Class D amp with Crown's ultra-efficient DriveCore technology weighs less than 11 lb Higher DSP capabilities: More control; has band pass filter per channel Increased lighting functionality; turn off all LED indicators except clip and thermal to reduce distraction in dark venues Selectable input sensitivity; 1.4Vrms and.775Vrms options so that amp can be driven at full power Set sleep mode after specified time without having to press a button Crown XLS2002 2-Channel 650W Power Amplifier with Onboard DSP