collapse expand iconDescription

The PDB4 is a four channel passive direct box that features four fully transformer isolated direct boxes in a 1U 19-inch rack mount chassis. The inputs and outputs of each of the four channels are isolated to maximize channel separation, and transformer isolation on each output helps to eliminate system ground loops. It is a rock solid, roadworthy interface that is ideal 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.
Open Box Art PDB4 Passive Direct Box Level 1
Open Box Art PDB4 Passive Direct Box Level 1

collapse expand iconFeatures

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

collapse expand iconSpecs

  • 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)

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