Amplifier 擴音機 / Yamaha / RX-A850

7.2-channel AVENTAGE network AV receiver with Dolby Atmos® for 3D surround sound realism. Enjoy high-resolution audio playback and access to online music services with built-in Wi-Fi or use the phono input to reconnect with your vinyl collection.


‧ AVENTAGE build standards designed to deliver the highest level of audio performance
‧ Aluminum front panel and Anti-Resonance Technology Wedge
‧ Bluetooth®, built-in Wi-Fi and Wireless Direct for wireless music streaming
‧ AirPlay®, Spotify®, Pandora® music streaming service and AV Controller App
‧ DSD 2.8 MHz / 5.6 MHz, FLAC / WAV / AIFF 192 kHz / 24-bit, Apple® Lossless 96 kHz / 24-bit playback
‧ YPAO™ - R.S.C. with multipoint measurement
‧ Dolby Atmos® Support
‧ Multi-zone audio support (Zone2)
‧ Phono input for vinyl playback
‧ Virtual Surround Back Speaker for playing 7.1-channel content with a 5.1-channel system
‧ HDMI 2.0a: 4K Ultra HD video upscaling with HDCP 2.2 and high dynamic range (HDR) support


Rated Output Power (1kHz, 2ch driven):110 W (8 ohms, 0.9% THD)
Rated Output Power (20Hz-20kHz, 2ch driven):100 W (8 ohms, 0.06% THD)
Maximum Effective Output Power (1kHz, 1ch driven) (JEITA):160 W (8 ohms, 10% THD)
Dynamic Power per Channel (8/6/4/2 ohms):130 / 170 / 195 / 240 W
DSP Programs:17
Dialog Level Adjustment:Yes
Virtual Presence Speaker:Yes
Virtual Surround Back Speaker:Yes
Dialogue Lift:Yes (no presence speakers required)
Dolby Atmos:Yes
Dolby TrueHD:Yes
Dolby Digital Plus:Yes
Dolby Pro Logic IIx:Yes
DTS-HD Master Audio:Yes
Pure Direct:Yes (with video on mode)
Compressed Music Enhancer:Yes (including for Bluetooth®)
YPAO multi-point measurement:Yes (R.S.C)
YPAO Volume:Yes
Adaptive DRC (Dynamic Range Control):Yes
Initial Volume & Maximum Volume Setting:Yes
A.R.T. Wedge:Yes
Bi-amp capability:Yes
Audio Delay:Yes (0-500 ms)
192kHz/24-bit DACs for all channels:Yes (Burr-Brown)
4K Ultra HD Pass-through and upscaling:Yes (4K 60p 4:4:4)
HDMI 3D pass-through:Yes
HDMI Audio Return Channel:Yes
HDMI upscaling:Yes (analog to HDMI, HDMI to HDMI)
Deep Color/x.v.Color/24Hz Refresh Rate /Auto Lip-Sync:Yes
HDMI Input/Output:8 in / 2 out (HDCP 2.2: 3 in / 2 out)
HDMI CEC:Yes (SCENE, Device Control)
USB Input:iPod® / iPhone®, USB memory, portable audio player
Network Port:Yes
Wi-Fi:Yes (with Wireless Direct)
Bluetooth:Yes (AAC)
Front AV Input:HDMI / USB / Analog Audio / Composite Video
Digital Audio Input/Output: Optical:2 / 0
Digital Audio Input/Output: Coaxial:2 / 0
Analog Audio Input/Output:6 (front 1) / 1
Phono Input:Yes
Component Video Input/Output:2 / 1
Composite Video Input/Output:5 (front 1) / 1
Headphone Output:Yes
FM/AM Tuner:Yes
On-screen display:Graphical User Interface
SCENE:SCENE (4 sets)
App Control:Yes (iPhone® / iPad® / Android™ phone / tablet)
Web Browser Control:Yes
Remote Control Unit:Yes
Zone 2 Audio Output:Line output
Powered Zone:Zone 2
Zone B Output:Yes (HDMI)
RS-232C Interface:Yes
+12V Trigger Output:1
Remote (IR) Input/Output:1 / 1
Party Mode:Yes
Standby Power Consumption (IR only):≤0.1 W
Auto Power Standby:Yes
ECO mode:Yes
Dimensions (W x H x D):17-1/8" x 6-3/4" x 15" (with antenna up: 17-1/8" x 9-1/4" x 15")
Weight:23.4 lbs.