Focusrite OctoPre MkII
8-Channel Microphone Preamplifier


Our Price: $499.99
List Price: $599.99
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With eight channels of Focusrite pre-amplification and a built-in 24-bit / 96 kHz ADAT output, OctoPre MkII is Focusrite’s powerful input upgrade for your Pro Tools system, or any digital audio workstation. It’s also a great expansion for any analogue or digital console, or hard disk recorder.

The digital output allows users to make the most of often-neglected ADAT inputs; ideal for expanding the number of mic-pre inputs on your interface. Connect OctoPre MkII to your audio interface’s ADAT input to create a high quality, multi-channel recording solution, ideal for tracking drums, as well guitars, keyboards, vocals and more.

Focusrite OctoPre MkII Features:

  • Eight High Quality Award-winning Focusrite Pre-amps
  • Built-in eight channel 24-bit / 96 kHz digital output:  Make the most of your interface’s ADAT input. OctoPre connects via its built-in lightpipe output, with a ‘real world’dynamic range performance of 110dB.
  • Mic-pres optimised for tracking drums:  OctoPre MkII is designed not to clip, with pre-amps optimised to handle extreme levels from sound sources like kick drum and snare.
  • Two quality Hi-Z instrument inputs:  OctoPre MkII’s first two channels feature DI’s, ready for you to plug in your Guitars and Bass, instantly accessible on the front fascia.
  • 5 LED input metering on every channel:  OctoPre MkII’s fast-acting 5-LED input meters provide clear reference of input levels, helping you to avoid analogue or digital clipping.
  • -10dB Pads on every channel:  OctoPre MkII is drum-ready, with 10dB pads to stop hot signals from overdriving the microphone pre-amp.
  • Direct outputs on every channel:  For routing and flexibility, especially in the live environment. Each mic-pre can be routed to the mixer’s analogue channels, with two mirrored ADAT outputs (44.1) left free to send to digital recorders.
  • 48V Phantom power available on every channel:  Switched in two groups (1-4 and 5-8) every channel is capable of supplying phantom power, for use with most condenser microphones.
  • State-of-the-art Clocking Solutions:  OctoPreMkII's internal clock delivers a jitter performance of < 10 PPM. For external clocks, a BNC connector is provided and industry-standard JetPLLâ„¢ jitter elimination technology is employed.

Focusrite OctoPre MkII Specifications

  • Mic Input
    • Frequency Response: 20Hz - 20kHz +/- 0.1 dB.
    • THD+N: 0.001% (measured at 1kHz with a 20Hz/22kHz bandpass filter).
    • Noise: EIN > 125dB (128dB analogue to digital): measured at ~60dB of gain with 150 Ohm termination (20Hz/22kHz bandpass filter).
    • Mic Gain: +10dB to + 55 dB
    • Input Pad: ~-10 dB
    • Phantom power switched in 2 x 4 channel groups (1-4 and 5-8)
    • Maximum input level: +8 dBu (+17 dBu with pad on input)
  • Line Input
    • Frequency Response: 20Hz - 20kHz +/- 0.1dB.
    • THD+N: < 0.001% (measured with 0dBFS input and 22Hz/22kHz bandpass filter).
    • Noise: -90dBu (22Hz/22kHz bandpass filter).
    • Line 1-8 Gain: -10 dB to +36 dB
    • Line maximum input level: +22 dBu
  • Instrument Input
    • Frequency Response: 20Hz - 20kHz +/- 0.1dB.
    • THD+N: 0.004% (measured with 0dBu input and 20Hz/22kHz bandpass filter).
    • Noise: -87dBu (20Hz/22kHz bandpass filter).
    • Instrument Gain: +10 dB to +55 dB
    • Maximum input level: +8 dBu
  • Analogue Output
    • Frequency Response: 20Hz – 20kHz +/- 0.2dB.
    • THD+N < 0.0010% (-100dB) (measured with 0dBFS input 22Hz/22kHz bandpass filter, un-weighted).
    • Nominal output level @ 0dBFS: 16 dBu, balanced
  • Digital
  • A/D Dynamic Range 110dB 'A-weighted' (all inputs).
    • JetPLLâ„¢ Technology providing superb jitter reduction for class leading converter performance.
    • Clock Jitter < 250 pico seconds.
    • Sample Rate Clock Accuracy: +/- 20PPM.
    • Sample rates: 44.1kHz to 96kHz.
    • Clock Sources: Internal and Word Clock.
  • Weight: 3.6 kg / 7.93 lbs
  • Dimensions: 484mm / 19"(W) x 45mm /1.8"(H)x 265mm / 10.4"(D)
  • Front and Rear Connectivity
    • Analogue Channel Inputs:
      • 2x Mic / Line / Instrument inputs on the front panel (Instrument selected via front panel button)
      • 6x Mic / Line inputs on the rear panel. Switches automatically between Mic (XLR) and Line (TRS)
    • Analogue Channel Outputs:
      • 8x Balanced 1/4" TRS Jack on the rear panel
    • Digital Channel Outputs:
      • 2x ADAT Lightpipe (TOSLINK) outputs. Provides 8 channels per port (16 total) at 44.1 and 48kHz.
      • Provide 4 channels per port (8 total) at 88.2 and 96kHz (S-MUX).
      • *Note that when running at 44.1 or 48kHz, the digital outputs are mirrored, providing outputs 1 - 8 on both ports.
  • Front Panel Indicators:
    • 8x Five segment input LED meters (-42, -18, -6, -3 and 0dBFS)
    • 4x Sample Rate LED's (44.1k, 48k, 88.2k and 96k)
    • 2x Sync Source LED's (Internal and Word Clock)
    • 'Lock' indicator LED
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