Denon AVR-X1800H vs Yamaha RX-A4A

      Denon AVR-X1800H

      Yamaha RX-A4A
      89
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      90
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      Highlights

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

      Highlights

      • 7.2 Channels
      • 7.1 Channel Processing
      • 110 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

      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 Denon AVR-X1800H
      4. Advantage of Yamaha RX-A4A
      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 Denon AVR-X1800H to Yamaha RX-A4A 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 Denon AVR-X1800H's being less powerful.


      Denon AVR-X1800H Yamaha RX-A4A

      Denon AVR-X1800H was introduced in 2024. It is equipped with 7 channel amplifier with 80 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 8K 50/60Hz and 4K 100/120Hz 4:4:4 video signal.

      Yamaha RX-A4A was introduced in 2021. It is equipped with 7 channel amplifier with 110 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.

      We evaluated Denon AVR-X1800H and Yamaha RX-A4A and gave them scores of 89 and 90 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.

      Denon AVR-X1800H

      Yamaha RX-A4A

      Amplifier
      86
      Amplifier
      90
      Audio Features
      87
      Audio Features
      88
      Video Features
      100
      Video Features
      99
      Connectivity
      86
      Connectivity
      88
      Zones
      77
      Zones
      80
      Radio
      96
      Radio
      97
      OVERALL
      89
      OVERALL
      90

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

      2. Pros and Cons

      In this section we present pros and cons of Denon AVR-X1800H and Yamaha RX-A4A.

      PROS

      Denon AVR-X1800H

      Yamaha RX-A4A

      •   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
      •   8K Upscaling
      •   Wi-Fi
      •   Bluetooth
      •   Works with Amazon Alexa
      •   Google Assistant
      •   HEOS
      •   3 8K Inputs
      •   USB Input
      •   Phono Input
      •   RCA Pre-Outs
      •   Ethernet
      •   Analog Tuner
      •   Pandora
      •   Spotify
      •   Tidal
      •   Bluetooth 5․0
      •   High Power Output - 110 W
      •   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
      •   4 HDMI Outputs
      •   7 8K Inputs
      •   USB Input
      •   Phono Input
      •   RCA Pre-Outs
      •   Ethernet
      •   Analog Tuner
      •   Pandora
      •   Spotify
      •   Tidal

      CONS

      Denon AVR-X1800H

      Yamaha RX-A4A

      •   Low Power Output - 80 W
      •   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 IMAX Enhanced
      •   No Auro 3D with Auro-Matic Upmixer
      •   Few RCA Line Inputs
      •   No Composite Video Inputs
      •   No Digital Radio


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

      AVERAGE

      Denon AVR-X1800H

      Yamaha RX-A4A

      •   7.2 Channels
      •   7.1 Channel Processing
      •   6 HDMI Inputs
      •   2 Zones
      •   7.2 Channels
      •   7.1 Channel Processing
      •   2 Zones
      •   Bluetooth 4․2

      3. Advantage of Denon AVR-X1800H

      This section shows those features and specifications which are the reason to choose Denon AVR-X1800H over Yamaha RX-A4A.

      Check the Price

      Denon AVR-X1800H
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      Denon AVR-X1800H vs Yamaha RX-A4A
      Dolby Atmos Music vs
      Dolby Digital EX vs
      DTS Virtual:X vs
      Audyssey Dynamic EQ vs
      Audyssey Dynamic Volume vs
      Dynamic HDR vs
      Video Signal Upscaling up to 8K 50/60Hz and 4K 100/120Hz 4:4:4 vs up to 4K 60p 4:4:4
      isf Certified Calibration Control vs
      USB DC Out Port 5 V, 1.5 A vs
      Speaker A/B assignable vs
      Color-Coded Speaker Terminals vs
      Bigger Power Supply 430 W vs 410 W
      Higher Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA) 175 W (10% THD) vs 170 W (10% THD)
      Newer Bluetooth Version 5․0 vs 4․2
      Wider AM Frequency Range 520 kHz - 1710 kHz vs 530 kHz - 1710 kHz
      Check out other receivers which are frequently compared to Denon AVR-X1800H.
      Denon AVR-X2800H
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      7.2 channel

      125 W

      Denon AVR-X1700H
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      7.2 channel

      80 W

      Denon AVR-S970H
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      7.2 channel

      90 W

      Yamaha RX-V6A
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      7.2 channel

      100 W

      Denon AVR-S760H
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      7.2 channel

      75 W

      Denon AVR-S770H
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      7.2 channel

      75 W

      Onkyo TX-NR6100
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      7.2 channel

      100 W

      Pioneer VSX-935
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      7.2 channel

      80 W

      Sony STR-AN1000
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      7.2 channel

      100 W

      Yamaha RX-A2A
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      7.2 channel

      100 W

      Marantz Cinema 70s
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      7.2 channel

      50 W

      Denon AVR-X3800H
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      9.4 channel

      105 W

      4. Advantage of Yamaha RX-A4A

      This section shows those features and specifications which are the reason to choose Yamaha RX-A4A over Denon AVR-X1800H.

      Check the Price

      Yamaha RX-A4A
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      Denon AVR-X1800H vs Yamaha RX-A4A
      Higher Power Output 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) vs 110 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      Network Audio Formats MP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, DSD vs MP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
      Music Playback via USB MP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, DSD vs MP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
      Higher Resolution Music Playback via USB up to 192 kHz vs up to 384 kHz/32 Bit
      High Resolution Audio Formats via USB Apple Lossless, WAV, FLAC, DSD vs Apple Lossless, WAV, FLAC, AIFF, DSD
      Dialogue Lift vs
      High-resolution Music Enhancer vs
      Independent Subwoofer Outputs vs
      QMS vs
      More HDMI Inputs 6 vs 7
      More HDMI Outputs 1 vs 3 (2 for MAIN, 1 for ZONE2)
      More 8K Inputs 3 vs 7
      More RCA Line Inputs 2 vs 3
      More RCA Pre-Outs 2.2 vs 7.2
      Zone 2 Outs Pre Out vs RCA Preout
      +12V Trigger Output vs 2
      Remote (IR) Input/Output 1 / 0 vs 1 / 1
      Display 1 lines FLD vs High-resolution LCD display
      More Speaker Terminals 7 vs 9
      More Large Speaker Terminals 7 vs 9
      Higher Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC) 80 W (0.08% THD) vs 110 W (0.06% THD)
      Higher S/N Ratio (Line, IHF-A) 98 dB vs 110 dB
      Higher S/N Ratio (Phono MM, IHF-A) 74 dB vs 95 dB
      Higher DSD Sampling Rate via USB 5.6 MHz, 2.8 MHz vs 11.2 MHz, 5.6 MHz, 2.8 MHz
      Lower FM Harmonic Distortion (IHF, 1 kHz) Mono/Stereo: 0.7%/1.0% vs Mono/Stereo: 0.5%/0.6%
      Check out other receivers which are frequently compared to Yamaha RX-A4A.
      Yamaha RX-V6A
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      7.2 channel

      100 W

      Yamaha RX-A2A
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      7.2 channel

      100 W

      Yamaha RX-A6A
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      9.2 channel

      150 W

      Yamaha RX-A8A
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      11.2 channel

      150 W

      Yamaha RX-V4A
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      5.2 channel

      80 W

      Denon AVC-X3800H
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      9.4 channel

      105 W

      Onkyo TX-RZ50
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      9.2 channel

      120 W

      Denon AVR-X3800H
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      9.4 channel

      105 W

      Marantz Cinema 60
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      7.2 channel

      100 W

      Onkyo TX-NR7100
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      9.2 channel

      100 W

      Marantz Cinema 50
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      9.4 channel

      110 W

      Onkyo TX-NR6100
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      7.2 channel

      100 W

      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 Denon AVR-X1800H Yamaha RX-A4A
        Dolby Atmos up to 5.1.2
        Dolby Atmos Height Virtualization
        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. Audyssey MultEQ XT YPAO sound optimization with R.S.C., Multipoint, 3D, 64-Bit High Precision EQ Calculation, Low Frequency mode and Angle measurement
        HDR10
        HDR10+
        Dolby Vision
        HDMI Version2.12.1
        eARC
        New HDCP Version2.32.3
        Auto Low Latency Mode Pass-through
        VRR
        QFT
        8K Passthroughup to 8K 50/60Hz and 4K 100/120Hz 4:4:4up to 8K 50/60Hz and 4K 100/120Hz 4:4:4
        Wi-Fi
        Bluetooth SBC SBC, AAC
        Works with Amazon Alexa
        Google Assistant
        Many 8K Inputs37
        USB Input1 Front for USB memoryUSB memory, Portable Audio Player
        Phono Input
        RCA Pre-Outs2.27.2
        Ethernet
        Analog Tuner FM/AM FM/AM
        Pandora
        Spotify
        Tidal
      WEAKNESSES Denon AVR-X1800H Yamaha RX-A4A
        No Front Wide Channel Support
        No IMAX Enhanced
        No Auro 3D with Auro-Matic Upmixer
        Few RCA Line Inputs23
        No Composite Video Inputs
        No Digital Radio

      6. Amplifier

      Denon AVR-X1800H Yamaha RX-A4A

      7 channel Amplifier: Denon AVR-X1800H features 7 channel power amplifier. It is rated at 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) and is able to drive 4 ohm speakers.

      7 channel Amplifier: Yamaha RX-A4A features 7 channel power amplifier. It is rated at 110 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) and is able to drive 4 ohm speakers.


        AMPLIFIER Denon AVR-X1800H Yamaha RX-A4A
        Channels7.27.2
        Power Output80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)110 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 assignable

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        Denon AVR-X1800H
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        7. Speaker Configurations

        Denon AVR-X1800H's and Yamaha RX-A4A's amplifiers can be assigned for different speaker configurations.

        • Dolby Atmos Configurations: The following speaker configurations are supported for Dolby Atmos:
        • Denon AVR-X1800H: 5.2.2 with internal amplifier.
        • Yamaha RX-A4A: 5.2.2 with internal amplifier.
        • DTS:X Configurations: The following speaker configurations are supported for DTS:X:
        • Denon AVR-X1800H: The speaker configurations for DTS:X are the same as for Dolby Atmos - 5.2.2 with internal amplifier.
        • Yamaha RX-A4A: 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:
        • Denon AVR-X1800H: 5.2, 7.2 with internal amplifier.
        • Yamaha RX-A4A: 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

        Denon AVR-X1800H and Yamaha RX-A4A 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: Both models support 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

        Denon AVR-X1800H and Yamaha RX-A4A 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 Virtual:X: Denon AVR-X1800H 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: 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 Denon AVR-X1800H Yamaha RX-A4A
        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
        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-A4A
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        9. HDMI 2.1

        Denon AVR-X1800H comes with 3 HDMI 2.1 inputs with 8K support and 3 inputs with 4K support. It has 1 output.

        Yamaha RX-A4A comes with 7 HDMI 2.1 inputs with 8K support. It has 3 outputs - 2 for MAIN and 1 for ZONE2.

        • 8K/60Hz and 4K/120Hz Passthrough on Denon AVR-X1800H: 3 out of 6 inputs pass up to 8K 50/60Hz and 4K 100/120Hz 4:4:4 and the rest of the inputs pass up to 4K 50/60Hz 4:4:4 video signal.
          8K/60Hz and 4K/120Hz Passthrough on Yamaha RX-A4A: All inputs pass up to 8K 50/60Hz and 4K 100/120Hz 4:4:4 video signal.
        • 8K Upscaling on Denon AVR-X1800H: It can upscale up to 8K 50/60Hz and 4K 100/120Hz 4:4:4 from HDMI sources.
          4K Upscaling on Yamaha RX-A4A: It can upscale up to 4K 60p 4:4:4 from HDMI sources.
        • 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 2.3 Copy Protection: Both receivers are HDCP 2.3 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-A4A only).
        • 3D Ready: Both receivers are able to pass 3D video through HDMI.

        HDR (High Dynamic Range)

        Denon AVR-X1800H supports HDR10, HDR10+, Dolby Vision, Dynamic HDR and Hybrid Log-Gamma.

        Yamaha RX-A4A supports HDR10, 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)

        Denon AVR-X1800H and Yamaha RX-A4A 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

        Both receivers support Auto Low Latency Mode (ALLM), Variable Refresh Rate (VRR) and Quick Frame Transport (QFT) for lag-free and smooth gaming.



        VIDEO FEATURES Denon AVR-X1800H Yamaha RX-A4A
        HDR10
        HDR10+
        Dynamic HDR
        BT.2020 color space
        Dolby Vision
        HLG (Hybrid Log Gamma)
        HDMI Version2.12.1
        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 8K 50/60Hz and 4K 100/120Hz 4:4:4
        Video Signal Upscaling up to 8K 50/60Hz and 4K 100/120Hz 4:4:4 up to 4K 60p 4:4:4

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        Denon AVR-X1800H
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        10. Inputs and Outputs

        Audio

        • Phono Input: There is an MM phono input on Denon AVR-X1800H and Yamaha RX-A4A with built-in phono stage for connecting the moving magnet cartridge output of the turntable directly to the receiver.
        • Analog Pre-Outs: Denon AVR-X1800H has 2.2 and Yamaha RX-A4A 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 2 pair of line inputs on Denon AVR-X1800H and 3 pair of line inputs on Yamaha RX-A4A for connecting sources with analog outputs.
        • Digital Inputs: 2 optical inputs and 1 coaxial input are available for digital audio connections on both receivers.
        • Headphone Output: There is a 6.3 mm (1/4") headphone output jack on the front panel of each receiver.

        Video

        • HDMI:
        • Denon AVR-X1800H
          Inputs:           6   Outputs: 1
          8K Inputs: 3.
        • Yamaha RX-A4A
          Inputs:           7   Outputs: 3 (2 for MAIN, 1 for ZONE2)
          8K Inputs: 7.

        Front A/V Inputs

        • Denon AVR-X1800H: USB
        • Yamaha RX-A4A: USB

        Denon AVR-X1800H

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        Yamaha RX-A4A

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        TERMINALS Denon AVR-X1800H Yamaha RX-A4A
        HDMI Inputs67
        HDMI Outputs13 (2 for MAIN, 1 for ZONE2)
        8K Inputs37
        USB Input1 Front for USB memoryUSB memory, Portable Audio Player
        USB DC Out Port 5 V, 1.5 A
        Optical Inputs22
        Optical Outputs
        Coaxial Inputs11
        RCA Line Inputs23
        RCA Line Outputs
        XLR Line Inputs
        Phono Input
        Multi-Channel Input
        RCA Pre-Outs2.27.2
        XLR Pre-outs
        Composite Video Inputs
        Composite Video Outputs
        S-Video Inputs
        S-Video Outputs
        Component Video Inputs
        Component Video Outputs

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        Yamaha RX-A4A
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        11. Evaluations

        We evaluated Denon AVR-X1800H and Yamaha RX-A4A and gave them scores of 89 and 90 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.


        Denon AVR-X1800H

        Yamaha RX-A4A

        OVERALL
        89
        OVERALL
        90

        Amplifier

        EXCELLENT
        86
        •   7.2 Channels
        •   Low Power Output - 80 W
        EXCELLENT
        90
        •   7.2 Channels
        •   High Power Output - 110 W

        Audio Features

        EXCELLENT
        87
        •   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
        EXCELLENT
        88
        •   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

        Video Features

        EXCELLENT
        100
        •   HDR10
        •   HDR10+
        •   Dolby Vision
        •   HDMI 2.1
        •   Auto Low Latency Mode Pass-through
        •   VRR
        •   QFT
        •   8K Passthrough
        •   8K Upscaling
        EXCELLENT
        99
        •   HDR10
        •   HDR10+
        •   Dolby Vision
        •   HDMI 2.1
        •   Auto Low Latency Mode Pass-through
        •   VRR
        •   QFT
        •   8K Passthrough

        Connectivity

        EXCELLENT
        86
        •   eARC
        •   New HDCP Version
        •   Wi-Fi
        •   Bluetooth
        •   Works with Amazon Alexa
        •   Google Assistant
        •   HEOS
        •   6 HDMI Inputs
        •   1 HDMI Outputs
        •   3 8K Inputs
        •   USB Input
        •   Few RCA Line Inputs
        •   Phono Input
        •   RCA Pre-Outs
        •   No Composite Video Inputs
        •   Ethernet
        •   Bluetooth 5․0
        EXCELLENT
        88
        •   eARC
        •   New HDCP Version
        •   Wi-Fi
        •   Bluetooth
        •   Works with Amazon Alexa
        •   Google Assistant
        •   7 HDMI Inputs
        •   4 HDMI Outputs
        •   7 8K Inputs
        •   USB Input
        •   Few RCA Line Inputs
        •   Phono Input
        •   RCA Pre-Outs
        •   No Composite Video Inputs
        •   Ethernet
        •   Bluetooth 4․2

        Zones

        GOOD
        77
        •   2 Zones
        GOOD
        80
        •   2 Zones

        Radio

        EXCELLENT
        96
        •   Analog Tuner
        •   Pandora
        •   Spotify
        •   Tidal
        EXCELLENT
        97
        •   Analog Tuner
        •   Pandora
        •   Spotify
        •   Tidal

        12. Specifications

        GENERAL Denon AVR-X1800H Yamaha RX-A4A
        BrandDenonYamaha
        SeriesAventage
        ModelAVR-X1800HRX-A4A
        TypeA/V ReceiverA/V Receiver
        CountryUSAUSA
        Release Year20242021
        PredecessorDenon AVR-X1700H Yamaha RX-A1070
        AMPLIFIER Denon AVR-X1800H Yamaha RX-A4A
        Channels7.27.2
        Power Output80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)110 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
        Front Wide Channel Support
        Discrete Amplification
        THX™ Certification
        Continuous 6 Ω Rated
        Certified 4 Ω Performance
        Mono Block Power Amplifier Construction
        Bi-amp Capability assignable
        AUDIO FEATURES Denon AVR-X1800H Yamaha RX-A4A
        Surround:AI™
        DACESS Hyperstream DAC ES9007S
        DAC Specs384 kHz/32 Bit
        Maximum Channel Processing7.17.1
        D.D.S.C. HD Digital
        Alpha Processing
        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
        Surround EX
        DTS:X up to 5.1.2
        DTS Neural:X
        DTS Virtual:X
        DTS Neo
        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, DSDMP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
        Music Playback via USBMP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, DSDMP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
        High Resolution Music Playback via USB and/or Network up to 192 kHz up to 384 kHz/32 Bit
        High Resolution Audio Formats via USBApple Lossless, WAV, FLAC, 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
        Jitter Reduction
        DTS Dialogue Control
        Dialog Enhancement
        Dialog Level Adjustment
        Dialog normalization
        Dialogue Lift
        Compressed Music Enhancer
        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
        CINEMA DSP HD3
        DSP Programs24
        SILENT CINEMA / Virtual CINEMA DSP
        Virtual Speakers including surround back
        Independent Subwoofer Outputs
        CALIBRATION Denon AVR-X1800H Yamaha RX-A4A
        Auto Speaker Calibration System with Mic. Audyssey MultEQ XT YPAO sound optimization with R.S.C., Multipoint, 3D, 64-Bit High Precision EQ Calculation, Low Frequency mode and Angle measurement
        Audyssey App Support
        YPAO Volume
        PEQ for SUBDown to 15.6 Hz
        Optimized Bass Redirection
        Bass Sync
        VIDEO FEATURES Denon AVR-X1800H Yamaha RX-A4A
        HDR10
        HDR10+
        Dynamic HDR
        BT.2020 color space
        Dolby Vision
        HLG (Hybrid Log Gamma)
        HDMI Version2.12.1
        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 8K 50/60Hz and 4K 100/120Hz 4:4:4
        Video Signal Upscaling up to 8K 50/60Hz and 4K 100/120Hz 4:4:4 up to 4K 60p 4:4:4
        Analog To HDMI Upconversion
        Component Video Upscaling
        Analog to Analog Video conversion
        isf Certified Calibration Control
        CONNECTIVITY Denon AVR-X1800H Yamaha RX-A4A
        Wi-Fi
        Bluetooth SBC SBC, AAC
        Bluetooth Headphone Transmission
        Works with Amazon Alexa
        Google Assistant
        Chromecast Built-In
        Apple Siri
        Works with SonoS
        HEOS
        DTS Play-Fi
        MHL Input
        DLNA 1.5
        MusicCast
        AirPlay AirPlay 2 AirPlay 2
        Apple Product Connection iPod, iPhone and iPad iPod, iPhone and iPad
        Remote App (iPhone® / iPad® / Android™ phone / tablet)
        InstaPrevue Input Source Prevue
        TERMINALS Denon AVR-X1800H Yamaha RX-A4A
        HDMI Inputs67
        HDMI Outputs13 (2 for MAIN, 1 for ZONE2)
        8K Inputs37
        USB Input1 Front for USB memoryUSB memory, Portable Audio Player
        USB DC Out Port 5 V, 1.5 A
        Optical Inputs22
        Optical Outputs
        Coaxial Inputs11
        RCA Line Inputs23
        RCA Line Outputs
        XLR Line Inputs
        Phono Input
        Multi-Channel Input
        RCA Pre-Outs2.27.2
        XLR Pre-outs
        Composite Video Inputs
        Composite Video Outputs
        S-Video Inputs
        S-Video Outputs
        Component Video Inputs
        Component Video Outputs
        Ethernet
        Ethernet Switch
        PC In
        Front A/V InputsUSBUSB
        Speaker A/B assignable
        Headphone Out6.3 mm (1/4")6.3 mm (1/4")
        Detachable Power Cord
        dockport
        ZONES Denon AVR-X1800H Yamaha RX-A4A
        Number of Zones22
        Powered Zones 2Zone 2
        Zone 2 OutsPre OutRCA Preout
        Zone B Video Output
        Zone GUI
        RS-232C Interface
        +12V Trigger Output2
        Remote (IR) Input/Output1 / 01 / 1
        Party Mode
        MISCELLANEOUS Denon AVR-X1800H Yamaha RX-A4A
        On-Screen Display Hybrid Graphic User InterfaceGraphical User Interface
        GUI Languages3
        SCENESCENE (8 sets)
        Web Control
        IP Control
        Control4 SDDP
        PreAmp Mode
        Display 1 lines FLDHigh-resolution LCD display
        Remote ControllerRC-1257
        Pre-programmed / Learnable / LCD Display / /
        Denon Link HD
        Setup Assistant
        Quick Select plus / Quick Select /
        RADIO Denon AVR-X1800H Yamaha RX-A4A
        Analog Tuner FM/AM FM/AM
        Presets40
        Digital Radio
        Internet Radio TuneIn
        Pandora
        Spotify
        Tidal
        Deezer
        Napster
        SiriusXM
        CONSTRUCTION Denon AVR-X1800H Yamaha RX-A4A
        Front Panelnot Metal
        A.R.T. Wedge
        Speaker Terminals79
        Large Speaker Terminals79
        Color-Coded Speaker Terminals
        Transparent High-Grade Speaker Terminals
        High Grade Audio Components
        Gold plated RCA terminals
        POWER Denon AVR-X1800H Yamaha RX-A4A
        Power SupplyAC 120 V, 60 HzAC 120 V, 60 Hz
        Power Consumption430 W410 W
        No Sound PowerECO On/Off: 29 W/39 W
        Standby Power0.1 W0.4 W
        ECO Mode / Hybrid Standby Function
        Auto Power Standby
        Auto Power off
        PHYSICAL Denon AVR-X1800H Yamaha RX-A4A
        Dimensions (W x H x D)434 mm x 151 mm x 339 mm (with antenna: 434 mm x 215 mm x 339 mm)
        17 1/8" x 6" x 13 3/8" (with antenna: 17 1/8" x 8 1/2" x 13 3/8")        		435 mm x 191 mm x 442 mm (with antenna: 435 mm x 270 mm x 442 mm)
        17-1/8" x 7-1/2" x 17-3/8" (with antenna up: 17-1/8" x 10-5/8" x 17-3/8")
        Dimensions of Package (W x H x D)523 mm x 232 mm x 435 mm
        20.6" x 9.1" x 17.1"
        Weight8.6 kg (19 lbs)16.2 kg (35.7 lbs)
        Weight of Package23.4 lbs
        SPECIFICATIONS Denon AVR-X1800H Yamaha RX-A4A
        Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)80 W (0.08% THD)110 W (0.06% THD)
        Power Output (8 Ω, 1 kHz, 2 channel Driven, FTC)120 W (0.9% THD)
        Rated Power Output (8 Ω, 1 kHz, 1 channel Driven)135 W (0.9% THD)
        Maximum Effective Output Power (8 Ω, 1 kHz, 1 channel Driven, JEITA)165 W (10% THD)
        Power Output (6 Ω, 1 kHz, 2 channel driven, FTC)120 W (0.7% THD)
        Power Output (6 Ω, 1 kHz, 1 channel driven, FTC)140 W (0.9% THD)
        Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA or IEC)175 W (10% THD)170 W (10% THD)
        Rated Power Output (6 Ω, 1 kHz, 1 channel driven, IEC)145 W (1% THD)
        Rated Power Output (4 Ω, 1 kHz, 1 channel Driven)170 W (0.9% THD, Front)
        THD0.05% (AUDIO 2 etc. to Speaker Out, 20 Hz - 20 kHz, 55 W, 8 Ω)
        THD (Phono)0.04% (Phono to PRE OUT, 1 kHz, 1 V)
        Phono Distortion0.03% (1 kHz, 3 V)
        Damping Factor120 (Front, 1 kHz, 8 Ω)
        Input Sensitivity and Impedance (Line)200 mV/47 kΩ220 mV/47 kΩ
        Input Sensitivity and Impedance (Phono MM)2.5 mV3.7 mV/47 kΩ
        Maximum Input Sensitivity (Line)2.4 V (1 kHz, 0.5% THD)
        Maximum Input Sensitivity (Phono)45 mV (1 kHz, 0.5% THD)
        Rated Preout Level and Impedance1.0 V/470 Ω
        Maximum Preout Level and Impedance2.0 V
        S/N Ratio (Line, IHF-A)98 dB110 dB
        S/N Ratio (Phono MM, IHF-A)74 dB95 dB
        Phono RIAA Deviation±1 dB (20-20 kHz)0±0.5 dB (20 Hz - 20 kHz)
        Frequency Response (Analog In)+1/-3 dB (10 Hz to 100 kHz, Direct mode)+0/-3 dB (AUDIO 2 etc. to Front, Pure Direct, 10 Hz to 100 kHz)
        Residual noise (IHF-A Network)150 µV (Speaker Out)
        Channel Separation at 1 kHz/10 kHz (LINE)75 dB/61 dB
        Channel Separation at 1 kHz/10 kHz (Phono)75 dB/60 dB
        DSD Sampling Rates via HDMI2.8 MHz
        DSD Sampling Rates via USB5.6 MHz, 2.8 MHz11.2 MHz, 5.6 MHz, 2.8 MHz
        Ethernet Standard100BASE-TX10BASE-T/100BASE-TX
        Wi-Fi StandardIEEE 802.11 a/b/g/n/acIEEE 802.11 a/b/g/n/ac
        Wi-Fi Terminal Frequency5 GHz, 2.4 GHz2.4 GHz, 5 GHz
        Bluetooth Version5․04․2
        Bluetooth Frequency2.4 GHz2.4 GHz
        USB TerminalUSB2.0 5V, 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: 2.8 µV (20.2 dBf)Mono: 3 µV (20.8 dBf)
        FM Effective Sensitivity1.2 µV (12.8 dBf)
        FM S/N RatioMono/Stereo: 70 dB/67 dBMono/Stereo: 69 dB/68 dB
        FM Harmonic Distortion (IHF, 1 kHz)Mono/Stereo: 0.7%/1.0%Mono/Stereo: 0.5%/0.6%
        AM Frequency520 kHz - 1710 kHz530 kHz - 1710 kHz
        AM Effective Sensitivity18 µV
        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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