Eliminate Audio Hum with the PCBB4
The PCBB4 is a passive, bi-directional audio interface that eliminates hum when connecting your presentation PC to professional audio systems.
Audio hum can come from many sources such as power supplies, fluorescent lights, or nearby electronic equipment. These can introduce unwanted noise into your audio cables and affect sound quality.
The PCBB4 requires no external power or batteries and offers seamless matching between unbalanced and balanced audio sources. It features no-compromise bandwidth of 20Hz to 20kHz, DC blocking on XLR outputs to protect against DC voltages, and a lower output impedance for improved noise immunity. All of this is packed into one rugged and versatile unit.
It provides a simple and reliable way to connect consumer audio devices, such as computers or media players, to balanced AV sound systems. Inputs and outputs are fully isolated in both directions. The built-in Ground Lift switch allows you to eliminate ground loop noise with ease. The input lead now features a plug and socket design to make replacement straightforward if damaged.
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