ART Pro Audio PDB4 - 4-Channel Passive Direct Box - Manual (Page 4)

4
USING A PDB4
1. Electric guitar and bass pick up output signals
The high impedance signal from a guitar or bass guitar pickup is translated by the
PDB4 into a low impedance balanced signal required by mixing consoles.
Suggested setting – set the input attenuation to 0dB.
2. Keyboards and line level signals
The PDB4 automatically balances and matches the line level outputs of modern
electronic keyboards. If you are using a multiple keyboard setup and your keyboards
are all plugged into a single instrument amplifier, the PDB4 can be used to replace
individual direct boxes. Simply send the output of the instrument amplifier to the PDB4
and then to the console (instead of a separate DI box for each keyboard).
Suggested setting – set the input attenuation to -20dB (line level) or –40dB (amp
level).
3. DJ console output signals
DJ mixers often supply only an unbalanced –10dB signal. The PDB4 converts this
signal to a balanced line level signal before it reaches the console, while providing a
convenient method of connector transition with the capability to run long cables.
Suggested setting – set the input attenuation to 0dB or –20dB.
4. Speaker level signals
The PDB4’s ability to accept speaker level inputs from a power amplifier’s output allows
post-amplifier, post EQ and effects signals to be fed directly to the console. In this
manner, a particular effect or amplifier sound can be sent directly to the mix.
Suggested setting – set the input attenuation to –40dB (amp level).
However you decide to use it, we're sure you'll find the ART PDB4 Four Channel Passive
Direct Box to be an indispensable addition to your audio equipment arsenal.
Diagram of One Channel