AVENTAGE AV Receivers: Designed to Deliver the Highest Levels of Audio Performance CINEMA DSP HD3 expands the sound field vertically for more thrilling & realistic surround sound Ultra-high performance DACs for superior sound quality Aluminium Front Panel Offers Visual & Aural Benefits Anti Resonance Technology (A.R.T.) Wedge helps to ensure that vibrations do not affect sound quality H-shape cross member frame & rigid bottom frame / double bottom construction 9-channel powerful surround sound & full discrete amp configuration --- 230 W per channel (4 ohms 1 k Hz 0.9 % THD 1 ch driven [ European Model]) --- 150 W per channel (8 ohms 20 Hz-20 k Hz 0.06 % THD 2 ch driven) --- 230 W per channel (8 ohms 1 k Hz 10 % THD 1 ch driven JEITA) MHL supports full HD video & audio from mobile phones & portable devices Network functions such as Air Play Napster®* music streaming service (* Music service availability varies by region.) AV Controller app for operating various functions from a smartphone or tablet FLAC or WAV 192k Hz / 24-bit audio playback High-resolution Music Enhancer further heightens musicality from the original content Advanced HDMI Zone Switching allows unprecedented AV switching to multiple zones HDMI (8 in [1 on front] ) / 2 out) with 3D & Audio Return Channel 4K Ultra HD Pass-through & Upscaling YPAO R.S.C. (Reflected Sound Control) sound optimisation with multi-point / speaker angle measurement Yamaha video processing optimises video content Full LED Backlight Learning & Preset Remote Unit Versatile Zone control such as Zone 2 / 3 / 4 on / off Zone GUI Zone 2 / 3 video assign & Party mode ECO mode operation for about 20% less power consumption