The Focusrite Scarlett 18i20 3rd Gen is a powerful 18-in/20-out USB audio interface designed for professional-grade studio recording. Featuring 8 Scarlett mic preamps with Air mode, 24-bit/192kHz converters, dual ADAT I/O, and built-in talkback mic, it delivers pristine sound and flexible routing. Rack-mountable and equipped with high headroom instrument inputs, speaker switching, and anti-thump tech, it’s ideal for bands, producers, and content creators seeking high channel count and uncompromised audio quality.
At-a-Glance Highlights
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18 inputs / 20 outputs with 24-bit/192kHz converters for high-resolution recording
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8 Scarlett mic preamps with Air mode for enhanced vocal clarity
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Dual instrument inputs with high headroom and 4 monitor outs with speaker switching
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Built-in talkback mic for easy communication in the studio
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Expandable via dual ADAT I/O for up to 8 additional channels
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Rack-mountable design with 3-year Focusrite warranty
Supported Sample Rates
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44.1 kHz
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48 kHz
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88.2 kHz
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96 kHz
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176.4 kHz
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192 kHz
Microphone Inputs
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Frequency Response: 20 Hz – 20 kHz ±0.1 dB
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Dynamic Range: 111 dB (A-weighted)
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THD+N: <0.0012%
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Equivalent Input Noise (EIN): -128 dBu (A-weighted)
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Max Input Level: 9 dBu (at minimum gain)
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Gain Range: 56 dB
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Impedance: 3 kΩ
Line Inputs
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Frequency Response: 20 Hz – 20 kHz ±0.1 dB
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Dynamic Range: 110.5 dB (A-weighted)
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THD+N: <0.002%
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Max Input Level: 22 dBu (at minimum gain)
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Gain Range: 56 dB
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Impedance: 60 kΩ
Instrument Inputs
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Frequency Response: 20 Hz – 20 kHz ±0.1 dB
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Dynamic Range: 110 dB (A-weighted)
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THD+N: <0.03%
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Max Input Level: 12.5 dBu (at minimum gain)
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Gain Range: 56 dB
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Impedance: 1.5 MΩ
Line / Monitor Outputs
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Dynamic Range: 108 dB (line outputs)
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THD+N: <0.002%
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Max Output Level (0 dBFS): 15.5 dBu
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Impedance: 430 Ω
Headphone Outputs
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Dynamic Range: 104 dB (A-weighted)
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THD+N: <0.002%
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Max Output Level (0 dBFS): 7 dBu
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Output Impedance: <1 Ω
