The Focusrite Scarlett OctoPre is an eight-channel microphone preamplifier with 24-bit/192kHz A-D conversion and ADAT optical output, designed to expand the input count of any audio interface with ADAT connectivity.

Preamp Details

Built around eight of Focusrite's 2nd generation Scarlett preamps, the OctoPre delivers 109dB of dynamic range and -127 dBu EIN across all channels. Each channel accepts mic or line signals via rear-panel combo XLR/TRS jacks, and a switchable pad adds 8dB of headroom for loud sources like drum kits. Two front-panel 1/4" instrument inputs handle guitar and bass with extended headroom. 48V phantom power is available on all eight channels, switchable in banks of four.

Analog Outputs

Eight balanced 1/4" TRS line outputs on the rear panel mirror the input signals, allowing the OctoPre to serve double duty as a standalone preamp for live sound while simultaneously sending digital audio to your DAW via ADAT.

ADAT Output

• Dual TOSLINK optical ports
• 8 channels at 44.1/48 kHz (single cable)
• 8 channels at 88.2/96 kHz (two cables required, channels 1-4 and 5-8)
• 4 channels at 176.4/192 kHz (two cables required, channels 1-2 and 3-4)
• Word Clock I/O (BNC) for synchronization with external devices

Included Software

• Focusrite Red 2 and Red 3 Plug-in Suite
• Softube Time and Tone bundle

Specifications

• Mic Preamps: 8x 2nd generation Scarlett, 50dB gain range
• Mic Dynamic Range: 109dB (A-weighted)
• Mic EIN: -127 dBu
• Mic THD+N: less than 0.001%
• Max Mic Input Level: +8 dBu (+16 dBu with pad)
• Line Input Max Level: +22 dBu
• Instrument Inputs: 2 front-panel 1/4", 1M ohm impedance
• Line Outputs: 8x balanced 1/4" TRS, max +16 dBu (or +21 dBu with ADAT unused)
• Metering: 5-segment LED per channel
• Phantom Power: 48V, switchable in banks of 4
• Sample Rates: 44.1, 48, 88.2, 96, 176.4, 192 kHz
• Form Factor: 1U rackmount

What's in the Box

• Scarlett OctoPre
• IEC power cable
• 4 self-adhesive feet for tabletop use
• Getting Started Guide