The S800.4 Stroker 800 WATT 4-CH Amplifier is a 4-channel beast that is all about pure brute strength and power. Delivering high-output performance, this model can run your entire car audio system with ease. Utilizing a hard core double layer FR-4 PCB circuit board with a new high-mass, high-density alloy heatsink design, this amplifier is solid as a rock. With the Self Diagnostic Analysis (SDA) feature, its built-in microprocessor is intelligent enough to control the amplifiers internal fault protection and be able to troubleshoot and let the user know of any installation issues that has developed. With the Recovering Thermal Management System (RTMS), the S800.4 Stroker 800 WATT 4-CH Amplifier will run efficiently and at cool temperatures. The S800.4 Stroker 800 WATT 4-CH Amplifier is the perfect complement to Strokers world class subwoofers. The S800.4 features Vega Bass equalization circuit for the best low frequency reproduction possible.