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JDK Audio R20

Two-channel mic preamp

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JDK Audio by API
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Our Price: $1,015.75

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Product Description
Additional Information
  • Product Description

    The JDK Audio MP R-20 is a dual channel, high quality microphone preamp, designed from the ground up by API's design team to offer a versatile high quality input for Mmicrophones as well as instruments.

    Each channel features both a mic and an instrument input, with switched phantom power, phase and pad.  Metering is traditional analog VU.


    • Dual mic preamplifiers with 54 dB of gain
    • Custom analog VU meters for monitoring output level
    • Front panel, high-impedance instrument input with 45 dB of gain
    • Peak indicator
    • Pad switch attenuates the microphone signal by 20 dB, or the instrument signal by 10 dB
    • Switchable 48v phantom power
    • Low distortion, low noise circuitry
    • Fully balanced output, both 1/4" and XLR

    The MP-R20 provides two channels of premium analog microphone pre-amplification designed to provide a low noise, solid front end for all audio applications. Meticulously detailed and solidly constructed, the R20 features custom analog VU meters and hands-on analog control of the gain level.  Individual toggle switches control the selection of 48v, polarity, pad and a mic/instrument switch.


    • Inputs: Balanced XLR mic jack (rear) Un-balanced 1/4" instrument jack (front)
    • Outputs: Balanced XLR and 1/4" parallel jacks
    • Microphone Input
      • Gain: +55db (no pad), +36db (w/pad)
      • Min Gain: +9db (no pad), -10db (w/pad)
      • Pot gain range: 46db
      • Pad: -20db
      • Input impedance: 6.8K Ohms
      • THD+N @ 1Khz, +4dbu: 0.013%
      • Bandwidth: +/- 0.5db, 20hz - 50Khz
      • THD+N @ 1Khz, +4dbu: 0.013%
      • Maximum level: +20dbu
      • Signal-to-noise ratio: -90db
    • Instrument Input
      • Max gain: +31db (no pad), +21db (w/pad)
      • Min gain: +10db (no pad), 0db (w/pad)
      • Pot gain range: 21db
      • Pad: -10db
      • Input impedance: 500K Ohms
      • Bandwidth: +/- 0.5db, 20hz - 20Khz
      • THD+N @ 1Khz, +4dbu: 0.002%
      • Maximum level: +20dbu
    • Signal-to-noise ratio: -80db
    • Current: 65mA, 7.3 VoltAmps
    • Dimensions: 2u EIA 19" rack
    • Height: 3.5"
    • Width: 19"
    • Depth: 10"
    • Weight: 12 lbs
  • Additional Information

    Condition New
    Channels Dual-Channel
    Chassis 19-in Rackmount
    Rack Spaces 2u
    Direct Input Yes
    Digital I/O No
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