The JDK Audio R24 Dual Channel, 4-band equalizer, features two identical channels of equalization in a rack mounted unit with internal power supply. The eq features continuously variable adjustment of frequency and gain using individual controls.
Features:
4 bands of equalization modeled after the classic APSI model 562 EQ
Each band offers continuously variable control of frequency and gain, using separate knobs
12 dB of boost/cut per band
All 4 bands are peak/dipping parametric configuration
Custom transformer balanced output
Fully balanced 1/4" and XLR input and output
High headroom +24 dB clip level
The EQ-R24 offers two channels of professional signal equalization. Modeled after the circuitry of classic high end EQ's, the R24 delivers an affordable combination of rugged construction and solid performance. EQ in and out are controlled by classic toggle switches, with gain and frequency selection accessed using individual control knobs.

 Inputs:       Balanced XLR and 1/4" parallel jacks
  Outputs:       Transformer Balanced XLR and 1/4" parallel jacks  
  (All measurements with 600 Ohm output load)
  Bandwidth:       +/- 0.5db, 20Hz - 20kHz
  THD+N @ 1kHz, +4dbu:       0.01%
  Maximum Level:       +23dbu
  Signal-to-Noise Ratio:       -100db
  EQ Bands:       4 bands, all +/-12db Peak/Dip type
  Lo:       20Hz - 200Hz
  Lo-Mid:       100Hz - 1kHz
  Hi-Mid:       500Hz - 5kHz
  Hi:       2kHz - 20kHz
  Current:       65mA, 7.3VoltAmps
  Dimensions:       2U EIA 19" Rack
  Height:       3.5 Inches
  Width:       19 Inches
  Depth:       10 Inches
  Weight:       13 lbs
  Input Impedance:       12K Ohms
  Output Impedance:       300 Ohms Transformer Balanced