The versatile PX series power amplifiers combine intelligent processing with high output Class-D amplifiers to meet the requirements of a vast range of sound reinforcement environments. Onboard signal processing includes Yamaha's intelligent D-CONTOUR multi-band dynamic processing for the input signals as well as output processing which includes limiter, delay, filter, crossover & parametric EQ. Set-up is easy and intuitive with presets for Yamaha passive speakers (CBR, Club, Installation, and VXS/VXC series). 800W x 2 at 8 ohms. 1050W x 2 at 4 ohms.