4 Channel HED Full Range Class-D Amplifier Upgrade your vehicle’s sound system with the Cerwin-Vega H800.4D HED Series 4-Channel Full Range Class-D Amplifier, a high-performance car audio amplifier designed to deliver powerful output, exceptional clarity, and long-lasting reliability. Built for audio enthusiasts who demand both performance and efficiency, the HED Series amplifier combines advanced engineering with Cerwin-Vega’s legendary sound heritage. The H800.4D 4-channel amplifier utilizes h
