB-C cable + USB-C to USB-A adapter
• IEC power cable
• Software bundle (Ableton Live Lite, Pro Tools Intro+, six months of FL Studio Producer Edition) and Hitmaker Expansion

Use Cases / Ideal For

Tracking bands and drummers, podcast studios with multiple mics and mixes, hybrid setups with outboard and synths, and multi-speaker monitoring (e.g., A/B or 5.1 groups) via Focusrite Control 2.

Compatibility

Works with macOS, Windows, and USB-C iPad (class-compliant). Full routing and remote control via Focusrite Control 2 desktop and mobile apps. Compatible with all major DAWs.

Pros & Cons

✅ Pros:

• Big-session I/O and easy ADAT expansion
• Auto Gain and Clip Safe prevent ruined takes
• Two Air modes add musical polish without extra gear
• Talkback, speaker switching, and strong metering streamline studio workflow

⚠️ Cons:

• Requires mains power; not bus-powered
• Best features depend on software control—less convenient for standalone use
• ADAT channel count halves at higher sample rates

Scarlett 18i20 4th Gen brings pro-level I/O, intelligent gain control, and refined conversion into a single, reliable rack unit. If you’re building a flexible studio that can handle anything from full bands to surround monitoring, this interface is a rock-solid centerpiece.