400 x 4 MAX @ 2 Ohms300 x 4 RMS @ 2 Ohms600 x 2 RMS @ 4 Ohms1600 WATTS MAX2 X 20 AMP FUSERemote bass knob MOSFET Power Bridgeable Trimode Operation Hi/Low Level Inputs Variable Bass Boost Hi/Low Pass CrossoverDimensions (WxHxL) 10" x 2¼" x 12?"