Yamaha RX-A2A vs Yamaha RX-A870

      Yamaha RX-A2A

      Yamaha RX-A870
      89
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      89
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      USA
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      USA and Canada
      UK and Europe Australia China Korea Asia General
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      Highlights

      • 7.2 Channels
      • 7.1 Channel Processing
      • 100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      • HDMI 2.1
      • Dolby Atmos, DTS:X
      • HDR10, HDR10+, Dolby Vision
      • 8K Passthrough, 4K/60Hz Upscaling
      • Wi-Fi, Bluetooth, Ethernet
      • Phono Input

      Highlights

      • 7.2 Channels
      • 7.1 Channel Processing
      • 100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      • Dolby Atmos, DTS:X
      • HDR10, Dolby Vision
      • 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 Yamaha RX-A2A
      4. Advantage of Yamaha RX-A870
      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 Yamaha RX-A2A to Yamaha RX-A870 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 and equally powerful amplifiers.


      Yamaha RX-A2A Yamaha RX-A870

      Yamaha RX-A2A was introduced in 2020. It is equipped with 7 channel amplifier with 100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) power per channel and is capable of 7.1 maximum channel processing. It supports Dolby Atmos and DTS:X, passes 8K/60Hz and 4K/120Hz and upscales up to 4K 60p 4:4:4 video signal.

      Yamaha RX-A870 was introduced in 2017. It is equipped with 7 channel amplifier with 100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) power per channel and is capable of 7.1 maximum channel processing. It supports Dolby Atmos and DTS:X, passes 4K/60Hz and upscales up to 4K 60p 4:4:4 video signal.

      We evaluated Yamaha RX-A2A and Yamaha RX-A870 and gave both of them the score of 89 out of 100. Our ranking system is based on the amplifier specifications, audio and video features, connectivity, multizone capabilities, radio and many other details.

      Yamaha RX-A2A

      Yamaha RX-A870

      Amplifier
      88
      Amplifier
      89
      Audio Features
      86
      Audio Features
      84
      Video Features
      99
      Video Features
      95
      Connectivity
      86
      Connectivity
      87
      Zones
      79
      Zones
      82
      Radio
      97
      Radio
      97
      OVERALL
      89
      OVERALL
      89

      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-A2A and Yamaha RX-A870.

      PROS

      Yamaha RX-A2A

      Yamaha RX-A870

      •   Dolby Atmos
      •   Dolby Atmos Height Virtualization
      •   DTS:X
      •   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
      •   QFT
      •   8K Passthrough
      •   Wi-Fi
      •   Bluetooth
      •   Works with Amazon Alexa
      •   Google Assistant
      •   7 HDMI Inputs
      •   7 8K Inputs
      •   USB Input
      •   Phono Input
      •   RCA Pre-Outs
      •   Ethernet
      •   Analog Tuner
      •   Pandora
      •   Spotify
      •   Tidal
      •   Dolby Atmos
      •   DTS:X
      •   DSD via HDMI
      •   Auto Speaker Calibration System with Mic.
      •   HDR10
      •   Dolby Vision
      •   eARC
      •   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
      •   Pandora
      •   Spotify
      •   Tidal

      CONS

      Yamaha RX-A2A

      Yamaha RX-A870

      •   No Front Wide Channel Support
      •   No IMAX Enhanced
      •   No Auro 3D with Auro-Matic Upmixer
      •   1 HDMI Outputs
      •   Few RCA Line Inputs
      •   No Composite Video Inputs
      •   No Digital Radio
      •   No Front Wide Channel Support
      •   No Dolby Atmos Height Virtualization
      •   No IMAX Enhanced
      •   No Auro 3D with Auro-Matic Upmixer
      •   No HDR10+
      •   No 8K Passthrough
      •   0 8K Input
      •   No Digital Radio
      •   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-A2A

      Yamaha RX-A870

      •   7.2 Channels
      •   Power Output - 100 W
      •   7.1 Channel Processing
      •   2 Zones
      •   Bluetooth 4․2
      •   7.2 Channels
      •   Power Output - 100 W
      •   7.1 Channel Processing
      •   2 HDMI Outputs
      •   RCA Line Inputs
      •   2 Zones

      3. Advantage of Yamaha RX-A2A

      This section shows those features and specifications which are the reason to choose Yamaha RX-A2A over Yamaha RX-A870.

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      Yamaha RX-A2A
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      Yamaha RX-A2A vs Yamaha RX-A870
      Higher DAC Specs 384 kHz/32 Bit vs 192 kHz/24 Bit
      Dolby Atmos Height Virtualization vs
      Higher Resolution Music Playback via USB up to 192 kHz/32 Bit vs up to 192 kHz
      HDR10+ vs
      Newer HDCP Version 2.3 vs 2.3
      QMS vs
      Auto Low Latency Mode Pass-through vs
      VRR vs
      QFT vs
      Video Signal Passthrough up to 8K 50/60Hz and 4K 100/120Hz 4:4:4 vs up to 4K/60p 4:4:4
      AirPlay AirPlay 2 vs AirPlay
      More 8K Inputs 7 vs
      More Scenes SCENE (8 sets) vs SCENE (4 sets)
      Lower THD 0.04% (AUDIO 3 etc. to Front, Pure Direct, 20 Hz - 20 kHz, 50 W, 8 Ω) vs 0.06% (AV 2 etc. to Front, Pure Direct, 20 Hz - 20 kHz, 50 W, 8 Ω)
      Higher Maximum Input Sensitivity (Line) 2.4 V (1 kHz, 0.5% THD) vs 2.3 V (1 kHz, 0.5% THD)
      Higher Maximum Preout Level and Impedance 2.0 V vs 1.6 V
      Higher DSD Sampling Rate via USB 11.2 MHz, 5.6 MHz, 2.8 MHz vs 5.6 MHz, 2.8 MHz
      Wi-Fi Standard IEEE 802.11 a/b/g/n/ac vs IEEE 802.11 b/g/n
      Wi-Fi Terminal Frequency 2.4 GHz, 5 GHz vs 2.4 GHz
      Newer Bluetooth Version 4․2 vs 2․1 + EDR
      Higher FM S/N Ratio Mono/Stereo: 69 dB/68 dB vs Mono/Stereo: 69 dB/67 dB
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      4. Advantage of Yamaha RX-A870

      This section shows those features and specifications which are the reason to choose Yamaha RX-A870 over Yamaha RX-A2A.

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      Yamaha RX-A870
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      Yamaha RX-A2A vs Yamaha RX-A870
      More Advanced Auto Speaker Calibration System YPAO sound optimization with Multipoint Measurement vs YPAO sound optimization (R.S.C. with Multipoint measurement)
      Analog To HDMI Upconversion vs Component**, Composite
      More HDMI Inputs 7 vs 8 (1 front)
      More HDMI Outputs 1 vs 2
      More Optical Inputs 1 vs 2
      More Coaxial Inputs/Outputs 1 vs 2
      More RCA Line Inputs 3 vs 4 (1 front)
      More RCA Pre-Outs 2.2 vs 7.2
      More Composite Video Inputs vs 1
      More Component Video Inputs vs 1
      Front A/V Inputs USB vs HDMI, USB, mini-jack Audio
      Zone B Video Output vs HDMI
      RS-232C Interface vs
      Bigger Power Supply 360 W vs 400 W
      Higher Power Output (8 Ω, 1 kHz, 2 channel Driven, FTC) 105 W (0.9% THD) vs 110 W (0.9% THD)
      Higher Rated Power Output (8 Ω, 1 kHz, 1 channel Driven) 125 W (0.9% THD) vs 130 W (0.9% THD)
      Higher Maximum Effective Output Power (8 Ω, 1 kHz, 1 channel Driven, JEITA) 150 W (10% THD) vs 160 W (10% THD)
      Higher Maximum Input Sensitivity (Phono) 45 mV (1 kHz, 0.5% THD) vs 60 mV (1 kHz, 0.1% THD)
      Better Channel Separation at 1 kHz/10 kHz (LINE) 70 dB/50 dB vs 75 dB/50 dB

      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 Yamaha RX-A2A Yamaha RX-A870
        Dolby Atmos up to 5.1.2
        DTS:X up to 5.1.2
        DSD via HDMI 2-ch/Multi-ch Input 2-ch/Multi-ch Input
        Auto Speaker Calibration System with Mic. YPAO sound optimization with Multipoint Measurement YPAO sound optimization (R.S.C. with Multipoint measurement)
        HDR10
        Dolby Vision
        eARC
        New HDCP Version2.32.3
        Wi-Fi with Wireless Direct
        Bluetooth SBC, AAC SBC, AAC
        Works with Amazon Alexa on MusicCast (Voice control using your Alexa device like Echo or Echo Dot)
        Many HDMI Inputs78 (1 front)
        USB InputUSB memory, Portable Audio PlayerUSB memory, portable audio player
        Phono Input
        RCA Pre-Outs2.27.2
        Ethernet
        Analog Tuner FM/AM FM/AM
        Pandora
        Spotify
        Tidal
      WEAKNESSES Yamaha RX-A2A Yamaha RX-A870
        No Front Wide Channel Support
        No IMAX Enhanced
        No Auro 3D with Auro-Matic Upmixer
        No Digital Radio

      6. Amplifier

      Yamaha RX-A2A Yamaha RX-A870

      7 channel Amplifier: Yamaha RX-A2A 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.

      7 channel Amplifier: Yamaha RX-A870 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-A2A Yamaha RX-A870
        Channels7.27.2
        Power Output100 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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        Yamaha RX-A2A
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        7. Speaker Configurations

        Yamaha RX-A2A's and Yamaha RX-A870's amplifiers can be assigned for different speaker configurations.

        • Dolby Atmos Configurations: The following speaker configurations are supported for Dolby Atmos:
        • Yamaha RX-A2A: 5.2.2 with internal amplifier.
        • Yamaha RX-A870: 5.2.2 with internal amplifier.
        • DTS:X Configurations: The following speaker configurations are supported for DTS:X:
        • Yamaha RX-A2A: The speaker configurations for DTS:X are the same as for Dolby Atmos - 5.2.2 with internal amplifier.
        • Yamaha RX-A870: The speaker configurations for DTS:X are the same as for Dolby Atmos - 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-A2A: 5.2, 7.2 with internal amplifier.
        • Yamaha RX-A870: 5.2, 7.2 with internal amplifier.
        • 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

        Yamaha RX-A2A and Yamaha RX-A870 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: Yamaha RX-A2A 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

        Yamaha RX-A2A and Yamaha RX-A870 support DTS:X.

        • DTS Neural:X: Both models feature 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 Dialog Control: Both models have 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.
        AUDIO DECODING Yamaha RX-A2A Yamaha RX-A870
        Dolby Atmos up to 5.1.2
        Dolby Atmos Height Virtualization
        Dolby Atmos Music
        Dolby TrueHD
        Dolby Digital Plus
        Dolby Surround Upmixer
        Dolby Pro Logic
        Dolby Digital EX
        DTS:X up to 5.1.2
        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

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        Yamaha RX-A870
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        9. HDMI

        Yamaha RX-A2A comes with 7 HDMI 2.1 inputs with 8K support. It has 1 output.

        Yamaha RX-A870 comes with 8 HDMI inputs. It has 2 outputs which work parallelly and output the same signal.

        • 8K/60Hz and 4K/120Hz Passthrough on Yamaha RX-A2A: All inputs pass up to 8K 50/60Hz and 4K 100/120Hz 4:4:4 video signal.
          4K/60Hz Passthrough on Yamaha RX-A870: All inputs pass up to 4K/60p 4:4:4 video signal.
        • 4K Upscaling: Both receivers can upscale up to 4K 60p 4:4:4 from HDMI sources. Yamaha RX-A870 can also upscale from analog sources.
        • Analog To HDMI Upconversion: Yamaha RX-A870 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 both models).
        • HDCP Copy Protection: Yamaha RX-A2A is HDCP 2.3 and Yamaha RX-A870 is HDCP 2.2 compliant which is a requirement for 4K/HDR copy-protected content transmission.
        • Quick Media Switching (QMS): With HDMI 2.1a, Quick Media Switching for movies and video uses the HDMI VRR mechanism to eliminate the blackout period when an HDMI Source device switches its video mode. As long as the resolution remains the same and only the frame rate changes, QMS will instantly switch between frame rates. QMS eliminates A/V blackouts by using VRR technology to change frame rates, allowing instant changes from 24Hz to 60Hz frame rate, and anywhere in-between. The viewer never sees blank screens and gets a seamless experience (available on Yamaha RX-A2A only).
        • 3D Ready: Both receivers are able to pass 3D video through HDMI.

        HDR (High Dynamic Range)

        Yamaha RX-A2A supports HDR10, HDR10+, Dolby Vision and Hybrid Log-Gamma.

        Yamaha RX-A870 supports HDR10, Dolby Vision and Hybrid Log-Gamma. 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)

        Yamaha RX-A2A and Yamaha RX-A870 support 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

        Yamaha RX-A2A supports Auto Low Latency Mode (ALLM), Variable Refresh Rate (VRR) and Quick Frame Transport (QFT) for lag-free and smooth gaming.



        VIDEO FEATURES Yamaha RX-A2A Yamaha RX-A870
        HDR10
        HDR10+
        Dynamic HDR
        BT.2020 color space
        Dolby Vision
        HLG (Hybrid Log Gamma)
        HDBaseT Compatible
        Enhanced Audio Return Channel (eARC)
        HDCP Version2.32.3
        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
        Video Signal Upscaling up to 4K 60p 4:4:4 up to 4K 60p 4:4:4

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        Yamaha RX-A2A
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        10. Inputs and Outputs

        Audio

        • Phono Input: There is an MM phono input on Yamaha RX-A2A and Yamaha RX-A870 with built-in phono stage for connecting the moving magnet cartridge output of the turntable directly to the receiver.
        • Analog Pre-Outs: Yamaha RX-A2A has 2.2 and Yamaha RX-A870 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, both receivers have 7 channel processing but have only 7 channel amplifiers, so they need external amplifiers connected to the analog pre-outs in order to reach their maximum speaker configurations.
        • Analog Line Inputs: There are 3 pair of line inputs on Yamaha RX-A2A and 4 pair of line inputs on Yamaha RX-A870 for connecting sources with analog outputs.
        • Digital Inputs: 1 optical input and 1 coaxial input are available on Yamaha RX-A2A and 2 optical inputs and 2 coaxial inputs are available on Yamaha RX-A870 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-A2A
          Inputs:           7   Outputs: 1
          8K Inputs: 7.
        • Yamaha RX-A870
          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-A2A
          Inputs:           0   Outputs: 0.
        • Yamaha RX-A870
          Inputs:           1   Outputs: 0.
        • 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-A870 supports up to 480i/576i resolution on Component video connectors.
        • Yamaha RX-A2A
          Inputs:           0   Outputs: 0.
        • Yamaha RX-A870
          Inputs:           1   Outputs: 0.

        Front A/V Inputs

        • Yamaha RX-A2A: USB
        • Yamaha RX-A870: HDMI, USB, mini-jack Audio

        Yamaha RX-A2A

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        Yamaha RX-A870

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        TERMINALS Yamaha RX-A2A Yamaha RX-A870
        HDMI Inputs78 (1 front)
        HDMI Outputs12
        8K Inputs7
        USB InputUSB memory, Portable Audio PlayerUSB memory, portable audio player
        USB DC Out Port
        Optical Inputs12
        Optical Outputs
        Coaxial Inputs12
        RCA Line Inputs34 (1 front)
        RCA Line Outputs
        XLR Line Inputs
        Phono Input
        Multi-Channel Input
        RCA Pre-Outs2.27.2
        XLR Pre-outs
        Composite Video Inputs1
        Composite Video Outputs
        S-Video Inputs
        S-Video Outputs
        Component Video Inputs1
        Component Video Outputs

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        Yamaha RX-A870
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        11. Evaluations

        We evaluated Yamaha RX-A2A and Yamaha RX-A870 and gave both of them the score of 89 out of 100. 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-A2A

        Yamaha RX-A870

        OVERALL
        89
        OVERALL
        89

        Amplifier

        EXCELLENT
        88
        •   7.2 Channels
        •   Power Output - 100 W
        EXCELLENT
        89
        •   7.2 Channels
        •   Power Output - 100 W

        Audio Features

        EXCELLENT
        86
        •   7.2 Channels
        •   No Front Wide Channel Support
        •   7.1 Channel Processing
        •   Dolby Atmos
        •   Dolby Atmos Height Virtualization
        •   DTS:X
        •   No IMAX Enhanced
        •   No Auro 3D with Auro-Matic Upmixer
        •   DSD via HDMI
        GOOD
        84
        •   7.2 Channels
        •   No Front Wide Channel Support
        •   7.1 Channel Processing
        •   Dolby Atmos
        •   No Dolby Atmos Height Virtualization
        •   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
        •   QFT
        •   8K Passthrough
        EXCELLENT
        95
        •   HDR10
        •   No HDR10+
        •   Dolby Vision
        •   No 8K Passthrough
        •   Analog To HDMI Upconversion

        Connectivity

        EXCELLENT
        86
        •   eARC
        •   New HDCP Version
        •   Wi-Fi
        •   Bluetooth
        •   Works with Amazon Alexa
        •   Google Assistant
        •   7 HDMI Inputs
        •   1 HDMI Outputs
        •   7 8K Inputs
        •   USB Input
        •   Few RCA Line Inputs
        •   Phono Input
        •   RCA Pre-Outs
        •   No Composite Video Inputs
        •   Ethernet
        •   Bluetooth 4․2
        EXCELLENT
        87
        •   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

        GOOD
        79
        •   2 Zones
        GOOD
        82
        •   2 Zones

        Radio

        EXCELLENT
        97
        •   Analog Tuner
        •   Pandora
        •   Spotify
        •   Tidal
        EXCELLENT
        97
        •   Analog Tuner
        •   Pandora
        •   Spotify
        •   Tidal

        12. Specifications

        GENERAL Yamaha RX-A2A Yamaha RX-A870
        BrandYamahaYamaha
        SeriesAventageAventage
        ModelRX-A2ARX-A870
        TypeA/V ReceiverA/V Receiver
        CountryUSAUSA and Canada
        Release Year20202017
        PredecessorYamaha RX-A880 Yamaha RX-A860
        SuccessorYamaha RX-A880
        AMPLIFIER Yamaha RX-A2A Yamaha RX-A870
        Channels7.27.2
        Power Output100 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-A2A Yamaha RX-A870
        Surround:AI™
        DACBurr-Brown PCM5102ABurr-Brown
        DAC Specs384 kHz/32 Bit192 kHz/24 Bit
        Maximum Channel Processing7.17.1
        Air Studios Monitor Certification
        Dolby Atmos up to 5.1.2
        Dolby Atmos Height Virtualization
        Dolby Atmos Music
        Dolby TrueHD
        Dolby Digital Plus
        Dolby Surround Upmixer
        Dolby Pro Logic
        Dolby Digital EX
        DTS:X up to 5.1.2
        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, MPEG-4 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/32 Bit 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 enhancer 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
        Straight Decoding Mode
        Pure Direct Mode with Video On mode
        CINEMA DSP 3D
        DSP Programs1717
        SILENT CINEMA / Virtual CINEMA DSP Virtual CINEMA FRONT
        Virtual Speakers including surround back including surround back
        Independent Subwoofer Outputs
        CALIBRATION Yamaha RX-A2A Yamaha RX-A870
        Auto Speaker Calibration System with Mic. YPAO sound optimization with Multipoint Measurement YPAO sound optimization (R.S.C. with Multipoint measurement)
        YPAO Volume
        PEQ for SUBDown to 15.6 Hz
        VIDEO FEATURES Yamaha RX-A2A Yamaha RX-A870
        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 Version2.32.3
        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
        Video Signal Upscaling up to 4K 60p 4:4:4 up to 4K 60p 4:4:4
        Analog To HDMI Upconversion Component**, Composite
        Component Video Upscaling
        Analog to Analog Video conversion
        Component Video Maximum Resolution480i/576i
        Video Parameter Adjustments
        isf Certified Calibration Control
        CONNECTIVITY Yamaha RX-A2A Yamaha RX-A870
        Wi-Fi with Wireless Direct
        Bluetooth SBC, AAC SBC, AAC
        Works with Amazon Alexa on MusicCast (Voice control using your Alexa device like Echo or Echo Dot)
        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 (iPhone® / iPad® / Android™ phone / tablet) (iPhone® / iPad® / Android™ phone / tablet)
        InstaPrevue Input Source Prevue
        TERMINALS Yamaha RX-A2A Yamaha RX-A870
        HDMI Inputs78 (1 front)
        HDMI Outputs12
        8K Inputs7
        USB InputUSB memory, Portable Audio PlayerUSB memory, portable audio player
        USB DC Out Port
        Optical Inputs12
        Optical Outputs
        Coaxial Inputs12
        RCA Line Inputs34 (1 front)
        RCA Line Outputs
        XLR Line Inputs
        Phono Input
        Multi-Channel Input
        RCA Pre-Outs2.27.2
        XLR Pre-outs
        Composite Video Inputs1
        Composite Video Outputs
        S-Video Inputs
        S-Video Outputs
        Component Video Inputs1
        Component Video Outputs
        Ethernet
        Ethernet Switch
        PC In
        Front A/V InputsUSBHDMI, USB, mini-jack Audio
        Speaker A/B
        Headphone Out6.3 mm (1/4")6.3 mm (1/4")
        Detachable Power Cord
        dockport
        ZONES Yamaha RX-A2A Yamaha RX-A870
        Number of Zones22
        Powered ZonesZone 2Zone 2
        Zone 2 OutsRCA PreoutRCA Preout
        Zone B Video Output HDMI
        Zone GUI
        RS-232C Interface
        +12V Trigger Output11
        Remote (IR) Input/Output1 / 11 / 1
        Party Mode
        MISCELLANEOUS Yamaha RX-A2A Yamaha RX-A870
        On-Screen DisplayGraphical User InterfaceGraphical User Interface
        SCENESCENE (8 sets)SCENE (4 sets)
        Web Control
        PreAmp Mode
        RADIO Yamaha RX-A2A Yamaha RX-A870
        Analog Tuner FM/AM FM/AM
        Presets4040
        Digital Radio
        Internet Radio
        Pandora
        Spotify
        Tidal
        Deezer
        Napster
        SiriusXM
        CONSTRUCTION Yamaha RX-A2A Yamaha RX-A870
        A.R.T. Wedge
        Speaker Terminals99
        Large Speaker Terminals99
        Color-Coded Speaker Terminals
        Gold plated RCA terminals
        POWER Yamaha RX-A2A Yamaha RX-A870
        Power SupplyAC 120 V, 60 HzAC 120 V, 60 Hz
        Power Consumption360 W400 W
        Standby Power0.1 W0.1 W
        ECO Mode / Hybrid Standby Function
        Auto Power Standby
        PHYSICAL Yamaha RX-A2A Yamaha RX-A870
        Dimensions (W x H x D)435 mm x 171 mm x 372 mm (with antenna: 435 mm x 245 mm x 372 mm)
        17-1/8" x 6-3/4" x 14-5/8" (with antenna up: 17-1/8" x 9-5/8" x 14-5/8")        		435 mm x 171 mm x 380 mm (with antenna: 435 mm x 234 mm x 380 mm)
        Weight10.2 kg (22.5 lbs)10.5 kg (23.1 lbs)
        SPECIFICATIONS Yamaha RX-A2A Yamaha RX-A870
        Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)100 W (0.06% THD)100 W (0.06% THD)
        Power Output (8 Ω, 1 kHz, 2 channel Driven, FTC)105 W (0.9% THD)110 W (0.9% THD)
        Rated Power Output (8 Ω, 1 kHz, 1 channel Driven)125 W (0.9% THD)130 W (0.9% THD)
        Maximum Effective Output Power (8 Ω, 1 kHz, 1 channel Driven, JEITA)150 W (10% THD)160 W (10% THD)
        Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA or IEC)160 W (10% THD)
        Rated Power Output (4 Ω, 1 kHz, 1 channel Driven)150 W (0.9% 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
        THD0.04% (AUDIO 3 etc. to Front, Pure Direct, 20 Hz - 20 kHz, 50 W, 8 Ω)0.06% (AV 2 etc. to Front, Pure Direct, 20 Hz - 20 kHz, 50 W, 8 Ω)
        THD (Phono)0.02% (Phono to PRE OUT, Pure Direct, 1 kHz, 1 V)0.02% (Phono to SPEAKER OUT (Front), 20 Hz - 20 kHz, 1 V)
        Damping Factor100 (Front, 1 kHz, 8 Ω)100 (Front, 20 Hz - 20 kHz, 8 Ω)
        Input Sensitivity and Impedance (Line)200 mV/47 kΩ200 mV/47 kΩ
        Input Sensitivity and Impedance (Phono MM)3.5 mV/47 kΩ3.5 mV/47 kΩ
        Maximum Input Sensitivity (Line)2.4 V (1 kHz, 0.5% THD)2.3 V (1 kHz, 0.5% THD)
        Maximum Input Sensitivity (Phono)45 mV (1 kHz, 0.5% THD)60 mV (1 kHz, 0.1% THD)
        Rated Preout Level and Impedance1.0 V/470 Ω1.0 V/2.7 kΩ (Front)
        Maximum Preout Level and Impedance2.0 V1.6 V
        Rated Headphone Jack Output Level and Impedance100 mV/560 Ω (1 kHz, 50 mV, 8 Ω)
        S/N Ratio (Line, IHF-A)110 dB110 dB
        S/N Ratio (Phono MM, IHF-A)95 dB95 dB
        Phono RIAA Deviation0±0.5 dB (20 Hz - 20 kHz)±0.5 dB (20 Hz - 20 kHz)
        Frequency Response (Analog In)+0/-3 dB (AUDIO 3 etc. to Front, Pure Direct, 10 Hz to 100 kHz)+0/-3 dB (AV 2 etc. to Front, 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)70 dB/50 dB75 dB/50 dB
        Channel Separation at 1 kHz/10 kHz (Phono)60 dB/55 dB60 dB/55 dB
        DSD Sampling Rates via HDMI2.8 MHz2.8 MHz
        DSD Sampling Rates via USB11.2 MHz, 5.6 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)
        Video Maximum Input1.5 Vp-p
        Ethernet Standard10BASE-T/100BASE-TX10BASE-T/100BASE-TX
        Wi-Fi StandardIEEE 802.11 a/b/g/n/acIEEE 802.11 b/g/n
        Wi-Fi Terminal Frequency2.4 GHz, 5 GHz2.4 GHz
        Bluetooth Version4․22․1 + EDR
        Bluetooth Frequency2.4 GHz2.4 GHz
        USB TerminalUSB2.0 5 V, 1 AUSB2.0 5 V, 1 A
        FM Frequency87.5 MHz - 107.9 MHz87.5 MHz - 107.9 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: 69 dB/68 dBMono/Stereo: 69 dB/67 dB
        FM Harmonic Distortion (IHF, 1 kHz)Mono/Stereo: 0.5%/0.6%Mono/Stereo: 0.5%/0.6%
        AM Frequency530 kHz - 1710 kHz530 kHz - 1710 kHz
        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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