Price Match Guarantee MB Quart Reference RA1-750.1 750 Watt Monoblock Amplifier MB Quart Reference series mono subwoofer car audio amplifier featuring innovative sound quality and power technology. The RA1-750.1 is a 750 watt 1 ohm stable car audio amplifier. Reference amplifiers feature DC Sensing to allow any amplifier to be easy integrated into an OEM system by simply adapting a RCA cable from the source unit. Bass remote is included. Product Highlights: Class D MOSFET Monoblock Amplifier Peak Power: 1x750 @ 1 Ohm, 1x500 @ 2 Ohms, 1x300 @ 4 Ohms Frequency Response: 25Hz-250Hz, Built in bass control with 0-12dB boost 4 AWG Power and 12 AWG Speaker Terminal Wire Gauges Stable at 1 ohm Remote Subwoofer Level Control Included Our 30-day money back guarantee