Yamaha RX-A550 vs Yamaha RX-A850

       
       

      Highlights

      • 5.1 Channels
      • 5.1 Channel Processing
      • 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      • 4K/60Hz Passthrough
      • Wi-Fi, Bluetooth, Ethernet

      Highlights

      • 7.2 Channels
      • 7.1 Channel Processing
      • 100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      • Dolby Atmos
      • HDR10
      • 4K/60Hz Passthrough, 4K/60Hz Upscaling
      • Wi-Fi, Bluetooth, Ethernet
      • Phono Input

      Disclosure: We earn money from the affiliate links to products associated with content in this article.

      1. Overview

      Here we are comparing Yamaha RX-A550 to Yamaha RX-A850 to reveal their common strengths and weaknesses as well as the differences between them which will help you in making a correct decision before the purchase. The Yamaha RX-A550 has 5 channel and the Yamaha RX-A850 has 7 channel amplifiers with Yamaha RX-A550's being less powerful.


      Yamaha RX-A550 Yamaha RX-A850

      Yamaha RX-A550 was introduced in 2015. It is equipped with 5 channel amplifier with 80 W (8 Ω, 20 Hz - 20 kHz and 2 channel driven) power per channel and is capable of 5.1 maximum channel processing. It , passes 4K/60Hz and upscales up to 1080p video signal.

      Yamaha RX-A850 was introduced in 2015. It is equipped with 7 channel amplifier with 100 W (8 Ω, 20 Hz - 20 kHz and 2 channel driven) power per channel and is capable of 7.1 maximum channel processing. It supports Dolby Atmos, passes 4K/60Hz and upscales up to 4K 60p 4:4:4 video signal.


      We evaluated Yamaha RX-A550 and Yamaha RX-A850 and gave them scores of 72 and 85 out of 100 recpectively. Our ranking system is based on the amplifier specifications, audio and video features, connectivity, multizone capabilities, radio and many other details.

      Yamaha RX-A550

      Yamaha RX-A850

      Amplifier
      79
      Amplifier
      89
      Audio Features
      69
      Audio Features
      81
      Video Features
      69
      Video Features
      83
      Connectivity
      80
      Connectivity
      87
      Zones
      55
      Zones
      81
      Radio
      79
      Radio
      84
      OVERALL
      72
      OVERALL
      85

      For more details about the ranking please go to    Evaluations section.

      2. Pros and Cons

      In this section we present pros and cons of Yamaha RX-A550 and Yamaha RX-A850.

      PROS

      Yamaha RX-A550

      Yamaha RX-A850

      •   DSD via HDMI
      •   Auto Speaker Calibration System with Mic.
      •   New HDCP Version
      •   Wi-Fi
      •   Bluetooth
      •   Works with Amazon Alexa
      •   USB Input
      •   Composite Video Inputs
      •   Component Video Inputs
      •   Ethernet
      •   Analog Tuner
      •   Spotify
      •   Dolby Atmos
      •   DSD via HDMI
      •   Auto Speaker Calibration System with Mic.
      •   HDR10
      •   New HDCP Version
      •   Analog To HDMI Upconversion
      •   Wi-Fi
      •   Bluetooth
      •   Works with Amazon Alexa
      •   8 HDMI Inputs
      •   USB Input
      •   Phono Input
      •   RCA Pre-Outs
      •   Composite Video Inputs
      •   Component Video Inputs
      •   Ethernet
      •   Analog Tuner
      •   Spotify

      CONS

      Yamaha RX-A550

      Yamaha RX-A850

      •   Few Channels - 5.1
      •   Low Power Output - 80 W
      •   5.1 Channel Processing
      •   No Dolby Atmos
      •   No Dolby Atmos Height Virtualization
      •   No DTS:X
      •   No IMAX Enhanced
      •   No Auro 3D with Auro-Matic Upmixer
      •   No HDR10
      •   No HDR10+
      •   No Dolby Vision
      •   No eARC
      •   No 8K Passthrough
      •   1 HDMI Outputs
      •   0 8K Input
      •   No Phono Input
      •   No RCA Pre-Outs
      •   No Zones
      •   No Digital Radio
      •   No Pandora
      •   No Tidal
      •   Bluetooth 2․1 + EDR
      •   No Front Wide Channel Support
      •   No Dolby Atmos Height Virtualization
      •   No DTS:X
      •   No IMAX Enhanced
      •   No Auro 3D with Auro-Matic Upmixer
      •   No HDR10+
      •   No Dolby Vision
      •   No eARC
      •   No 8K Passthrough
      •   0 8K Input
      •   No Digital Radio
      •   No Pandora
      •   No Tidal
      •   Bluetooth 2․1 + EDR


      And here are some specifications which fall into average criteria and are neither in PROs nor in CONs category:

      AVERAGE

      Yamaha RX-A550

      Yamaha RX-A850

      •   6 HDMI Inputs
      •   RCA Line Inputs
      •   7.2 Channels
      •   Power Output - 100 W
      •   7.1 Channel Processing
      •   2 HDMI Outputs
      •   RCA Line Inputs
      •   2 Zones

      3. Advantage of Yamaha RX-A850

      This section shows those features and specifications which are the reason to choose Yamaha RX-A850 over Yamaha RX-A550.

      Check the Price

      Yamaha RX-A550 vs Yamaha RX-A850
      More Channels 5.1 vs 7.2
      Higher Power Output 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) vs 100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      Certified 4 Ω Performance vs
      Bi-amp capability vs
      More Channel Processing 5.1 vs 7.1
      Dolby Atmos vs
      Dolby Surround Upmixer vs
      Dolby Pro Logic PLII vs PLIIx
      Dolby Digital EX vs
      Dialog Level Adjustment vs
      Dialog Normalization vs
      Dialogue Lift vs no presence speakers required
      YPAO Volume vs
      HDR10 vs
      Video Signal Upscaling up to 1080p vs up to 4K 60p 4:4:4
      Analog To HDMI Upconversion vs Component**, Composite
      More HDMI Inputs 6 vs 8 (1 front)
      More HDMI Outputs 1 vs 2
      More Optical Inputs 1 vs 2
      More RCA Line Inputs 4 (1 AUX Jack in the front) vs 5 (1 front)
      Phono Input vs
      More RCA Pre-Outs 0.1 vs 7.2
      More Composite Video Inputs 4 vs 5 (1 front)
      Front A/V Inputs USB, mini-jack vs HDMI, USB, Analog Audio, Composite Video
      Detachable Power Cord vs
      More Zones 1 vs 2
      Zone B Video Output vs HDMI
      RS-232C Interface vs
      +12V Trigger Output vs 1
      Remote (IR) Input/Output 0 / 0 vs 1 / 1
      Web Control vs
      SiriusXM vs
      More Speaker Terminals 5 vs 9
      More Large Speaker Terminals 5 vs 9
      Bigger Power Supply 260 W vs 300 W
      Higher Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC) 80 W (0.09% THD) vs 100 W (0.06% THD)
      Higher Power Output (8 Ω, 1 kHz, 2 channel Driven, FTC) 95 W (0.9% THD) vs 110 W (0.9% THD)
      Higher Rated Power Output (8 Ω, 1 kHz, 1 channel Driven) [] vs 130 W (0.9% THD)
      Higher Maximum Effective Output Power (8 Ω, 1 kHz, 1 channel Driven, JEITA) [] vs 160 W (10% THD)
      Higher Dynamic Power per Channel, 2 Ω, Front) 160 W vs 240 W
      Higher Dynamic Power per Channel, 4 Ω, Front) 130 W vs 195 W
      Higher Dynamic Power per Channel, 6 Ω, Front) 110 W vs 170 W
      Higher Dynamic Power per Channel, 8 Ω, Front) [] vs 130 W

      4. Common Strengths and Weaknesses

      We already listed pros and cons of each model. However, you may also find useful to look at their common strengths and weaknesses shown side-by-side.

      STRENGTHS Yamaha RX-A550 Yamaha RX-A850
        DSD via HDMI 2-ch/Multi-ch Input 2-ch/Multi-ch Input
        Auto Speaker Calibration System with Mic. YPAO sound optimization YPAO sound optimization (R.S.C. with Multipoint measurement)
        New HDCP Version2.22.2
        Wi-Fi with Wireless Direct with Wireless Direct
        Bluetooth
        Works with Amazon Alexa on MusicCast (Voice control using your Alexa device like Echo, Dot, Tap and Show) on MusicCast (Voice control using your Alexa device like Echo, Dot, Tap and Show)
        USB InputiPod® / iPhone®, USB memory, portable audio playeriPod® / iPhone®, USB memory, portable audio player
        Composite Video Inputs45 (1 front)
        Component Video Inputs22
        Ethernet
        Analog Tuner FM/AM FM/AM
        Spotify
      WEAKNESSES Yamaha RX-A550 Yamaha RX-A850
        No Dolby Atmos Height Virtualization
        No DTS:X
        No IMAX Enhanced
        No Auro 3D with Auro-Matic Upmixer
        No HDR10+
        No Dolby Vision
        No eARC
        No 8K Passthroughup to 4K/60p 4:2:0up to 4K/60p 4:4:4
        Few 8K Inputs
        No Digital Radio
        No Pandora
        No Tidal
        Old Bluetooth Version2․1 + EDR2․1 + EDR

      5. Amplifier

      Yamaha RX-A550 Yamaha RX-A850

      5 channel Amplifier: Yamaha RX-A550 features 5 channel power amplifier. It is rated at 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven).

      7 channel Amplifier: Yamaha RX-A850 features 7 channel power amplifier. It is rated at 100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) and is able to drive 4 ohm speakers.



        AMPLIFIER Yamaha RX-A550 Yamaha RX-A850
        Channels5.17.2
        Power Output80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
        THX™ Certification
        Continuous 6 Ω Rated
        Certified 4 Ω Performance
        Bi-amp Capability

        Check the Price

        6. Speaker Configurations

        Yamaha RX-A550's and Yamaha RX-A850's amplifiers can be assigned for different speaker configurations.

        • Dolby Atmos Configurations: The following speaker configurations are supported for Dolby Atmos:
        • Yamaha RX-A550: Not supported.
        • Yamaha RX-A850: 5.2.2 with internal amplifier.
        • Configurations without height channels: There are also other speaker configurations available which do not include height channels:
        • Yamaha RX-A550: 5.1 with internal amplifier.
        • Yamaha RX-A850: 5.2, 7.2 with internal amplifier.
        • Bi-Amp: Yamaha RX-A850 is able to bi-amp up to 2 main channels simultaneously. During bi-amplification two amplifiers are used for one speaker. One amplifier powers the midrange and tweeter section of the speaker and another amplifier powers the low frequency woofers. Each amplifier is less loaded and performs better. In order to use this feature speakers must have 2 pairs of connectors.

        7. Immersive Audio Formats

        Dolby Atmos

        Yamaha RX-A850 supports Dolby Atmos.

        • Dolby Surround Upmixer: Yamaha RX-A850 supports Dolby Surround Upmixer. If the content is not mixed in Dolby Atmos then the Dolby surround upmixer will expand the audio to all channels including ceiling speakers. The upmixer has replaced the Dolby Pro Logic II family with improved upmixing algorithms.
        AUDIO DECODING Yamaha RX-A550 Yamaha RX-A850
        Dolby Atmos
        Dolby Atmos Height Virtualization
        Dolby Atmos Music
        Dolby TrueHD
        Dolby Digital Plus
        Dolby Surround Upmixer
        Dolby Pro Logic PLII PLIIx
        Dolby Digital EX
        DTS:X
        DTS Neural:X
        DTS Virtual:X
        DTS Neo Neo:6 Neo:6
        DTS-HD Master Audio
        DTS-HD High Resolution Audio
        DTS 96/24
        DTS Express
        DTS-ES Discrete 6.1, Matrix 6.1 Discrete 6.1, Matrix 6.1
        IMAX Enhanced
        Auro 3D with Auro-Matic Upmixer

        Check the Price

        8. HDMI

        Yamaha RX-A550 comes with 6 HDMI inputs. It has 1 output.

        Yamaha RX-A850 comes with 8 HDMI inputs. It has 2 outputs which work parallelly and output the same signal.

        • 4K/60Hz Passthrough: On both receivers all inputs pass up to 4K/60p 4:2:0 video signal.
        • 1080p Upscaling on Yamaha RX-A550: It can upscale up to 1080p from HDMI sources.
          4K Upscaling on Yamaha RX-A850: It can upscale up to 4K 60p 4:4:4 from HDMI and analog sources.
        • Analog To HDMI Upconversion: Yamaha RX-A850 supports analog to HDMI Upconversion, so you can input your analog video sources and output them digitally via HDMI. This means that you will need only one HDMI cable to connect to your TV.
        • HDCP 2.2 Copy Protection: Both receivers are HDCP 2.2 compliant which is a requirement for 4K/HDR copy-protected content transmission.
        • 3D Ready: Both receivers are able to pass 3D video through HDMI.

        HDR (High Dynamic Range)

        Yamaha RX-A550 does not support HDR.

        Yamaha RX-A850 supports HDR10 High dynamic range video has greater dynamic range than standard dynamic range (SDR) video with brighter whites and deeper blacks. The result is greater contrast and more details in dark and bright areas, better color and depth.



        VIDEO FEATURES Yamaha RX-A550 Yamaha RX-A850
        HDR10
        HDR10+
        Dynamic HDR
        BT.2020 color space
        Dolby Vision
        HLG (Hybrid Log Gamma)
        HDBaseT Compatible
        Enhanced Audio Return Channel (eARC)
        HDCP Version2.22.2
        QMS (Quick Media Switching)
        ALLM (Auto Low Latency Mode)
        VRR (Variable Refresh Rate)
        QFT (Quick Frame transport)
        3-D Ready
        Video Signal Passthroughup to 4K/60p 4:2:0up to 4K/60p 4:4:4
        Video Signal Upscaling up to 1080p up to 4K 60p 4:4:4

        Check the Price

        9. Inputs and Outputs

        Audio

        • Phono Input: There is an MM phono input on Yamaha RX-A850 with built-in phono stage for connecting the moving magnet cartridge output of the turntable directly to the receiver.
        • Analog Pre-Outs: Yamaha RX-A850 has 7.2 preamplifier outputs which allows you to connect the receiver to the external power amplifier. You may want to use a high quality external amplifier for certain channels, usually for front L/R and center, and use the receiver to power the rest.
        • Analog Line Inputs: There are 4 pair of line inputs on Yamaha RX-A550 and 5 pair of line inputs on Yamaha RX-A850 for connecting sources with analog outputs.
        • Digital Inputs: 1 optical input and 2 coaxial inputs are available on Yamaha RX-A550 and 2 optical inputs and 2 coaxial inputs are available on Yamaha RX-A850 for digital audio connections.
        • Headphone Output: There is a 6.3 mm (1/4") headphone output jack on the front panel of each receiver.

        Video

        • HDMI:
        • Yamaha RX-A550
          Inputs:
          6   Outputs: 1
          8K Inputs: 0.
        • Yamaha RX-A850
          Inputs:
          8 (1 front)   Outputs: 2
          8K Inputs: 0.
        • Composite Video: Connect you VCR, Laserdisc player and other old video equipment with composite video cables.
        • Yamaha RX-A550
          Inputs:
          4   Outputs: 1.
        • Yamaha RX-A850
          Inputs:
          5   Outputs: 1.
        • Component Video: Component video connection gives you the higher quality video compared to the composite video connection. So in case your old DVD player and other equipment do not have an HDMI output but have Component video output use this connection over the composite one. Both receivers support up to 1080i resolution on Component video connectors.
        • Yamaha RX-A550
          Inputs:
          2   Outputs: 1.
        • Yamaha RX-A850
          Inputs:
          2   Outputs: 1.

        Front A/V Inputs

        • Yamaha RX-A550: USB, mini-jack
        • Yamaha RX-A850: HDMI, USB, Analog Audio, Composite Video

        Yamaha RX-A550

        Image cannot be found Image cannot be found

        Yamaha RX-A850

        Image cannot be found Image cannot be found
        TERMINALS Yamaha RX-A550 Yamaha RX-A850
        HDMI Inputs68 (1 front)
        HDMI Outputs12
        8K Inputs
        USB InputiPod® / iPhone®, USB memory, portable audio playeriPod® / iPhone®, USB memory, portable audio player
        USB DC Out Port
        Optical Inputs12
        Optical Outputs
        Coaxial Inputs22
        RCA Line Inputs4 (1 AUX Jack in the front)5 (1 front)
        RCA Line Outputs
        XLR Line Inputs
        Phono Input
        Multi-Channel Input
        RCA Pre-Outs0.17.2
        XLR Pre-outs
        Composite Video Inputs45 (1 front)
        Composite Video Outputs11
        S-Video Inputs
        S-Video Outputs
        Component Video Inputs22
        Component Video Outputs11

        Check the Price

        10. Evaluations

        We evaluated Yamaha RX-A550 and Yamaha RX-A850 and gave them scores of 72 and 85 out of 100 recpectively. We also gave separate scores for 7 different categories according to the available features and specifications some of which are listed below. These evaluations are relative and may change each time a new receiver is added to the database.


        Yamaha RX-A550

        Yamaha RX-A850

        OVERALL
        72
        OVERALL
        85

        Amplifier

        GOOD
        79
        •   Few Channels - 5.1
        •   Low Power Output - 80 W
        EXCELLENT
        89
        •   7.2 Channels
        •   Power Output - 100 W

        Audio Features

        AVERAGE
        69
        •   Few Channels - 5.1
        •   5.1 Channel Processing
        •   No Dolby Atmos
        •   No Dolby Atmos Height Virtualization
        •   No DTS:X
        •   No IMAX Enhanced
        •   No Auro 3D with Auro-Matic Upmixer
        •   DSD via HDMI
        GOOD
        81
        •   7.2 Channels
        •   No Front Wide Channel Support
        •   7.1 Channel Processing
        •   Dolby Atmos
        •   No Dolby Atmos Height Virtualization
        •   No DTS:X
        •   No IMAX Enhanced
        •   No Auro 3D with Auro-Matic Upmixer
        •   DSD via HDMI

        Video Features

        AVERAGE
        69
        •   No HDR10
        •   No HDR10+
        •   No Dolby Vision
        •   No 8K Passthrough
        GOOD
        83
        •   HDR10
        •   No HDR10+
        •   No Dolby Vision
        •   No 8K Passthrough
        •   Analog To HDMI Upconversion

        Connectivity

        GOOD
        80
        •   No eARC
        •   New HDCP Version
        •   Wi-Fi
        •   Bluetooth
        •   Works with Amazon Alexa
        •   6 HDMI Inputs
        •   1 HDMI Outputs
        •   0 8K Input
        •   USB Input
        •   RCA Line Inputs
        •   No Phono Input
        •   No RCA Pre-Outs
        •   Composite Video Inputs
        •   Component Video Inputs
        •   Ethernet
        •   Bluetooth 2․1 + EDR
        EXCELLENT
        87
        •   No eARC
        •   New HDCP Version
        •   Wi-Fi
        •   Bluetooth
        •   Works with Amazon Alexa
        •   8 HDMI Inputs
        •   2 HDMI Outputs
        •   0 8K Input
        •   USB Input
        •   RCA Line Inputs
        •   Phono Input
        •   RCA Pre-Outs
        •   Composite Video Inputs
        •   Component Video Inputs
        •   Ethernet
        •   Bluetooth 2․1 + EDR

        Zones

        AVERAGE
        55
        •   No Zones
        GOOD
        81
        •   2 Zones

        Radio

        GOOD
        79
        •   Analog Tuner
        •   No Pandora
        •   Spotify
        •   No Tidal
        GOOD
        84
        •   Analog Tuner
        •   No Pandora
        •   Spotify
        •   No Tidal

        11. Specifications

        GENERAL Yamaha RX-A550 Yamaha RX-A850
        BrandYamahaYamaha
        SeriesAventageAventage
        ModelRX-A550RX-A850
        TypeA/V ReceiverA/V Receiver
        CountryAustraliaAustralia
        Release Year20152015
        PredecessorYamaha RX-A840
        SuccessorYamaha RX-A660 Yamaha RX-A860
        AMPLIFIER Yamaha RX-A550 Yamaha RX-A850
        Channels5.17.2
        Power Output80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
        Front Wide Channel Support
        THX™ Certification
        Continuous 6 Ω Rated
        Certified 4 Ω Performance
        Bi-amp Capability
        AUDIO FEATURES Yamaha RX-A550 Yamaha RX-A850
        Surround:AI™
        DACBurr-BrownBurr-Brown
        DAC Specs192 kHz/24 Bit192 kHz/24 Bit
        Maximum Channel Processing5.17.1
        Air Studios Monitor Certification
        Dolby Atmos
        Dolby Atmos Height Virtualization
        Dolby Atmos Music
        Dolby TrueHD
        Dolby Digital Plus
        Dolby Surround Upmixer
        Dolby Pro Logic PLII PLIIx
        Dolby Digital EX
        Surround EX
        DTS:X
        DTS Neural:X
        DTS Virtual:X
        DTS Neo Neo:6 Neo:6
        DTS-HD Master Audio
        DTS-HD High Resolution Audio
        DTS 96/24
        DTS Express
        DTS-ES Discrete 6.1, Matrix 6.1 Discrete 6.1, Matrix 6.1
        IMAX Enhanced
        Auro 3D with Auro-Matic Upmixer
        PCM 2-ch/Multi-ch Input 2-ch/Multi-ch Input
        Network Audio FormatsMP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, AIFF, DSDMP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
        Music Playback via USBMP3, WMA, AAC, Apple Lossless, WAV, FLAC, AIFF, DSDMP3, WMA, AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
        High Resolution Music Playback via USB and/or Network up to 192 kHz up to 192 kHz
        High Resolution Audio Formats via USBApple Lossless, WAV, FLAC, AIFF, DSDApple Lossless, WAV, FLAC, AIFF, DSD
        Gapless Playback
        DSD via HDMI 2-ch/Multi-ch Input 2-ch/Multi-ch Input
        DSD via USB 2-ch Input 2-ch Input
        DSD to PCM Converter
        USB DAC
        DTS Dialogue Control
        Dialog Level Adjustment
        Dialog normalization
        Dialogue Lift no presence speakers required
        Compressed Music Enhancer including for Bluetooth® including for Bluetooth®
        High-resolution Music Enhancer
        Adaptive DRC (Dynamic Range Control)
        Initial Volume & Maximum Volume Setting
        Audyssey Dynamic EQ
        Audyssey Dynamic Volume
        Audyssey LFC
        Audyssey Sub EQ HT
        Audyssey DSX
        Direct Mode
        Straight Decoding Mode
        Pure Direct Mode with Video On mode
        CINEMA DSP 3D 3D
        DSP Programs1717
        SILENT CINEMA / Virtual CINEMA DSP Virtual CINEMA FRONT Virtual CINEMA FRONT
        Virtual Speakers including surround back
        CALIBRATION Yamaha RX-A550 Yamaha RX-A850
        Auto Speaker Calibration System with Mic. YPAO sound optimization YPAO sound optimization (R.S.C. with Multipoint measurement)
        YPAO Volume
        PEQ for SUBDown to 31 HzDown to 31 Hz
        VIDEO FEATURES Yamaha RX-A550 Yamaha RX-A850
        HDR10
        HDR10+
        Dynamic HDR
        BT.2020 color space
        Dolby Vision
        HLG (Hybrid Log Gamma)
        HDBaseT Compatible
        Enhanced Audio Return Channel (eARC)
        HDCP Version2.22.2
        QMS (Quick Media Switching)
        ALLM (Auto Low Latency Mode)
        VRR (Variable Refresh Rate)
        QFT (Quick Frame transport)
        3-D Ready
        Video Signal Passthroughup to 4K/60p 4:2:0up to 4K/60p 4:4:4
        Video Signal Upscaling up to 1080p up to 4K 60p 4:4:4
        Analog To HDMI Upconversion Component**, Composite
        Component Video Upscaling
        Analog to Analog Video conversion
        Component Video Maximum Resolution1080i1080i
        Video Parameter Adjustments
        isf Certified Calibration Control
        CONNECTIVITY Yamaha RX-A550 Yamaha RX-A850
        Wi-Fi with Wireless Direct with Wireless Direct
        Bluetooth
        Works with Amazon Alexa on MusicCast (Voice control using your Alexa device like Echo, Dot, Tap and Show) on MusicCast (Voice control using your Alexa device like Echo, Dot, Tap and Show)
        Chromecast Built-In
        Works with SonoS
        DTS Play-Fi
        MHL Input
        DLNA 1.5
        MusicCast
        AirPlay AirPlay AirPlay
        Apple Product Connection iPod, iPhone and iPad iPod, iPhone and iPad
        Remote App (iPhone® / iPad® / Android™ phone / tablet) (iPhone® / iPad® / Android™ phone / tablet)
        InstaPrevue Input Source Prevue
        TERMINALS Yamaha RX-A550 Yamaha RX-A850
        HDMI Inputs68 (1 front)
        HDMI Outputs12
        8K Inputs
        USB InputiPod® / iPhone®, USB memory, portable audio playeriPod® / iPhone®, USB memory, portable audio player
        USB DC Out Port
        Optical Inputs12
        Optical Outputs
        Coaxial Inputs22
        RCA Line Inputs4 (1 AUX Jack in the front)5 (1 front)
        RCA Line Outputs
        XLR Line Inputs
        Phono Input
        Multi-Channel Input
        RCA Pre-Outs0.17.2
        XLR Pre-outs
        Composite Video Inputs45 (1 front)
        Composite Video Outputs11
        S-Video Inputs
        S-Video Outputs
        Component Video Inputs22
        Component Video Outputs11
        Ethernet
        Ethernet Switch
        PC In
        Front A/V InputsUSB, mini-jackHDMI, USB, Analog Audio, Composite Video
        Speaker A/B
        Headphone Out6.3 mm (1/4")6.3 mm (1/4")
        Detachable Power Cord
        dockport
        ZONES Yamaha RX-A550 Yamaha RX-A850
        Number of Zones12
        Powered ZonesZone 2
        Zone 2 OutsLine output
        Zone B Video Output HDMI
        Zone GUI
        RS-232C Interface
        +12V Trigger Output1
        Remote (IR) Input/Output0 / 01 / 1
        Party Mode
        MISCELLANEOUS Yamaha RX-A550 Yamaha RX-A850
        On-Screen Display color OSDGraphical User Interface
        SCENESCENE (4 sets)SCENE (4 sets)
        Web Control
        PreAmp Mode
        RADIO Yamaha RX-A550 Yamaha RX-A850
        Analog Tuner FM/AM FM/AM
        Presets4040
        Digital Radio
        Internet Radio vTuner vTuner
        Pandora
        Spotify
        Tidal
        Deezer
        Napster
        SiriusXM
        CONSTRUCTION Yamaha RX-A550 Yamaha RX-A850
        A.R.T. Wedge
        Speaker Terminals59
        Large Speaker Terminals59
        Color-Coded Speaker Terminals
        Gold plated RCA terminals
        POWER Yamaha RX-A550 Yamaha RX-A850
        Power SupplyAC 240 V, 50 HzAC 240 V, 50 Hz
        Power Consumption260 W300 W
        Standby Power0.1 W0.1 W
        ECO Mode / Hybrid Standby Function
        Auto Power Standby
        PHYSICAL Yamaha RX-A550 Yamaha RX-A850
        Dimensions (W x H x D)435 mm x 161 mm x 327 mm (with antenna: 435 mm x 221 mm x 327 mm)
        17-1/8" x 6-3/8" x 12-7/8" (with antenna up: 17-1/8" x 8-3/4" x 12-7/8")
        435 mm x 171 mm x 380 mm (with antenna: 435 mm x 234 mm x 380 mm)
        17-1/8" x 6-3/4" x 15" (with antenna up: 17-1/8" x 9-1/4" x 15")
        Weight8.1 kg (17.9 lbs)10.6 kg (23.4 lbs)
        SPECIFICATIONS Yamaha RX-A550 Yamaha RX-A850
        Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)80 W (0.09% THD)100 W (0.06% THD)
        Power Output (8 Ω, 1 kHz, 2 channel Driven, FTC)95 W (0.9% THD)110 W (0.9% THD)
        Rated Power Output (8 Ω, 1 kHz, 1 channel Driven)130 W (0.9% THD)
        Maximum Effective Output Power (8 Ω, 1 kHz, 1 channel Driven, JEITA)160 W (10% THD)
        Power Output (6 Ω, 1 kHz, 1 channel driven, FTC)115 W (0.9% THD)
        Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA or IEC)135 W (10% THD)
        Rated Power Output (4 Ω, 1 kHz, 1 channel Driven)160 W (0.9% THD, Front)
        Dynamic Power per Channel (2 Ω, Front)160 W240 W
        Dynamic Power per Channel (4 Ω, Front)130 W195 W
        Dynamic Power per Channel (6 Ω, Front)110 W170 W
        Dynamic Power per Channel (8 Ω, Front)130 W
        THD0.06% (AV 5 etc. to Front, Pure Direct, 20 Hz - 20 kHz, 50 W, 8 Ω)
        THD (Phono)0.02% (Phono to SPEAKER OUT (Front), 20 Hz - 20 kHz, 1 V)
        Damping Factor100 (Front, 20 Hz - 20 kHz, 8 Ω)100 (Front, 20 Hz - 20 kHz, 8 Ω)
        Input Sensitivity and Impedance (Line)200 mV/47 kΩ (1 kHz, 100 W/6 Ω)200 mV/47 kΩ
        Input Sensitivity and Impedance (Phono MM)3.5 mV/47 kΩ
        Maximum Input Sensitivity (Line)2.3 V2.3 V
        Maximum Input Sensitivity (Phono)60 mV
        Rated Preout Level and Impedance1.0 V/1.2 kΩ
        Rated Headphone Jack Output Level and Impedance100 mV/560 Ω (AV 4 etc., 1 kHz, 50 mV, 8 Ω)
        S/N Ratio (Line, IHF-A)110 dB110 dB
        S/N Ratio (Phono MM, IHF-A)96 dB
        Frequency Response (Analog In)+0/-3 dB (10 Hz to 100 kHz)+0/-3 dB (10 Hz to 100 kHz)
        Residual noise (IHF-A Network)150 µV (Speaker Out)150 µV (Speaker Out)
        Channel Separation at 1 kHz/10 kHz (LINE)75 dB/50 dB75 dB/50 dB
        Channel Separation at 1 kHz/10 kHz (Phono)60 dB/55 dB
        DSD Sampling Rates via HDMI2.8 MHz2.8 MHz
        DSD Sampling Rates via USB5.6 MHz, 2.8 MHz5.6 MHz, 2.8 MHz
        Video Input Sensitivity/Output Level and Impedance 1 Vp-p/75 Ω (Component Y)
        0.7 Vp-p/75 Ω (Component PB/CB, PR/CR)
        1 Vp-p/75 Ω (Composite)
        1 Vp-p/75 Ω (Component Y)
        0.7 Vp-p/75 Ω (Component PB/CB, PR/CR)
        1 Vp-p/75 Ω (Composite)
        Video Maximum Input1.5 Vp-p1.5 Vp-p
        Video Frequency Response5 Hz to 60 MHz, -3 dB (Component)5 Hz to 60 MHz, -3 dB (Component)
        Video S/N Ratio50 dB50 dB
        Ethernet Standard10BASE-T/100BASE-TX10BASE-T/100BASE-TX
        Wi-Fi StandardIEEE 802.11 b/g/nIEEE 802.11 b/g/n
        Wi-Fi Terminal Frequency2.4 GHz2.4 GHz
        Bluetooth Version2․1 + EDR2․1 + EDR
        USB TerminalUSB2.0 5 V, 1 AUSB2.0 5 V, 1 A
        FM Frequency87.50 MHz - 108.00 MHz87.50 MHz - 108.00 MHz
        FM 50 dB Quiet Sensitivity (IHF, 1 kHz, 100% MOD.)Mono: 3 µV (20.8 dBf)Mono: 3 µV (20.8 dBf)
        FM S/N RatioMono/Stereo: 65 dB/64 dBMono/Stereo: 65 dB/64 dB
        FM Harmonic Distortion (IHF, 1 kHz)Mono/Stereo: 0.5%/0.6%Mono/Stereo: 0.5%/0.6%
        AM Frequency531 MHz - 1611 MHz531 MHz - 1611 MHz
        Warranty3 Years3 Years

        * - 480i/576i and 480p/576p only
        ** - 480i/576i only
        *** - no 1080p/24 upconversion
        **** - 1080p signal is not converted

        Discussion

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