User Manual

Thank you for purchasing the ART Dual Passive Direct Box. This rock solid, roadworthy DI Box is a dual version

of our popular PDB. It allows for the connection of the outputs of electronic musical instruments (or other audio

sources) to the balanced inputs of mixer consoles. The dPDB also allows connection of a music source to an

instrument amplifier while simultaneously patching it to a mixer via the dPDB.

Features:

1. Switchable Input Attenuation

* 0dB for electric guitar and bass pickups

* -20dB for line level signals, such as keyboards and CD players

* -40dB for speaker feeds

2. 50k Ohm Instrument Input

The dPDB matches the signal level and impedance with unity gain, without any adverse effects on the source

signal.

3. Parallel Link jack

The 50k ohm parallel link jack output enables you to connect the output from the dPDB directly to power

amplifiers without a separate preamplifier.

4. 600 Ohm XLR Output Jack

The 600 ohm XLR output jack enables you to send a balanced signal to a mixing console.

5. Switchable Ground Lift

A switchable ground lift is provided to help eliminate hum caused by ground loops.

6. Stereo Output Capabilities

Perfect for various stereo applications such as keyboard(s) or guitar(s).

Applications:

1. Electric guitar and bass pick up output signals

The high impedance signal from a guitar or bass guitar pickup is translated by the dPDB 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 dPDB 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 dPDB

can be used to replace individual direct boxes. Simply send the output of the instrument amplifier to the dPDB 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 dPDB 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

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Thank you for purchasing the ART Dual Passive Direct Box. This rock solid, roadworthy DI Box is a dual version of our popular PDB. It allows for the connection of the outputs of electronic musical instruments (or other audio sources) to the balanced inputs of mixer consoles. The dPDB also allows connection of a music source to an instrument amplifier while simultaneously patching it to a mixer via the dPDB. Features: 1. 2. 3. 4. 5. 6.
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The dPDB’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). Service: The following information is provided in the unlikely event that your unit requires service. 1) Be sure that the unit is the cause of the problem.