Yamaha RX-A8A AVENTAGE 11.2CH AV ReceiverFlagship Quality Parts The A8A incorporates the CX MX A5200's concept, architecture, and materials for elevated performance. Double bottom plate ensures stability for unnecessary vibrations, while the thick copper foil for the circuit board achieves lower impedance. This AV receiver also comes equipped with a customized capacitor and 11ch capability. High Quality Digital Components Qualcomm QCS407 takes your AV receivers audio performance to the next