JDK Audio V14
Equalizer, 500 Series, 4-band, single channel


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The JDK Audio V14 is an extremely high quality,; single channel 4-Band Equalizer designed for the popular API VPR500 Rack format.

The eq features continuously variable adjustment of frequency and gain on dual concentric pots, with an eq in/out switch.


  • 4 bands of equalization modeled after the classic APSI model 562 EQ
  • Each band offers continuously variable control of frequency and gain
  • 12 dB of boost/cut per band
  • All 4 bands are peak/dipping parametric configuration
  • Custom transformer balanced output
  • High headroom +24 dB clip level
  • Designed to fit API's 500 VPR Rack or Lunchbox®

JDK Audio's V14 offers a single channel of professional signal equalization in the popular 500 VPR format. Modeled after the circuitry of classic high end EQ's, the V14 delivers an affordable combination of rugged construction and solid performance. The V14 also features EQ in and out switch, plus dual concentric knobs which provide continuously variable control of boost/cut and frequency selection.

  I/O:    Balanced Input and Output through VPR Rack 
  (All measurements with 600 Ohm output load)
  Bandwidth:    +/- 0.5db, 20Hz - 50kHz
  THD+N @ 1kHz, +4dbu:    0.01%
  Maximum Level:    +24dbu
  Signal-to-Noise Ratio:    -102db
  EQ Bands:    4 bands, all +/-12db Peak/Dip type
  Lo:    20Hz - 200Hz
  Lo-Mid:    100Hz - 1kHz
  Hi-Mid:    500Hz - 5kHz
  Hi:    2.2kHz - 20kHz
  Current:    30mA, 3.4VoltAmps
  Dimensions:    1 VPR Alliance Slot
  Height:    5.25 Inches
  Width:    1.5 Inches
  Depth:    7 Inches
  Weight:    1.5 lbs
  Input Impedance:    12K Ohms
  Output Impedance:    300 Ohms Transformer Balanced
  (Specifications subject to change without notice)


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Radial Engineering's Workhorse 500 Features: 500 series 8 slot rack with 8x2 summing mixer Backwards compatible Plenty of current for power-hungry modules Dual output headphone buss for monitoringThe Radial Workhorse is a modular ...

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List Price: $1,650.00
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