The latest digital amplifier models from Sonance feature a 50% larger power supply than the competition to deliver up to 200 Watts per channel when bridged. Their robust power supply allows for more dynamic power and astonishing performance. Each Sonance digital amplifier includes two Bus inputs with a pass through feature to allow multiple amplifiers to be linked. The Bus A includes a Subwoofer Output with a selectable crossover filter to support a separately powered subwoofer. The Bus allows the output to be looped into a local channel or bridged, and send a high powered low frequency signal directly to a passive subwoofer. The Bus inputs can also be selectively mixed with local inputs for applications like doorbell signal or paging.