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Buzz Audio QSP 20
4-Channel Mic Preamp

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Excellent value class-A multi-channel microphone preamp equipped with Lundahl output transformers.

  • 4-channel microphone preamp and DI
  • Switchable 48v, -20dB pad, impedance and mute
  • Frequency response: 10Hz - 200kHz (mic), 10Hz - 120kHz (line) both @ 20dB gain
  • Max. gain: +70dB (mic), +60dB (inst), +29dBu (output)
  • Min gain: +22dB (mic), +12dB (line)
  • Harmonic distortion: 0.15% @ 100Hz, 0.01% @ 1kHz (mic)
  • Noise: -131dB A-weighted (mic), -76dB (inst)
  • Impedance: 4k ohms/1k2 ohms (mic), 1MEG ohms (inst)
  • 1U rackmountable

The QSP20 acts as a perfect canvas for any combination of microphones and/or instruments. A healthy amount of headroom and low-noise gain ensures that all mic models from ribbons to large diaphraghm condensers will be well catered for, whilst class-A DI circuitry offers an extremely clean signal path for any instrument with a pickup you'd care to record.

View product on the Buzz Audio website.

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  • £1983.20

    Millennia's quad channel version of the acclaimed HV3D offering optimum ambience retrieval.

    • Quad-channel variant
    • Frequency response: sub 3 Hz to beyond 300 kHz
    • THD: < .001%, Typ. < .0005% (< 5 ppm)
    • Noise: -133 dB EIN
    • Phase response: < 2 degrees deviation
    • Common mode rejection: > 65 dB, Typ > 85 dB
    • Gain: 8.5 dB min, 65 dB (up to 75 dB on request) max
    • Output impedance: 24.3 Ohms (x2)
    • Max output: +32 dBu
    • 19" rackmountable


Available to order (more info)
Usually delivered within 7 working days
  • 14-day money-back guarantee
  • For all items ordered online or over the phone, we offer the statutory 14 day “cooling off period”. This means that if you are unhappy with the goods for whatever reason, you can return them for a full refund within this period.

    Please note, however, that certain items are exempt from this – see our Terms and Conditions for more info.

  • 1 year warranty
  • This product comes with a 1 year warranty as standard.

    Please note that you will need to register your product with the manufacturer to qualify for any warranty beyond 12 months.

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