Prime 750 Watt Mono Amplifier R2-750X1 Primed for Performance, the R2-750X1 amplifier is a 750 watt, Class-D, capable of operating at 4Ω, 2Ω or 1Ω mono. This amplifier is extremely efficient because of its Class-D technology which reduces demand on the vehicles electrical system. The amp also features C.L.E.A.N. circuitry to help you adjust your gain settings, a P.O.W.E.R. Supply that generates more power as voltage increases, and integrated Punch EQ that corrects for acoustic deficiencies while delivering up to 3X the bass. For subwoofers, a variable infrasonic filter and remote level control allows you to tune the bass for the desired level for the music.The Prime Series were developed for car audio fanatics that want a reliable amplifier – with all the power and performance you’ve come to expect from Rockford Fosgate – at an economical price. Rockford Fosgate amplifiers are renowned world-wide for being “under rated,” easily surpassing all specifications, and most importantly, generating more power than their ratings. These 3rd generation of Prime Series amplifiers are refined with the latest Rockford Fosgate technology for easy setup and configuration, making them perfect for use with factory audio or custom aftermarket systems.FEATURES AT A GLANCE Variable Input Gain adjustment level High Level Input Capable Balanced Differential Inputs with RCA Pass Through Outputs Auto-Sense bypass switch for vehicles with RAP (Retained Accessory Power) Includes RLC Remote Level Control Cast aluminum heat sink Class-D Topology CEA-2006 Compliant & CE Compliant Top Mounted Control Panel Continuously Variable On Board Punch EQ Features C.L.E.A.N. Set-up Short Circuit & Over Current Protection Rollback Protection Fully Adjustable 12 dB/octave High and Low pass Butterworth Crossovers Variable Infrasonic Filter 1 Year Warranty SPECIFICATIONS Cta-2006 Compliant Remote Controls Yes Number of Channels 1 Visual Indicators POWER (Blue) / PROTECT (Red) C.L.E.A.N. IN (Red) C.L.E.A.N. OUT (Blue/Red) Total Power (Sum of Rated Power) 750 Watts PC5:D17ower Wire Gauge 4 AWG Rated Power (RMS Continuous Power) 250 Watts x 1 @ 4Ω 500 Watts x 1 @ 2Ω 750 Watts x 1 @ 1Ω Power Input Connector Compression Terminal Block Dynamic Power (PVC/PowerCube®) 300 Watts x 1 @ 4Ω 545 Watts x 1 @ 2Ω 830 Watts x 1 @ 1Ω Speaker Wire Gauge 8 AWG Bridgeable No Speaker Output Connector Compression Terminal Block Frequency Response 20 Hz - 250 Hz Cooling Convection Input Sensitivity Low-Level: 150 mV - 4 V High-Level: 450 mV - 12 Heatsink Circuit Topology Class Class-D Operating Voltage 9 - 16 VDC Efficiency (average) Recommended Fuse (not included) 120 A Total Harmonic Distortion (THD+Noise) 4Ω: