x Q Class, 2 channel car amplifier with digital signal processing comes with TWEEQ tuning software to help dial in your ideal audio. This KICKER IQ amplifier has a black aluminum chassis for durability and blending with other components, a blue LED light that lets you know the unit is on and ready to produce powerful sound, variable 10 to 200Hz active crossover and Under|Over voltage indicator. 125 watts RMS x 2 125 watts RMS x 2 at 4 ohms |250 watts RMS x 2 at 2 ohms|, 500 watts RMS x 1 bridged at 4 ohms |4 ohm stable in bridged mode|