Focusrite Clarett+ OctoPre 8-Channel Mic Preamp with ADAT Expansion

The Focusrite Clarett+ OctoPre is a premium 8-channel mic preamp and ADAT expander designed for producers, engineers, and studios that need to expand their existing audio interface with additional high-quality I/O. Featuring Clarett+ preamps with switchable “Air” mode and superior AD/DA conversion, it delivers detailed, open, and dynamic sound capture — ideal for drums, ensembles, and full band recordings.

Key Features

• 8 Clarett+ Mic Preamps – Low-noise, low-distortion preamps with +57 dB of gain and Focusrite’s signature Air mode for brighter, open high-end.

• Professional AD/DA Converters – 24-bit / 192 kHz converters offer exceptional clarity and detail.

• ADAT Optical Connectivity – Expand your existing interface by 8 analog inputs and outputs.

• Analog Outputs on DB25 Connector – Allows simultaneous analog and digital output routing.

• Instrument and Line Inputs – First two channels feature combo XLR/TRS inputs with high-impedance instrument inputs.

• Per-Channel Insert Points – Add outboard compressors, EQs, or other analog gear pre-conversion.

• Comprehensive Metering – 8-channel LED meters for precise input level monitoring.

• Word Clock I/O – Ensures perfect digital sync in professional multi-device setups.

Technical Specifications

• Inputs:

  • 8 × XLR/TRS combo mic/line inputs (channels 1–2 also instrument capable)

  • 8 × balanced analog line outputs (DB25 connector)

  • 1 × ADAT Optical output (8 channels at 44.1/48 kHz; 4 channels at 88.2/96 kHz)

  • 1 × ADAT Optical input (for D/A conversion)

• Dynamic Range (A/D): 118 dB

• Dynamic Range (D/A): 119 dB

• Frequency Response: 20 Hz – 20 kHz ±0.05 dB

• Sample Rate: 44.1 to 192 kHz

• Mic Gain Range: 57 dB

• Phantom Power: 48V (per channel pair)

• Word Clock In/Out: BNC connectors

• Power Supply: External (included)