Brand new - box has been opened but gear has never been hooked up or used. See technical details here:

SpecificationsOverview

  • ConnectivityUSB type-C
  • ProtocolUSB 2.0
  • Form factorRack mount (1U)
  • Simultaneous I/O18 x 8
  • A/D resolution24-bit/192 kHz
  • Number of preamps4
  • Phantom powerYes
  • Number of pads2
  • Instrument inputs2
  • Line inputs8
  • Analogue outputs4
  • Headphone outputs2
  • Main/alt speaker switchingYes (via software)
  • Digital inputsS/PDIF and ADAT
  • Digital outputsS/PDIF
  • LoopbackYes
  • MIDI I/OYes
  • Bus poweredNo
  • Included PSUYes

Supported sample rates

  • 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz

Microphone inputs

  • Frequency response20Hz - 20kHz ± 0.1dB
  • Dynamic range111dB (A-weighted)
  • THD+N<0.0012%
  • Noise EIN-128dBu (A-weighted)
  • Maximum input level9dBu (at minimum gain)
  • Gain range56dB
  • Impedance3kΩ

Variable line inputs 1-4

  • Frequency response20Hz - 20kHz ± 0.1dB
  • Dynamic range110.5dB (A-weighted)
  • THD+N<0.002%
  • Maximum input level22dBu (at minimum gain)
  • Gain range56dB
  • Impedance60kΩ

Fixed line inputs 5-8

  • Frequency response20Hz - 20kHz ± 0.1dB
  • Dynamic range110.5dB (A-weighted)
  • THD+N<0.002%
  • Maximum input level18dBu
  • Impedance44kΩ

Instrument inputs

  • Frequency response20Hz - 20kHz ± 0.1dB
  • Dynamic range110dB (A-weighted)
  • THD+N<0.03%
  • Maximum input level12.5dBu (at minimum gain)
  • Gain range56dB
  • Impedance1.5MΩ

Line/monitor outputs

  • Dynamic range (line outputs)108dB
  • THD+N<0.002%
  • Maximum output level (0 dBFS)15.5dBu
  • Impedance430Ω

Headphone outputs

  • Dynamic range104dB (A-weighted)
  • THD+N<0.002%
  • Maximum output level7dBu
  • Impedance<1Ω

Compatibility

  • WindowsIntel, AMD, and Arm64 processors supported
  • macOSApple Silicon and Intel processors supported

ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.Learn more
Brand
Model
  • Scarlett 18i8 3rd Gen USB Audio Interface
Finish
  • Red / Black
Categories
Year
  • 2019 - Present
Made In
  • United Kingdom
Computer Connectivity
  • USB
Sample Rate
  • 192 khz
Bus-Powered
  • No
Digital Input Format
  • S/PIDF
  • ADAT/Optical
Electronics
  • Digital
  • Analog
  • Solid State
Compatibility
  • macOS
  • Windows
Format
  • Desktop Standalone
Digital Output Format
  • S/PIDF
Bit Depth
  • 24-bit
Number of Channels
  • 24
Number of Digital Outputs
  • 2
Simultaneous I/O
  • 18 x 6
Number of Headphone Outputs
  • 2
Number of MIDI Outputs
  • 1
Number of MIDI Inputs
  • 1
Number of Digital Inputs
  • 10
Number of Analog Outputs
  • 4
Number of Analog Inputs
  • 8
Number of Mic Preamps
  • 4

Product safety information may be available here.

Digimarek

Tallinn, Estonia
Joined Reverb:2026

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