Audio Interfaces

The Focusrite Scarlett 18i20 Generation 4 is a USB audio interface designed for small studios. Equipped with the same converters as the RedNet range, it offers 18 inputs and 20 outputs, including 8 4th generation mic preamps with 69 dB gain and MIDI, ADAT and S/PDIF inputs and outputs. Air mode, with Presence and Harmonic Drive functions, recreates the sound of studio consoles, while the built-in DSP emulates the ISA preamp. Its Auto Gain and Clip Safe mode automatically adjust levels, allowing you to concentrate on recording. It also allows for latency-free monitoring and has 2 powerful headphone amps for separate control. It is controlled with Focusrite Control 2 software for advanced routing and is compatible with major DAWs such as Pro Tools and Ableton Live. Compact, rugged and suitable for studio use, the Scarlett 18i20 offers 120 dB dynamic range and 192 kHz sampling for professional audio performance.

ARTICLE N° 98434
  • Focusrite Scarlett 18I20 G4
  • Audio interface
  • New generation of the famous Scarlett!
  • MAC and PC compatible
  • Inputs/outputs: 18 inputs / 20 outputs
  • New 4th generation Scarlett preamps: x8
  • Preamp gain: 69 dB
  • Resolution: 24 bits
  • Sampling: 192 kHz
  • Dynamic range: 120 dB
  • Air mode: Analog circuit + DSP + Presence and Harmonic Drive
  • High-end console emulation + ISA preamp
  • Auto Gain + Clip Safe modes: Automatic level management
  • Dynamic indicators for inputs and outputs
  • Low latency monitoring, 6 internal mixes
  • Built-in talkback microphone
  • Connections:
  • Mic / Line inputs: 10x Combo XLR / Jack ∅6.35 mm
  • 48V phantom power
  • MIDI input / output: 2x 5-pin DIN
  • Optical input / output: 4x ADAT
  • S/PDIF input/output: 2x RCA
  • Line outputs: 10x ∅6.35 mm jack
  • Headphone outputs: 2x ∅6.35 mm TRS jack
  • USB-A
  • USB-C ⭢ USB-A cable supplied
  • Software supplied:
  • Quick start tool (Easy Start)
  • Control software: Focusrite Control 2
  • Processing and effects
  • Instrument suite
  • Ableton Live Lite
  • Pro Tools Artist
  • Standard 19" rack format, 1U
With 18 inputs and 20 outputs, the Focusrite Scarlett 18i20 G4 is a complete studio in one interface, an ideal choice for producers looking to manage complex recording sessions.
Its 8 mic preamps offer up to 69dB of gain, allowing you to capture vocals and instruments with great precision, even in the most demanding configurations. ADAT and S/PDIF connections widen the possibilities for expansion, while the 2 separate headphone outputs ensure optimal monitoring, whether you are an engineer or a performer. With its 1U rack design, it integrates easily into any studio environment.

The redesigned Air mode is a key feature of this Scarlett 18i20. Thanks to its analogue circuitry and DSP, it emulates Focusrite's ISA preamp, famous for its precise sound and harmonic details. This mode activates the Presence and Harmonic Drive functions, giving an extra boost to the high frequencies. You can add subtle analogue warmth or make your takes more vibrant, depending on the needs of your mix.

The Auto Gain and Clip Safe modes provide automatic level control and are invaluable tools for fast-paced or multi-tasking sessions. Auto Gain automatically sets the ideal input level, while Clip Safe prevents unwanted clipping. No need to worry about levels during your takes – just focus on the performance. Combined with dynamics meters on each channel, these tools allow you to maintain visual and technical control over every aspect of your recording.

The Scarlett 18i20 also excels when it comes to monitoring. Thanks to a low-latency monitoring system, it offers up to 6 separate internal mixes, each adjustable to the preferences of the engineer or artists. This allows you to tailor the headphone monitors and ensure a smooth, delay-free listening experience. The 2 high-quality headphone outputs ensure optimum comfort during long studio sessions.
Computer connection
 USB
Desktop
 Yes
Maximum resolution
 24 bit
Max sampling frequency
 192
Compatibility
 MacOS, Windows
Micro input
 10
Phantom power
 Yes
Instrument input
 Yes
Line input
 10
Digital input
 S/PDIF Optical, S/PDIF Coaxial
Line output
 10
Headphone output
 2
Digital output
 S/PDIF Optical, S/PDIF Coaxial
MIDI port
 Yes
Word clock
 Yes
Loopback audio
 Yes
Software incl.
 Ableton Live Lite
Power supply
 Mains powered
Focusrite is a British brand founded in 1985 by Rupert Neve, a legendary audio engineer.

Since then, Focusrite has continued to improve its products, now offering the 4th generation of Scarlett, which benefits from advanced technologies, such as ISA preamps and high-end converters.

This continuous evolution makes Focusrite an essential reference for musicians and producers looking for sound quality.

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