Passive Direct Box with Variable Input Attenuation / Ground Lift

dPDB

Overview

The new dPDB™ Passive Direct Box features two high-quality direct boxes in one portable enclosure. It is a rock solid, roadworthy DI for connection of the outputs of electronic musical instruments (or other audio sources) to the balanced inputs of mixer consoles and other balanced inputs.

It also allows connection of a music source to an instrument amplifier while simultaneously patching it to a mixer. The dPDB™ features switchable Input Attenuation (0 dB, -20dB, -40dB), a 50k ohm Instrument Input, 50k ohm Parallel Link jack, a 600 ohm XLR Output Jack, and a switchable Ground Lift.

The dPDB excels at impedance matching and improving the sound of any instrument plugged into it. The ART dPDB™ is a must-have in any audio tool kit. Enclosed in a rugged steel chassis, it is designed and manufactured to the highest standards to provide years of quiet, reliable performance. dPDB™

Applications:

• 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.

• 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).

• 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.

• Speaker level signals – 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

Features

• 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

• 50k Ohm Instrument Input

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

• 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.

• 600 Ohm XLR Output Jack

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

• Switchable Ground Lift

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

• Stereo Output Capabilities

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

Specifications

• Frequency Response10 Hz – 50 kHz +/- 0.5dB @ +4dBu

• Output Connections600 Ω XLR Output Jack

• Ground LiftSwitchable

• Input AttenuationSwitchable (0dB, -20dB, -40dB)

• Instrument Input50k Ω

• Parallel Link Jack50k Ω

• Dimensions5.75″ x 5″ x 2″