The HD400 features two channels allowing you to eliminate hum in two mono signals or one stereo signal. Placing the HD400 in-line between your stereo mixer and power amps for a squeaky-clean sound free of AC hum. It breaks ground loops safely while maintaining the highest sound quality. It can even convert your unbalanced signals into balanced ones without any signal degradation.
Removes AC hum and noise - fast, easy and reliable
Breaks ground loops safely, while keeping the highest sonic quality
2 independent channels for 2 mono or 1 stereo signal
Automatically converts unbalanced to balanced signals without signal loss
Designed and engineered in Germany