Memphis 16-PRX5.550 5-Channel 600W RMS Component Speakers SUBWOOFERS Amplifier Memphis 16-PRX5.550 600 Watt 5 Channel Car Audio Stereo Amplifier High Current MOSFET Power Supply 'Frequency Response: 20Hz - 20kHz High Current Mosfet Power Supply Power Handling RMS: 4 ohm- 50 Watts x 4 Channels + 200 Watts x 1 Channel 2 ohm- 75 Watts x 4 Channels + 300 Watts x 1 Channel Bridged Mono Power 4 ohm- 150 Watts x 2 Channels Dimensions: 15.4 Remote Level Control Included High Pass / Low Pass Filters Variable Infrasonic Filter