У вашего броузера проблема в совместимости с HTML5
5.2 Channel AV Receiver with Ultra HD Pass-Through; HDCP 2.2, Built-in Bluetooth and Wi-Fi with Dual Subwoofer Preout and Control App
http://www.pioneerelectronics.com/PUSA/Home/AV-Receivers/Pioneer+Receivers/VSX-830-K