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JDK Audio R20
Microphone Preamp, Dual Channel

OUR PART #:  R20-JDK

The JDK Audio R20 is a dual channel, high quality microphone preamp...
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Our Price: $1,135.25
List Price: $1,195.00
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JDK Audio R20
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The JDK Audio R20 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 microphones 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.

Features:

  • 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 R20 provides 2 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.


  Specifications:
  Inputs:    Balanced XLR Mic jack (rear)
  Un-Balanced 1/4" Instrument jack (front)
  Outputs:    Balanced XLR and 1/4" parallel jacks
  Microphone Input
  Max 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
  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, 7.3VoltAmps
  Dimensions:    2U EIA 19" Rack
  Height:    3.5 Inches
  Width:    19 Inches
  Depth:    10 inches
  Weight:    12 lbs
  (Specifications subject to change without notice)

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