YAMAHA RXA840T 7.2ch AV Network Receiver with 100W x 7 Power, Built-in Wi-Fi, 4K Up-Scale, CINEMA DSP 3D & YPAO Volume  Superior audio quality 7.2-channel Wi-Fi Built-In AVENTAGE Network AV Receiver, with latest HDMI version with 4K 50/60p support, advanced features such as CINEMA DSP 3D & YPAO Volume, Anti Resonance Technology.  * AVENTAGE AV Receivers: Designed to Deliver the Highest Levels of Audio Performance * Aluminium Front Panel Offers Visual & Aural Benefits * Anti Resonance Technology (A.R.T.) Wedge helps to ensure that vibrations do not affect sound quality * 7-channel powerful surround sound * --- 160 W per channel (4 ohms, 1 k Hz, 0.9% THD, 1 ch driven [ European Model]) * --- 100 W per channel (8 ohms, 20 Hz-20 k Hz, 0.09% THD, 2 ch driven) * --- 160 W per channel (8 ohms, 1 k Hz, 10 % THD, 1 ch driven, JEITA) * Air Play, Napster®*, Spotify®*, JUKE* music streaming service & AV Controller app * * Music service availability varies by region. * FLAC, WAV 192k Hz / 24-bit, Apple Lossless 96k Hz / 24-bit playback & gapless playback compatibility * HTC Connect™ for music streaming from HTC Connect™ compatible smartphones * The latest HDMI version (4K 50/60p compatible, 8 inputs / 2 output incl. Front input) * YPAO R.S.C. (Reflected Sound Control) sound optimisation with multi-point measurement * YPAO Volume to ensure natural sounds even at low volume * Virtual CINEMA FRONT provides virtual surround sound with 5 speakers in front * HDMI Zone B for audio/video streaming to another room * Multi-zone audio support (Zone 2) * Detachable AC power cord for easier installtion * ECO mode operation for about 20% less power consumption