MCM Electronics

Four Channel Direct Box Rack Mount By Applied Research Technology (PDB4) MCM Part #555-15435

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4-Channel Passive Direct Box

The PDB4 is a four channel passive direct box that features four quality fully transformer isolated direct boxes in a 1U 19-inch rack mount chassis. Inputs and outputs of each of the four channels are isolated to maximize channel separation. Transformer isolation on each output helps to eliminate system ground loops.

Specifications Top

It is a rock solid, roadworthy interface for connecting outputs of electronic musical instruments (or other audio sources) to the balanced inputs of mixer consoles and other balanced audio products.

The PDB4 also allows connection of a music source to an instrument amplifier while simultaneously patching it to a mixer.

  • Four Fully Isolated Channels
  • Switchable Input Attenuation
  • (0dB, -20dB , -40dB)
  • 50k Ohm Instrument/Line Input
  • 50k Ohm Parallel Link Jack
  • 600 Ohm XLR Output Jack
  • Switchable Ground Lift
  • 1U 19-inch Chassis

Input Impedance 50k Ohm
Output Impedance 600 Ohms
Ground Lift Switchable
Input Attenuation Switchable (0dB, -20dB, -40dB)
Input Jacks ¼-inch TS unbalanced
Output Jack XLR male balanced
Frequency Response 10 Hz - 50 kHz +/- 0.5dB @ +4dBu
Chassis Type All steel black finish
Power Requirements None Totally Passive
Dimensions 1.75" x 19" x 6" (44.5mm x 483mm x 152mm)
Weight 6.5 lbs. (2.95 kg)
Part Numbers
MCM Part #:555-15435
Applied Research Technology Part #:PDB4
Package Specifications & Dimensions
Weight:5.5 lbs.
RoHS Comp:No
Warranty:365 days
Need to Return?
Length:22 in.
Width:9.75 in.
Height:3 in.
Shipping Information
Extra Shipping Charge:No
Drop Ship:No

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