The ART PDB4 Rackmount 4-Channel Passive Direct Boxis designed for studio and live performance applications. The 1RU 19" rackmountable passive device features four fully transformer isolated direct boxes with inputs and outputs isolated from one another to maximize channel separation and remove system ground loops. It can be used to connect the 1/4" outputs of electronic music instruments and other audio sources to the balanced XLR inputs of a mixing console or other balanced audio equipment.

Each channel features a front panel 1/4" input, a 1/4" pass thru, and an input attenuation switch with 0 dB, -20 dB, -40 dB settings and accepts a frequency response of 10 to 50,000 Hz. Each channel features a back panel balanced XLR-3M output for connecting to a mixing console or preamplifier for recording as well as a ground lift switch.

Four Fully Isolated Channels    0 dB, -20 dB, and -40 dB Attenuation Pad    50 kΩ Instrument/Line Input    50 kΩ Parallel Link Jack    600 Ω XLR Output Jack    10 to 50,000 Hz Frequency Response    Switchable Ground Lift    Connects 1/4" Sources to Mixing Console    1U 19" Rackmountable Chassis

Related Questions and Answers

Q: 1. ground lift switch positions which lifts ground?

A: Yes, the DIB-443 has a built-in ground lift. Best regards, Hosa Support.

Q: 2. ProAV1 Can this unit output to a laptop's 1/8 microphone input for recording audio from a mixer?

A: No. The Pro AV1 converts consumer input (1/8) to balanced out (XLR) - the opposite of what you want. Radial makes the J-ISO and Pro-ISO that will do what you want. The J-ISO uses a Jensen transformer and is the one you want for studio recording. The J-PRO is good for broadcast use for recording vocal range audio and is cheaper than the J-PRO.

Q: 3. Does it send signal out of both outputs simultaneously (like a splitter)?

A: Yes, it does. When splitting, you will lose a bit of the treble, but it's not a huge difference. I use it in that regime--sending two signals out of it to different gear. Let me know if you want to know more. Good luck.

Q: 4. Can this box also be used as a re-amping device? Using the XLR output as an input?

A: This device can not be used as a re-amping device. The XLR connection is only meant for a mic level output send to a mixer or interface.

Q: 5. What is the input impedance on this box? I need 1M Ohm or higher.

A: The input impedance is specified as 50k ohms on the PDI-40 Direct Box.

Q: 6. Anything the other way round? I need something affordable with Low-Z input and Hi-Z output - the opposite of this device.

A: Perhaps you can use the Hosa Technology Impedance Transformer XLR Female Mic Lo-Z to Instrument 1/4" Male Hi-Z (B&H # HOMIT43) or Audix T50K Impedance-Matching Transformer (B&H # AUT50K) if you can work with an XLR Low-Z input.

Q: 7. does this unit provide phantom power to condenser microphones?

A: The ART Direct X is not designed for microphone input and will not provide phantom power.

Q: 8. I have Yamaha MWC12 mixer and would like to record directly with a videa camcorder using beachtec DXA-2T. Can I use the RCA rec out or Dual TRS out to connect to this box and connect to DXA-2T via xlr cable and record stereo sound? Thanks.

A: The Radial PRO AV1 is a single channel output unit that sums the incoming stereo signal to a balanced mono output.

Q: 9. Can I take phone calls using a rca to 3.5 mm out to phone?

A: By using this device with a smartphone, the caller could be sent to a mixer/ recorder directly. The caller could be recorded on a separate track of audio on a recorder. The caller would only hear you through the mic of the phone, as though you were on speaker phone. To make the call recording easier and have the caller here your mics audio, you may want to purchase this new Zoom podcasting recorder: B&H # ZOPTP4PCREC.

Q: 10. headphones?

A: This unit is not designed to be used with headphones.