DB Drive A61200.4 4 x 110W Okur A6 Series 4-Channel Class AB Amplifier: * 4 x 110W * Class AB circuitry * Audiophile grade components * High-efficiency MOSFET design * Continuously variable 12dB per octave high pass crossover * Continuously variable 24dB per octave low pass crossover * Continuously variable 18dB bass boost * Buffered preamp input * Subsonic filter * Variable input level control * DC short-circut protection * Drivesink heat management system