Behringer HD400 Ultra-Compact 2-Channel Hum Destroyer

The Behringer MicroHD HD400 is an ultra-compact 2-channel hum destroyer. It removes AC hum and noise quickly and reliably, and breaks ground loops safely without compromising sonic quality. Each of the two independent channels can process a mono signal or combine to handle a stereo signal. The unit automatically converts unbalanced to balanced signals without signal loss.