ART PDB4 The PDB4 is a four-channel passive direct box, featuring four high-quality isolation transformers, all housed in a robust 1U rackmount enclosure. Each of the four channels offers a -20dB/-40dB attenuator, ground lift, 1/4" jack input, 1/4" direct input/output, and balanced XLR output. Ideal for both studio and stage applications. DI-Boxes are devices used in pro-audio systems, primarily for signal balancing. Thanks to balancing, the signal becomes up to 90% more resistant to interference, allowing it to be transmitted over long distances. But that's not all. Another very useful function is the separation of input and output signals. In practice, this helps prevent the formation of ground loops. These small devices, long used by professionals, are gaining increasing popularity and interest among those just starting their journey in music, whether on stage or in the studio.

Specifications Input Impedance: 50k Ω Output Impedance: 600 Ω Ground Lift Switch Attenuator: Switchable (0dB, -20dB, -40dB) Input Connectors: 1/4" Output Connectors: XLR Frequency Response: 10 Hz - 50 kHz +/- 0.5 dB @ +4dBu Enclosure: Steel, black Power: Passive device Dimensions (H x W x D): 44.5 x 483 x 152 mm Weight: 2.95 kg