Arcam AVR31 vs Yamaha RX-A850

      Arcam AVR31

      Yamaha RX-A850
      93
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      85
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      All
      USA and Canada General
      China
      Korea Australia UK and Europe Asia
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      Highlights

      • 7.2 Channels
      • 15.2 Channel Processing
      • 120 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      • HDMI 2.1
      • Dolby Atmos, DTS:X, Auro 3D
      • HDR10, HDR10+, Dolby Vision
      • 8K 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.

      Table of Contents
      1. Overview
      2. Pros and Cons
      3. Advantage of Arcam AVR31
      4. Advantage of Yamaha RX-A850
      5. Common Strengths and Weaknesses
      6. Amplifier
      7. Speaker Configurations
      8. Immersive Audio Formats
      9. HDMI
      10. Inputs and Outputs
      11. Evaluations
      12. Specifications

      1. Overview

      Here we are comparing Arcam AVR31 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. Both receivers have 7 channel amplifiers with Arcam AVR31's being more powerful.


      Arcam AVR31 Yamaha RX-A850

      Arcam AVR31 was introduced in 2022 and represents a current flagship model of a manufacturer. It is equipped with 7 channel amplifier with 120 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) power per channel and is capable of 15.2 maximum channel processing. It supports Dolby Atmos, DTS:X and Auro-3D, passes 8K/60Hz and 4K/120Hz 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 Arcam AVR31 and Yamaha RX-A850 and gave them scores of 93 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.

      Arcam AVR31

      Yamaha RX-A850

      Amplifier
      92
      Amplifier
      89
      Audio Features
      94
      Audio Features
      81
      Video Features
      99
      Video Features
      83
      Connectivity
      90
      Connectivity
      87
      Zones
      85
      Zones
      81
      Radio
      86
      Radio
      84
      OVERALL
      93
      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 Arcam AVR31 and Yamaha RX-A850.

      PROS

      Arcam AVR31

      Yamaha RX-A850

      •   High Power Output - 120 W
      •   Front Wide Channel Support
      •   15.2 Channel Processing
      •   Dolby Atmos
      •   Dolby Atmos Height Virtualization
      •   DTS:X
      •   IMAX Enhanced
      •   Auro 3D with Auro-Matic Upmixer
      •   MQA Decoding
      •   DSD via HDMI
      •   Auto Speaker Calibration System with Mic.
      •   HDR10
      •   HDR10+
      •   Dolby Vision
      •   HDMI 2.1
      •   eARC
      •   New HDCP Version
      •   Auto Low Latency Mode Pass-through
      •   VRR
      •   8K Passthrough
      •   Wi-Fi
      •   Bluetooth
      •   Google Assistant
      •   Chromecast Built-In
      •   7 HDMI Inputs
      •   4 HDMI Outputs
      •   7 8K Inputs
      •   USB Input
      •   Many RCA Line Inputs
      •   RCA Pre-Outs
      •   Ethernet
      •   Analog Tuner
      •   Digital Radio
      •   Pandora
      •   Spotify
      •   Tidal
      •   Toroidal Transformer
      •   Bluetooth 5․0
      •   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

      Arcam AVR31

      Yamaha RX-A850

      •   Does not Work with Amazon Alexa
      •   No Phono Input
      •   No Composite Video Inputs
      •   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

      Arcam AVR31

      Yamaha RX-A850

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

      3. Advantage of Arcam AVR31

      This section shows those features and specifications which are the reason to choose Arcam AVR31 over Yamaha RX-A850.

      Check the Price

      Arcam AVR31
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      Arcam AVR31 vs Yamaha RX-A850
      Higher Power Output 120 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) vs 100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      Front Wide Channel Support vs
      More Channel Processing 15.2 vs 7.1
      Dolby Atmos Height Virtualization vs
      DTS:X Pro up to 9.1.6 with external amp vs
      DTS Neural:X vs
      DTS Virtual:X vs
      IMAX Enhanced vs
      Auro 3D with Auro-Matic Upmixer 13.1-ch (Built-In) vs
      Network Audio Formats MP3, WMA, AAC, WAV, FLAC, AIFF, ALAC, DSD, MQA vs MP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
      DTS Dialog Control vs
      HDR10+ vs
      BT.2020 color space vs
      Dolby Vision vs
      HLG vs
      Enhanced Audio Return Channel (eARC) vs
      Newer HDCP Version 2.3 vs 2.2
      Auto Low Latency Mode Pass-through vs
      VRR vs
      Video Signal Passthrough up to 8K 50/60Hz and 4K 100/120Hz 4:4:4 vs up to 4K/60p 4:4:4
      Chromecast Built-In vs
      AirPlay AirPlay 2 vs AirPlay
      More HDMI Outputs 3 (2 x 8K for MAIN, 1 x 4K for ZONE2) vs 2
      More 8K Inputs 7 vs
      More Optical Outputs 1 vs
      More Coaxial Inputs/Outputs 4 vs 2
      More RCA Line Inputs 7 (1 front) vs 5 (1 front)
      More RCA Line Outputs 1 vs
      More RCA Pre-Outs 15.2 vs 7.2
      Zone 2 Outs HDMI, Pre Out vs Line output
      +12V Trigger Output 2 vs 1
      PreAmp Mode vs
      More Presets 50 vs 40
      Digital Radio DAB/DAB+ vs
      Pandora vs
      Tidal vs
      Universal Power Supply AC 110-120 V or 220-240 V, 50/60 Hz via switch vs AC 220 V, 50 Hz
      Bigger Power Supply 1500 W vs 270 W
      Higher Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC) 120 W (0.02% THD) vs 100 W (0.06% THD)
      Higher Power Output (8 Ω, 1 kHz, 2 channel Driven, FTC) 140 W (0.2% THD) vs 110 W (0.9% THD)
      Wi-Fi Standard IEEE 802.11 ac vs IEEE 802.11 b/g/n
      Wi-Fi Terminal Frequency 5 GHz, 2.4 GHz vs 2.4 GHz
      Newer Bluetooth Version 5․0 vs 2․1 + EDR
      Longer Warranty 5 Years vs 3 Years
      Check out other receivers which are frequently compared to Arcam AVR31.
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      11.4 channel

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      Yamaha RX-A8A
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      11.2 channel

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      Arcam AVR21
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      7.2 channel

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      Anthem MRX 1140 8K
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      Yamaha RX-A6A
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      9.2 channel

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      7.2 channel

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      Yamaha RX-A4A
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      7.2 channel

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      Integra DRX-8.4
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      11.4 channel

      150 W

      Denon AVR-A1H
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      15.4 channel

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      Yamaha RX-A2A
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      7.2 channel

      100 W

      Onkyo TX-RZ70
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      11.2 channel

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      Yamaha RX-V4A
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      5.2 channel

      80 W

      4. Advantage of Yamaha RX-A850

      This section shows those features and specifications which are the reason to choose Yamaha RX-A850 over Arcam AVR31.

      Check the Price

      Yamaha RX-A850
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      Arcam AVR31 vs Yamaha RX-A850
      Dolby Pro Logic vs PLIIx
      Dolby Digital EX vs
      DTS Neo vs Neo:6
      Music Playback via USB vs MP3, WMA, AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
      DSD via USB vs 2-ch Input
      Dialogue Lift vs no presence speakers required
      Works with Amazon Alexa vs on MusicCast (Voice control using your Alexa device like Echo, Dot, Tap and Show)
      More HDMI Inputs 7 vs 8 (1 front)
      Phono Input vs
      More Composite Video Inputs vs 5 (1 front)
      More Composite Video Outputs vs 1
      More Component Video Inputs vs 2
      More Component Video Outputs vs 1
      Front A/V Inputs AUX (3.5 mm Audio) vs HDMI, USB, Analog Audio, Composite Video
      Analog Tuner FM with RDS vs FM/AM
      SiriusXM vs
      More Speaker Terminals 7 vs 9
      More Large Speaker Terminals 7 vs 9

      5. 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 Arcam AVR31 Yamaha RX-A850
        Dolby Atmos up to 9.1.6 with external amp
        DSD via HDMI 2-ch/Multi-ch Input 2-ch/Multi-ch Input
        Auto Speaker Calibration System with Mic. Dirac Live™ YPAO sound optimization (R.S.C. with Multipoint measurement)
        HDR10
        New HDCP Version2.32.2
        Wi-Fi with Wireless Direct
        Bluetooth aptX HD
        Many HDMI Inputs78 (1 front)
        USB Input for factory serviceiPod® / iPhone®, USB memory, portable audio player
        RCA Pre-Outs15.27.2
        Ethernet
        Analog Tuner FM with RDS FM/AM
        Spotify

      6. Amplifier

      Arcam AVR31 Yamaha RX-A850

      7 channel Class G Amplifier: Arcam AVR31 features 7 channel power amplifier with Class G design. It is rated at 120 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) and is able to drive 4 ohm speakers.

      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.
      • Toroidal Transformer: Arcam AVR31 has a toroidal transformer which in general costs several times more than a regular C-core transformer and radiates less electromagnetic noise outside its donut shaped core.


      AMPLIFIER Arcam AVR31 Yamaha RX-A850
      Channels7.27.2
      Power Output120 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

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      Arcam AVR31
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      7. Speaker Configurations

      Arcam AVR31'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:
      • Arcam AVR31: 5.2.2 with internal amplifier and 5.2.4, 7.2.2 with addition of external 2 channel amplifier and 5.2.6, 7.2.4, 9.2.2 with addition of external 4 channel amplifier and 7.2.6, 9.2.4 with addition of external 6 channel amplifier and 9.2.6 with addition of external 8 channel amplifier.
      • Yamaha RX-A850: 5.2.2 with internal amplifier.
      • DTS:X Configurations: The following speaker configurations are supported for DTS:X:
      • Arcam AVR31: This model supports DTS:X but not DTS:X Pro. Since DTS:X is limited with 11 channel processing some of the speaker configurations for Dolby Atmos are not supported here. The supported configurations are 5.2.2 with internal amplifier and 5.2.4, 7.2.2 with addition of external 2 channel amplifier and 5.2.6, 7.2.4, 9.2.2 with addition of external 4 channel amplifier.
      • Yamaha RX-A850: Not supported.
      • Configurations without height channels: There are also other speaker configurations available which do not include height channels:
      • Arcam AVR31: 5.2, 7.2 with internal amplifier and 9.2 with addition of external 2 channel amplifier.
      • Yamaha RX-A850: 5.2, 7.2 with internal amplifier.
      • Front Wide Channel support: With the presence of two front wide speakers you can enhance the front surround stage. The following speaker configurations are available for front wide channels:
      • Arcam AVR31: 9.2, 9.2.2, 9.2.4, 9.2.6.
      • Yamaha RX-A850: Does not support.
      • 2-ch Bi-Amp: Both models are 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.

      8. Immersive Audio Formats

      Dolby Atmos

      Arcam AVR31 and Yamaha RX-A850 support Dolby Atmos.

      • Dolby Surround Upmixer: Both models support 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.
      • Dolby Atmos Height Virtualization: Arcam AVR31 supports Dolby Atmos Height Virtualization which is a digital signal processing solution that leverages Dolby's deep understanding of human audio perception to create the sensation of overhead sound from the listener-level speakers.

      DTS:X

      Arcam AVR31 supports DTS:X.

      • DTS Neural:X: Arcam AVR31 supports DTS Neural:X which is an advanced upmixer that can take non DTS:X content and upmix it to the DTS:X speaker layout. It has replaced the DTS Neo family with improved flexibility.
      • DTS Virtual:X: Arcam AVR31 supports DTS Virtual:X which bridges the gap between DTS:X codec and the reality of so many consumers' homes, allowing you to enjoy multi-dimensional sound regardless of room size, layout, or speaker configuration. If you have a limited speaker setup you will miss a full immersive potential of your entertainment system. DTS Virtual:X adds height and surround audio effect to your system without adding height speakers. It works with multiple configurations and delivers immersive sound experience out of 5.1 or even 2.1 speaker layouts.
      • DTS Dialog Control: Arcam AVR31 supports DTS Dialog Control. This function adjusts the dialog levels during playback of the DTS:X stream. It allows you to separately increase the dialog levels in contrast with the background sound and hear dialog easily even under noisy circumstances.

      Auro-3D

      Arcam AVR31 supports Auro-3D.

      • Auro-Matic upmixer: Auro-Matic upmixer takes non Auro-3D sound and upmixes to the current speaker configuration.

      IMAX Enhanced

      Arcam AVR31 is IMAX Enhanced certified. To qualify for IMAX Enhanced certification, 4K HDR televisions, projectors, sound bars, a/v receivers, loudspeakers, powered subwoofers and other premium home entertainment devices must meet carefully prescribed performance requirements established by IMAX, DTS and Hollywood's leading experts.

      • What makes an IMAX Enhanced A/V receiver different from an A/V receiver with DTS:X technology? DTS:X technology is commonly found in most multi-channel A/V receivers on the market today. All IMAX Enhanced A/V receivers include DTS:X technology and deliver additional features, such as auto-sensing of IMAX Enhanced content, via IMAX Mode. IMAX Mode indicates that your A/V receiver supports fully immersive IMAX signature sound.
      AUDIO DECODING Arcam AVR31 Yamaha RX-A850
      Dolby Atmos up to 9.1.6 with external amp
      Dolby Atmos Height Virtualization
      Dolby Atmos Music
      Dolby TrueHD
      Dolby Digital Plus
      Dolby Surround Upmixer
      Dolby Pro Logic PLIIx
      Dolby Digital EX
      DTS:X Pro up to 9.1.6 with external amp
      DTS Neural:X
      DTS Virtual:X
      DTS Neo Neo:6
      DTS-HD Master Audio
      DTS-HD High Resolution Audio
      DTS 96/24
      DTS-ES Discrete 6.1, Matrix 6.1 Discrete 6.1, Matrix 6.1
      IMAX Enhanced
      Auro 3D with Auro-Matic Upmixer 13.1-ch (Built-In)

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      Yamaha RX-A850
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      9. HDMI

      Arcam AVR31 comes with 7 HDMI 2.1 inputs with 8K support. It has 3 outputs - 2 x 8K for MAIN and 1 x 4K for ZONE2.

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

      • 8K/60Hz and 4K/120Hz Passthrough on Arcam AVR31: All inputs pass up to 8K 50/60Hz and 4K 100/120Hz 4:4:4 video signal.
        4K/60Hz Passthrough on Yamaha RX-A850: All inputs pass up to 4K/60p 4:4:4 video signal.
      • 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.
      • BT.2020 Color Space: BT.2020 or Rec. 2020 is a color standard which delivers a wider color gamut compared to Rec. 709. It covers approximately 75% of the total visual spectrum while the Rec. 709 covers only 35% (available on Arcam AVR31 only).
      • HDCP Copy Protection: Arcam AVR31 is HDCP 2.3 and Yamaha RX-A850 is 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)

      Arcam AVR31 supports HDR10, HDR10+, Dolby Vision and Hybrid Log-Gamma.

      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.


      Enhanced Audio Return Channel (eARC)

      Arcam AVR31 supports Audio Return Channel (ARC) which allows the compatible TV to send audio signal to the a/v receiver through the same HDMI cable which is used to send audio and video signals to the TV. So one HDMI cable is used to transfer audio signal in both directions. New Enhanced ARC will support uncompressed audio formats such as Dolby Atmos, DTS:X, Dolby TrueHD and DTS HD Master Audio whereas the previous ARC could support only Dolby Digital, Dolby Digital Plus, DTS, DTS HD, and PCM.


      Gaming Features

      Arcam AVR31 supports Auto Low Latency Mode (ALLM) and Variable Refresh Rate (VRR) for lag-free and smooth gaming.



      VIDEO FEATURES Arcam AVR31 Yamaha RX-A850
      HDR10
      HDR10+
      Dynamic HDR
      BT.2020 color space
      Dolby Vision
      HLG (Hybrid Log Gamma)
      Enhanced Audio Return Channel (eARC)
      HDCP Version2.32.2
      QMS (Quick Media Switching)
      ALLM (Auto Low Latency Mode)
      VRR (Variable Refresh Rate)
      QFT (Quick Frame transport)
      3-D Ready
      Video Signal Passthroughup to 8K 50/60Hz and 4K 100/120Hz 4:4:4up to 4K/60p 4:4:4

      Check the Price

      Arcam AVR31
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      10. 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: Arcam AVR31 has 15.2 and Yamaha RX-A850 has 7.2 preamplifier outputs which allow you to connect the receivers to the external power amplifiers. 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. Also, Arcam AVR31 has 15 channel processing but has only 7 channel amplifier, so it needs external amplifier connected to the analog pre-outs in order to reach its maximum speaker configuration.
      • Analog Line Inputs and Outputs: There are 7 pair of line inputs on Arcam AVR31 and 5 pair of line inputs on Yamaha RX-A850 for connecting sources with analog outputs. There is also 1 pair of line outputs on Arcam AVR31.
      • Digital Inputs and Outputs: 2 optical inputs, 1 optical output and 4 coaxial inputs are available on Arcam AVR31 and 2 optical inputs and 2 coaxial inputs are available on Yamaha RX-A850 for digital audio connections.
      • Headphone Output: There is a 3.5 mm (1/8") headphone output jack on the front panel of each receiver.

      Video

      • HDMI:
      • Arcam AVR31
        Inputs:         7   Outputs: 3 (2 x 8K for MAIN, 1 x 4K for ZONE2)
        8K Inputs: 7.
      • 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.
      • Arcam AVR31
        Inputs:         0   Outputs: 0.
      • 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. resolution on Component video connectors.
      • Yamaha RX-A850 supports up to 1080i resolution on Component video connectors.
      • Arcam AVR31
        Inputs:         0   Outputs: 0.
      • Yamaha RX-A850
        Inputs:         2   Outputs: 1.

      Front A/V Inputs

      • Arcam AVR31: AUX (3.5 mm Audio)
      • Yamaha RX-A850: HDMI, USB, Analog Audio, Composite Video

      Arcam AVR31

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      Yamaha RX-A850

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      TERMINALS Arcam AVR31 Yamaha RX-A850
      HDMI Inputs78 (1 front)
      HDMI Outputs3 (2 x 8K for MAIN, 1 x 4K for ZONE2)2
      8K Inputs7
      USB Input for factory serviceiPod® / iPhone®, USB memory, portable audio player
      USB DC Out Port
      Optical Inputs22
      Optical Outputs1
      Coaxial Inputs42
      RCA Line Inputs7 (1 front)5 (1 front)
      RCA Line Outputs1
      XLR Line Inputs
      Phono Input
      Multi-Channel Input
      RCA Pre-Outs15.27.2
      XLR Pre-outs
      Composite Video Inputs5 (1 front)
      Composite Video Outputs1
      S-Video Inputs
      S-Video Outputs
      Component Video Inputs2
      Component Video Outputs1

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      Yamaha RX-A850
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      11. Evaluations

      We evaluated Arcam AVR31 and Yamaha RX-A850 and gave them scores of 93 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.


      Arcam AVR31

      Yamaha RX-A850

      OVERALL
      93
      OVERALL
      85

      Amplifier

      EXCELLENT
      92
      •   7.2 Channels
      •   High Power Output - 120 W
      •   Toroidal Transformer
      EXCELLENT
      89
      •   7.2 Channels
      •   Power Output - 100 W

      Audio Features

      EXCELLENT
      94
      •   7.2 Channels
      •   Front Wide Channel Support
      •   15.2 Channel Processing
      •   Dolby Atmos
      •   Dolby Atmos Height Virtualization
      •   DTS:X
      •   IMAX Enhanced
      •   Auro 3D with Auro-Matic Upmixer
      •   MQA Decoding
      •   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

      EXCELLENT
      99
      •   HDR10
      •   HDR10+
      •   Dolby Vision
      •   HDMI 2.1
      •   Auto Low Latency Mode Pass-through
      •   VRR
      •   8K Passthrough
      GOOD
      83
      •   HDR10
      •   No HDR10+
      •   No Dolby Vision
      •   No 8K Passthrough
      •   Analog To HDMI Upconversion

      Connectivity

      EXCELLENT
      90
      •   eARC
      •   New HDCP Version
      •   Wi-Fi
      •   Bluetooth
      •   Does not Work with Amazon Alexa
      •   Google Assistant
      •   Chromecast Built-In
      •   7 HDMI Inputs
      •   4 HDMI Outputs
      •   7 8K Inputs
      •   USB Input
      •   Many RCA Line Inputs
      •   No Phono Input
      •   RCA Pre-Outs
      •   No Composite Video Inputs
      •   Ethernet
      •   Bluetooth 5․0
      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

      EXCELLENT
      85
      •   2 Zones
      GOOD
      81
      •   2 Zones

      Radio

      EXCELLENT
      86
      •   Analog Tuner
      •   Pandora
      •   Spotify
      •   Tidal
      GOOD
      84
      •   Analog Tuner
      •   No Pandora
      •   Spotify
      •   No Tidal

      12. Specifications

      GENERAL Arcam AVR31 Yamaha RX-A850
      BrandArcamYamaha
      SeriesHDAAventage
      ModelAVR31RX-A850
      TypeA/V ReceiverA/V Receiver
      CountryAllChina
      Release Year20222015
      PredecessorArcam AVR30 Yamaha RX-A840
      SuccessorYamaha RX-A860
      AMPLIFIER Arcam AVR31 Yamaha RX-A850
      Channels7.27.2
      Power Output120 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
      Amplifier DesignClass G
      THX™ Certification
      Continuous 6 Ω Rated
      Certified 4 Ω Performance
      Bi-amp Capability
      AUDIO FEATURES Arcam AVR31 Yamaha RX-A850
      Surround:AI™
      DACDual ESS 9026PROBurr-Brown
      DAC Specs192 kHz/24 Bit192 kHz/24 Bit
      Maximum Channel Processing15.27.1
      Air Studios Monitor Certification
      Dolby Atmos up to 9.1.6 with external amp
      Dolby Atmos Height Virtualization
      Dolby Atmos Music
      Dolby TrueHD
      Dolby Digital Plus
      Dolby Surround Upmixer
      Dolby Pro Logic PLIIx
      Dolby Digital EX
      DTS:X Pro up to 9.1.6 with external amp
      DTS Neural:X
      DTS Virtual:X
      DTS Neo 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 13.1-ch (Built-In)
      MQA Decoding
      PCM 2-ch/Multi-ch Input 2-ch/Multi-ch Input
      Network Audio FormatsMP3, WMA, AAC, WAV, FLAC, AIFF, ALAC, DSD, MQAMP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
      Music Playback via USBMP3, 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, DSD
      Gapless Playback
      DSD via HDMI 2-ch/Multi-ch Input 2-ch/Multi-ch Input
      DSD via USB 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®
      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 Stereo Direct, CD Direct
      Straight Decoding Mode
      Pure Direct Mode with Video On mode
      CINEMA DSP 3D
      DSP Programs17
      SILENT CINEMA / Virtual CINEMA DSP Virtual CINEMA FRONT
      Virtual Speakers including surround back
      Independent Subwoofer Outputs
      CALIBRATION Arcam AVR31 Yamaha RX-A850
      Auto Speaker Calibration System with Mic. Dirac Live™ YPAO sound optimization (R.S.C. with Multipoint measurement)
      YPAO Volume
      PEQ for SUBDown to 31 Hz
      VIDEO FEATURES Arcam AVR31 Yamaha RX-A850
      HDR10
      HDR10+
      Dynamic HDR
      BT.2020 color space
      Dolby Vision
      HLG (Hybrid Log Gamma)
      HDMI Version2.1
      HDBaseT Compatible
      Enhanced Audio Return Channel (eARC)
      HDCP Version2.32.2
      QMS (Quick Media Switching)
      ALLM (Auto Low Latency Mode)
      VRR (Variable Refresh Rate)
      QFT (Quick Frame transport)
      DSC (Display Stream Compression)
      3-D Ready
      Video Signal Passthroughup to 8K 50/60Hz and 4K 100/120Hz 4:4:4up to 4K/60p 4:4:4
      Video Signal Upscaling up to 4K 60p 4:4:4
      Analog To HDMI Upconversion Component**, Composite
      Component Video Upscaling
      Analog to Analog Video conversion
      Component Video Maximum Resolution1080i
      Video Parameter Adjustments
      isf Certified Calibration Control
      CONNECTIVITY Arcam AVR31 Yamaha RX-A850
      Wi-Fi with Wireless Direct
      Bluetooth aptX HD
      Works with Amazon Alexa on MusicCast (Voice control using your Alexa device like Echo, Dot, Tap and Show)
      Google Assistant
      Chromecast Built-In
      Apple Siri
      Works with SonoS
      DTS Play-Fi
      MHL Input
      DLNA 1.5
      MusicCast
      AirPlay AirPlay 2 AirPlay
      Apple Product Connection iPod, iPhone and iPad iPod, iPhone and iPad
      Remote App Arcam control app (iPhone® / iPad® / Android™ phone / tablet)
      InstaPrevue Input Source Prevue
      TERMINALS Arcam AVR31 Yamaha RX-A850
      HDMI Inputs78 (1 front)
      HDMI Outputs3 (2 x 8K for MAIN, 1 x 4K for ZONE2)2
      8K Inputs7
      USB Input for factory serviceiPod® / iPhone®, USB memory, portable audio player
      USB DC Out Port
      Optical Inputs22
      Optical Outputs1
      Coaxial Inputs42
      RCA Line Inputs7 (1 front)5 (1 front)
      RCA Line Outputs1
      XLR Line Inputs
      Phono Input
      Multi-Channel Input
      RCA Pre-Outs15.27.2
      XLR Pre-outs
      Composite Video Inputs5 (1 front)
      Composite Video Outputs1
      S-Video Inputs
      S-Video Outputs
      Component Video Inputs2
      Component Video Outputs1
      Ethernet
      Ethernet Switch
      PC In
      Front A/V InputsAUX (3.5 mm Audio)HDMI, USB, Analog Audio, Composite Video
      Speaker A/B
      Headphone Out3.5 mm (1/8")6.3 mm (1/4")
      Detachable Power Cord
      dockport
      ZONES Arcam AVR31 Yamaha RX-A850
      Number of Zones22
      Powered Zones 2Zone 2
      Zone 2 OutsHDMI, Pre OutLine output
      Zone B Video Output HDMI
      Zone GUI
      RS-232C Interface
      +12V Trigger Output21
      Remote (IR) Input/Output2 / 01 / 1
      Party Mode
      MISCELLANEOUS Arcam AVR31 Yamaha RX-A850
      On-Screen DisplayGraphical User Interface
      SCENESCENE (4 sets)
      Web Control
      IP Control
      PreAmp Mode
      DisplayLarge front-panel LCD display
      RADIO Arcam AVR31 Yamaha RX-A850
      Analog Tuner FM with RDS FM/AM
      Presets5040
      Digital Radio DAB/DAB+
      Internet Radio TuneIn vTuner
      Pandora
      Spotify
      Tidal
      Deezer
      Napster
      SiriusXM
      CONSTRUCTION Arcam AVR31 Yamaha RX-A850
      A.R.T. Wedge
      Speaker Terminals79
      Large Speaker Terminals79
      Color-Coded Speaker Terminals
      Gold plated RCA terminals
      POWER Arcam AVR31 Yamaha RX-A850
      Power SupplyAC 110-120 V or 220-240 V, 50/60 Hz via switchAC 220 V, 50 Hz
      Toroidal Transformer
      Power Consumption1500 W270 W
      Standby Power0.5 W0.1 W
      ECO Mode / Hybrid Standby Function
      Auto Power Standby
      PHYSICAL Arcam AVR31 Yamaha RX-A850
      Dimensions (W x H x D)433 mm x 171 mm x 425 mm
      17.06" x 6.69" x 18.56"      		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")
      Weight18.1 kg (39.9 lbs)10.6 kg (23.4 lbs)
      Weight of Package21.4 kg
      SPECIFICATIONS Arcam AVR31 Yamaha RX-A850
      Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)120 W (0.02% THD)100 W (0.06% THD)
      Power Output (8 Ω, 1 kHz, 2 channel Driven, FTC)140 W (0.2% 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 (4 Ω, 20 Hz - 20 kHz, 2 channel Driven)200 W (0.2% THD)
      Power Output (4 Ω, 1 kHz, 2 channel Driven)220 W (0.2% THD)
      Rated Power Output (4 Ω, 1 kHz, 1 channel Driven)160 W (0.9% THD, Front)
      Multi Channel Simultaneous Drive100 W (7 channels driven, 1kHz, 8 Ω, 0.2% THD)
      180 W (7 channels driven, 1kHz, 4 Ω, 0.2% THD)
      Dynamic Power per Channel (2 Ω, Front)240 W
      Dynamic Power per Channel (4 Ω, Front)195 W
      Dynamic Power per Channel (6 Ω, Front)170 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)
      Input Sensitivity and Impedance (Line)1V, 2V, 4V (user adjustable)/47 kΩ200 mV/47 kΩ
      Input Sensitivity and Impedance (Phono MM)3.5 mV/47 kΩ
      Maximum Input Sensitivity (Line)4.5 Vrms2.3 V
      Maximum Input Sensitivity (Phono)60 mV
      Rated Preout Level and Impedance1 Vrms/560 Ω1.0 V/1.2 kΩ
      Maximum Preout Level and Impedance5 Vrms/560 Ω
      Rated Headphone Jack Output Level and Impedance5 Vrms/100 Ω
      S/N Ratio (Line, IHF-A)93 dB (normal)
      110 dB (stereo direct)      		110 dB
      S/N Ratio (Phono MM, IHF-A)96 dB
      Frequency Response (Analog In)±0.1 dB (20 Hz to 20 kHz)+0/-3 dB (10 Hz to 100 kHz)
      Residual noise (IHF-A Network)0.15 mV150 µV (Speaker Out)
      Channel Separation at 1 kHz/10 kHz (LINE)75 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 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)
      Video Maximum Input1.5 Vp-p
      Video Frequency Response5 Hz to 60 MHz, -3 dB (Component)
      Video S/N Ratio50 dB
      Ethernet Standard10BASE-T/100BASE-TX
      Wi-Fi StandardIEEE 802.11 acIEEE 802.11 b/g/n
      Wi-Fi Terminal Frequency5 GHz, 2.4 GHz2.4 GHz
      Bluetooth Version5․02․1 + EDR
      USB TerminalUSB2.0 5 V, 1 A
      FM Frequency87.50 MHz - 108.00 MHz
      FM 50 dB Quiet Sensitivity (IHF, 1 kHz, 100% MOD.)Mono: 3 µV (20.8 dBf)
      FM S/N RatioMono/Stereo: 65 dB/64 dB
      FM Harmonic Distortion (IHF, 1 kHz)Mono/Stereo: 0.5%/0.6%
      AM Frequency531 MHz - 1611 MHz
      Warranty5 Years3 Years

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

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