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.
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.
Features
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
Specifications
Frequency Response 10 Hz – 50 kHz +/- 0.5dB @ +4dBu
Input Connections ¼-inch TS unbalanced
Output Connections XLR male balanced
Input Impedance 50k Ohm
Output Impedance 600 Ohms
Ground Lift Switchable
Input Attenuation Switchable (0dB, -20dB, -40dB)
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)
