Product details:

ST4.1200D Stealth Series 1200W Channel Class D Motorcycle Car Audio Boats, ATVs, Side-by-Sides, Golf carts Amplifier + Absolute 4Gauge Amp Kit Dont let these little monsters fool you. The latest and greatest of class D full-range technology allows us to pack 10 pounds of KICK YOUR ASS in less than 2-pound chassis. Once regarded as dirty power, class D's stable performance, thanks to high power capability, maximum efficiencies, and low tolerance components, rivals traditional full-range applications. Minimal power requirements, ultra-micro footprint, unbelievable sound quality, and easy installation make Stealth amplifiers great for any car, motorcycle, boat, or off-road vehicle... Using an Original or Factory Radio? No Problem, this amplifier is equipped with an Automatic Hi-Level Signal Sensing Turn-On. No need to run a remote wire to turn it on, this amplifier will detect the signal and turn it on and off automatically. (Hi-Level Input only) General Features: Total power output: 1,200watts 2-Ohms: 150 Watts x 4 channels 4-Ohms: 100 Watts x 4 channels 4-Ohms/Bridged: 300 Watts x 2 channels High-Efficiency Class D Full-Range Amplifiers Hybrid Aluminum Alloy Heatsink for Optimum Dissipation 2-ohm Stereo & 4-ohm Bridged Full-Range Operation MOSFET Power Supply w/ Audiophile Grade IRTM Transistors Military Grade SMT PCB Maintains Dynamic Performance Direct Short, Thermal, & Overload Circuits Protect Amplifier 200mV-12V High-Level or Low-Level RCA Input Automatic Turn-On Hi-Level Signal Sensing Quick Disconnect RCA/High-Level Wire Harness Quick Disconnect Power and Speaker Output Harness Variable 12dB High Pass, Low Pass, & Subsonic Crossovers Amplifier Dimensions 3′′W x 1.5′′H x 7.75′′W Weight: 1.90lbs ?Warning:This product can expose you to, known to the State of California to cause cancer.