Yamaha RX-V681 7.2-Channel Network A/V Receiver, Black - Newegg.com
User manual Yamaha RX-V781 (English - 155 pages)
Yamaha MusicCast RX-V781 Network AV Receiver 7.2-channel Surround 4K Ultra HD | eBay
Replacement Fit For -yamaha Rav537 Rx-a760 Rx-v681 Rx-v781 Tsr-7810 Audio/video Receiver Remote Control - Remote Control - AliExpress
Amazon.com: HCDZ Replacement Remote Control for Yamaha Aventage RAV537 ZP601200 RX-A760 RX-V681 RX-V781 TSR-7810 RX-V681BL RX-A760BL 7.2-Channel Wi-Fi Network AV Receiver : Electronics
Archimago's Musings: MEASUREMENTS: Yamaha RX-V781 A/V Receiver. Questionable magazine reviews of "high end" amps (D'Agostino). And thoughts on "hardware audiophiles", age and aging.
RX-V781 - Specs - AV Receivers - Audio & Visual - Products - Yamaha - United States
RX-V781 - Videos - AV Receivers - Audio & Visual - Products - Yamaha - United States
Yamaha MusicCast RX-V781 Network AV Receiver 7.2-channel Surround 4K Ultra HD | eBay
RX-V781 - Overview - AV Receivers - Audio & Visual - Products - Yamaha - United States
Yamaha MusicCast RX-V781 Network AV Receiver 7.2-channel Surround 4K Ultra HD | eBay