PCBB⁴ As with PCBB3 eliminates hum problems when connecting audio from your presentation PC. Hum can happen anywhere. You don’t have to be running your audio signal a long distance. Power supplies, lighting and all sorts of equipment can cause noise that is picked up by your audio input cables. With the no compromise bandwidth of 20Hz to 20khz.

In addition PCBB⁴ comes with a plug and socket input lead to aid replacement when damaged. Now DC blocking in its XLR circuitry to prevent damage from DC voltages
 
Main Features
– DC blocking on output to prevent damage with DC voltages
– Lower output impedance for better noise immunity
– Stereo/Mono selection switch.
– 20Hz to 20kHz bandwidth.
– 32dB pad switch allows audio to be connected to a desk on either Line or Mic inputs.
– Earth (Ground) isolation ensures that ground loops are easily defeated.
– Left/Right XLR output connectors are standard for live events audio.
– Compact size.
– No power required (passive) – always ready to go
– Captive lead ensures easy connection every time, now with plug and socket to aid service.

Specifications:
– Power: None required
– Signals: Typical input 0dB 1V RMS unbalanced stereo audio, Bandwidth 20Hz-20kHz, Signal levels depend on input level and output impedance.

Control Switches:
– Output Pad from –6dB/ -35dB
– Earth (Ground) Lift
– Stereo to Mono

Connections:
– Input 3.5mm mini stereo jack with internal plug and socket to help servicing of these units ~ requires dismantling.
– Output 2 x male XLR

Dimensions (inch) D x W x H:
– Main unit: 71mm (2 8/10”) x 64mm (2 1/2”) x 40mm (1 6/10”) – Weight 218g (8oz)
– Captive lead length: 1.8m (6ft)

Accessories:
– Pencil case to hold and protect the PCBB⁴

Warranty:
3 Year Limited Factory Warranty

Please Note: XLR cables and not included as standard.