ART PDB4 Four-Channel Passive Direct Box

Put this 4-channel passive DI box in your rack, plug in your Hi-Z instruments (guitars, basses, keyboards, etc.) and feed them to your mixer's Lo-Z inputs.

The ART 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.


- 4-Channel Passive Direct Box
- 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
WARNING: Cancer and Reproductive Harm -

Dimensions and Weight in Packaging
Base Item
Shipping Weight: 5 lbs
Shipping Dimensions: 22 x 10 x 3 in
Manufacturer Part Number (MPN): PDB4

For support or warranty questions, please contact the manufacturer:
Phone: 716-297-2920

Reviewers gave this product an overall rating of 3.5 out of 5 stars. (1 ratings)
Submitted May 12, 2014 by Mark R in Groton, CT

"Perfect for my needs"

Overall: 3.5 out of 5 stars
(see rating details)
Verified Customer zZounds has verified that this reviewer made a purchase from us.
I needed to get rid of stage clutter caused by having four direct boxes for the acoustic guitars used in my duo. The ART PDB4 does just that by having the inputs on the front and the the XLR outputs in the back, we just plug into the ART and leave the connections inside the rack pluged in. The only drawback that I have found, is the unit was picking up noise from the power supply for my mixer. I just moved things around in the rack and the noise went away. You probably wouldn't get any noise from the Radial rack mounted direct box, but it's $800 and the ART is $80. Overall, this piece works well and is a very good value.

Musical Background:

Professional musician and sound engineer for 40 years

Musical Style:

Open to all styles of music
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