[07/19/2015] Denon AVR-X3100W 7.2聲道視聽擴大機 ，Denon AVR-X3100W 7.2 Channel Full 4K Ultra HD A/V Receiver with Bluetooth and Wi-Fi，支援4K超高解析度，支援藍芽與無線上網，定價$999，目前特價$499 USD。Prime境內免運費。哪裡買: amazon。