PDB4
4-Channel Passive Rackmount DI
The PDB4 is a four-channel passive DI in a 1U rackmount format. It is ideal for connecting multiple unbalanced instrument, line, or speaker signals to balanced inputs.
Each input signal is sent to a balanced, transformer-isolated XLR output and a parallel Thru jack, so it can simultaneously be connected to an amplifier on stage.
All channels feature a switchable ground lift to help eliminate hum, and switchable attenuation with up to 40 dB of gain reduction to handle high signal levels.
As a fully passive design, the PDB4 doesn’t require an external power source. Passive DIs are often a great match for powered sources such as synthesizers or guitars and basses with active preamps.
Features
- 4 Independent Channels
- 1/4" TRS Inputs and Thru Connectors
- Transformer-Isolated Balanced XLR Outputs
- Switchable Ground Lift per Channel
- Switchable Attenuation (0 dB, -20 dB, -40 dB) per Channel
- Passive Design - No Power Required
- 1U Rackmount Enclosure
Specifications
| Active or Passive | Passive |
| Inputs | 4x 1/4" TRS |
| Outputs | 4x XLR 4x 1/4" TRS Thru |
| Input Impedance | 50 kΩ |
| Output Impedance | 600Ω |
| Controls | Attenuator (0 dB, -20 dB, -40 dB) Ground Lift (All per Channel) |
| Frequency Response | 10 Hz - 50 kHz +/- 0.5 dB @ +4 dBu |
| Power Requirements | N/A |
| Dimensions (HWD) | 1.75 x 19 x 6 4.4 cm x 48.3 cm x 15.2 cm |
| Weight | 6.5 lbs / 2.95 kg |
Specifications subject to change without notice
The PDB4 is a four-channel passive DI in a 1U rackmount format. It is ideal for connecting multiple unbalanced instrument, line, or speaker signals to balanced inputs.
Each input signal is sent to a balanced, transformer-isolated XLR output and a parallel Thru jack, so it can simultaneously be connected to an amplifier on stage.
All channels feature a switchable ground lift to help eliminate hum, and switchable attenuation with up to 40 dB of gain reduction to handle high signal levels.
As a fully passive design, the PDB4 doesn’t require an external power source. Passive DIs are often a great match for powered sources such as synthesizers or guitars and basses with active preamps.
Features
- 4 Independent Channels
- 1/4" TRS Inputs and Thru Connectors
- Transformer-Isolated Balanced XLR Outputs
- Switchable Ground Lift per Channel
- Switchable Attenuation (0 dB, -20 dB, -40 dB) per Channel
- Passive Design - No Power Required
- 1U Rackmount Enclosure
Specifications
| Active or Passive | Passive |
| Inputs | 4x 1/4" TRS |
| Outputs | 4x XLR 4x 1/4" TRS Thru |
| Input Impedance | 50 kΩ |
| Output Impedance | 600Ω |
| Controls | Attenuator (0 dB, -20 dB, -40 dB) Ground Lift (All per Channel) |
| Frequency Response | 10 Hz - 50 kHz +/- 0.5 dB @ +4 dBu |
| Power Requirements | N/A |
| Dimensions (HWD) | 1.75 x 19 x 6 4.4 cm x 48.3 cm x 15.2 cm |
| Weight | 6.5 lbs / 2.95 kg |
Specifications subject to change without notice