Remote Subwoofer Level Control.
Signal to noise ratio (SNR): 105 DB.
B-channels: 4.
Classification: Class AB.
RMS output power: 640 W;
PMPO Output Power: 1600 W;
Bridgeable: Yes.
Rated Power @ 4 Ohm: 4 x 160 W;
Bridged power @ 4 Ohm: 2 x 800 W;
Dimensions: 2.6" H x 6.5" w x 13.3" D.