This feature automatically switches the subwoofer on when it receives a sound input signal and sets it in stand-by again after approximately 20 minutes without an input signal. So, basically this allows you to forget all about the subwoofer once it is connected.

Continuously variable level, phase and cut-off frequency controls make it easy to tune the subwoofer to integrate with virtually any speaker on the market, as well as allowing different placements and personal preferences