Scarlett OctoPre

Eight-channel mic preamp with ADAT connectivity

The Scarlett OctoPre is the ideal 8-channel expansion for any Scarlett — or other digital interface with ADAT inputs. ADAT is a simple and easy way of increasing the number of simultaneous recording channels available in your studio. With eight channels of Focusrite's 2nd generation Scarlett preamps and precision A-D conversion at sample rates up to 192 kHz, Scarlett OctoPre is the ideal way of increasing the number of inputs in your studio. It also offers eight balanced line outputs, sourced directly from their respective mic preamps for use on stage in a live environment.

Eight natural-sounding 2nd generation Scarlett mic/line inputs deliver high headroom, plenty of clean gain, low noise and minimal distortion — ideal for tracking drums as well guitars, keyboards, vocals and more. The front panel features two newly-designed instrument inputs with extended headroom. ADAT outputs let you connect to any interface or digital system with ADAT optical inputs, and analogue line outputs let you feed an analogue console at the same time as recording with the digital outputs.

Key Features

• Eight natural-sounding 2nd generation Scarlett mic preamps
• Eight balanced line inputs
• Focusrite precision A-D conversion up to sample rates of 192 kHz
• Dual front-panel instrument inputs
• Pad on every channel for extra headroom — ideal for loud sources such as drums
• Eight balanced line outputs — ideal for live use
• Accurate 5-segment LED input metering
• Simple ADAT connectivity via optical cables
• 48V Phantom power available on every channel for condenser mics
• State-of-the-art digital clocking with Word Clock I/O for synchronisation with external devices

Specifications

Supported sample rates

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

Microphone inputs

• Frequency response: 20Hz - 20kHz +0.5/-1.5dB
• Dynamic range: 109 dB (A-weighted)
• THD+N: <0.001%
• Noise EIN: -127 dBu
• Maximum input level (without pad): +8 dBu
• Maximum input level (with pad): +16 dBu
• Gain range: 50 dB
• Input impedance: 3 kΩ

Line inputs

• Frequency response: 20Hz - 20kHz +0.5/-1.5dB
• Dynamic range: 109 dB (A-weighted)
• THD+N: <0.002%
• Maximum input level: +22 dBu
• Gain range: 50 dB
• Input impedance: 49 kΩ

Instrument inputs

• Frequency response: 20Hz - 20kHz +0.5/-1.5dB
• Dynamic range: 108 dB (A-weighted)
• THD+N: <0.01%
• Maximum input level: +13 dBu
• Gain range: 50 dB
• Input impedance: 1 MΩ

Line outputs

• Maximum output level (0 dBFS): +16dBu @ 0dBFS, or >21dBu where ADAT output is not used
• THD+N: <0.001%
• Ouput impedance:
• 136 Ω (balanced) - for units with serial number ≤ W860083007515
• 576 Ω (balanced) - for units with serial number > W860083007515