BPX15005 - 80 Watts RMS x 4 + 500 Watts @ 2 Ohm Full Range 5 Channel AmplifierThe BLADE X "BPX SEIRES" Series Amplifiers are designed with our Live, Loud, and Play Hard motto. All amplifiers have built in OEM line converters with RCA inputs that can take a high level speaker signal at up to 9 Volts directly in. By sensing the DC offset of a factory radio the amplifier can activate the ATO (Auto Turn On) feature and convert the 12V turn on into a 12V switched out. All Blade X amps use Mil Spec PCBs, SMD parts, 5 way protection,