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Yamaha RX-A4A 7.2ch AV Receiver 135W 8 ohms Dolby Atmos and DTS:X Black

Yamaha RX-A4A 7.2ch AV Receiver 135W 8 ohms Dolby Atmos and DTS:X Black

Model: RXA4A
SKU: 100334766


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Key Features

2 years parts & labour

Key Features
    • Surround:AITM- best surround sound experience. 

    • Dolby Atmos with Height Virtualizer- duplicate the exceptional Atmos experience with forward facing drivers. 

    • DTS:X- fully immersive sound in all your favourite movies. 

    • Newly Designed Mechanical Structure- logically designed and reconstructed circuit boards keep the signal paths on each board as short as possible. 

    • Dynamic and Compelling Design- elegant design and attention to detail provides the best possible visual and acoustic art for you. 

    • Dimensions (W x H x D) 435 W x 191 H x 442 D mm (with antenna up:435 W x 270 H x 442 D mm);17-1/8"W x 7-1/2"H x 17-3/8"D (with antenna up:17-1/8"W x 10-5/8"H x 17-3/8"D)




Yamaha AI technology creates the best surround effect with ultimate impact for you. Built into the DSP, the technology quickly assesses scenes by focusing on clear sound elements such as dialogue, background music, sound effects and ambient sounds, and enhances the surround effect for the best sound live experience. AI technology will create a captivating sense of realism with expressive power better than conventional sound field effects to provide you with the best possible entertainment experience possible. *Qualcomm® QCS407 with 64-bit high precision processing delivers precise surround sound.

Cinema DSP HD3 for Movie, Music and Game

Yamaha’s state of the art 3D sound field playback technology was developed by merging sound field data with the bleeding edge digital signal processing technology. The Cinema DSP HD3 has been reconstructed using new signal processing algorithms which maximise sound affects to give that REAL sound factor. Paired with front, centre and surround speakers to create a real virtual speaker, the CINEMA DSP HD3 playback up to 11.1 channels is possible even with a 7.1 channel speaker configuration.

Dolby Atmos with Height Virtualizer

If you don’t have in-ceiling or upward firing speakers in your system, Dolby Atmos with Height Virtualization technology will duplicate the Atmos experience with forward facing drivers. Experience every dimension in Dolby Atmos. You can enjoy a 5.1 surround speaker system and two additional overhead speakers (or two Dolby Atmos elevation speakers) as this will provide dramatic overhead effects for exceptional audio. *Including Dolby Surround upmixer for legacy content.


DTS:X captivating audio formatting positions sound where it would naturally occur in space, developing realistic, multi-dimensional audio. The included spatial reworking engine of DTS Neural:XTM supplies improved immersion and is the real sound factor in all your favourite movies.

Compressed Music Enhancer

Yamaha’s Compressed Music Enhancer applies advanced digital signal processing by using exclusive algorithms to ensure that music is always clear. When music is encoded into a digitally compressed format such as an MP3, the frequency response suffers which is why Yamaha have developed this technology to provide you with the best sound quality possible.



Advantage of High Slew Rate Amplifier

Yamaha’s newly designed circuit in the RXA4A achieves a high slew rate with stable signal transmission for the quickest and best quality sound. Typically, high slew rate amplifier cause unstable signal transmission which is why Yamaha have focused on and resolved this issue for the RXA4A.

High-Quality Digital Components

Qualcomm® QCS407 is designed to provide a superior audio performance. Whilst supporting Dolby Atmos and DTS:X immersive home audio, the QCS407 will also support dedicated high-performance audio DSP. Including the SABRE ES9007S Premier Audio DAC from ESS Technology, the RXA4A uses this to achieve an incredible signal-to-noise ratio and up to 120 dB of dynamic range. Therefore, this AV receiver produces professional quality digital audio for you to enjoy and experience.



Anti Resonance Technology Wedge

The newly developed Anti Resonance Technology (A.R.T) Wedge is positioned centrally in the front of the chassis unit base. This technology reduces much more vibrations from the power transformer, power transistors and heat sinks, as well as any vibrations that may occur due to the sound from the speakers. This is to enable dynamic sound and concentrated, accurate reproduction.

Newly Designed Mechanical Structure

The exceedingly logical and consistent internal layout of parts and the reconstructed circuit boards are designed to keep the signal paths on each board as short as possible. The modern H-cross frame improves rigidity of the receiver body and sound stability for a more clear and sharp reproduction. The specially redesigned mechanical structure also contributes to avoiding vibration from the transformer to the amplifier circuit. Sound noises are reduced to improve distinctness.




The HDR10+* signals the dynamic range which is the ratio of light to dark of video content on a scene-by-scene or frame-by-frame basis. This function also supplies in a small amount of metadata, the scene characteristics between bright and dark in order for the important details to be maintained. The purpose of this function is to enable displays to reproduce more realistic images to follow the creator’s intentions. *This function is available via FW update.

8K/60Hz, 4k/120Hz*

With a single advanced cable for seamless integration for the HDMI eco-system, 8K/4K resolutions are supported end-to-end and enables a higher refresh rate solution. 8K delivers a very captivating viewing experience with 2x the horizontal and vertical resolution of 4K, and 4x the pixels with a combined 60Hz refresh rate. This allows sharp and smooth viewing of content and high-speed action. The 4K/120Hz enables ultra-fast motion UHD images to be crisp and cutting edge. This means that sports, high-performance gaming, action movies and VR will benefit and become top quality. *This function is available via FW update.

Gaming-dedicated Function (ALLM,VRR,QMS,QFT)

With enhanced gaming and media features, there will be a guaranteed added level of smooth and flawless motion and transitions for movies, gaming and video. These features include Auto Low Latency Mode (ALLM) which allows the ideal latency setting to be applied automatically, and Variable Refresh Rate (VRR) which stops lag, stutter and frame tearing for more flowing and detailed gameplay. Another feature is Quick Media Switching (QMS) which will stop the delay in movies and videos that can result in blank frames before content is displayed. The Quick Frame Transport (QFT) feature will minimize latency for smooth no-lag gaming and real-time interactive virtual reality. *This function is available via FW update.



YPAOTM- R.S.C (with 3D, Multi- Point Measurement and 64- bit High Precision EQ)

YPAO-R.S.C (Reflected Sound Control) assesses the room’s acoustics with the included YPAO microphone to tune your system for the best quality sound. This feature applies R.S.C to correct early reflections for studio- quality surround sound. YPAO 3D supplies automatic sound parameter advancements that maximises the 3D sound field effectiveness of SURROUND:AI, Dolby Atmos and DTS:X. The 64-bit high precision EQ will achieve the most natural room acoustics possible.

Compatible with Wireless Rear Speaker

If you link this AV receiver with the MusicCast 20 or MusicCast 50 wireless streaming speaker, you can enjoy the brilliance of creating a home theatre with wireless surround sound and experience sensational realistic sound with a clean setup. You can now turn your current living room into a unique entertainment environment easily with the RXA4A to fully enjoy music and movies.

Dynamic and Compelling Design

Yamaha’s attention to detail for design and craftmanship produces the best possible visual and acoustic art for you. The spotless chassis construction solidifies the alignment of stability in performance. The elegant design deepens the AVENTAGE distinctiveness and magnifies key acoustic authority. By making use of faithful reflections of tradition and including fresh new design principles, the new adapted AVENTAGE displays engineering at best.

SCENE Buttons with the Ability to Preset Songs and Stations

The RXA4A features four SCENE buttons which you can pre-set for different inputs, alongside a sound field program, HDMI output, Music Enhancer and more. The inputs can be set to specific sources. For example this could be an FM or internet radio station, a USB device, a station on a streaming service, or a song on a PC or NAS (network). When you have set the buttons, all you must do is press one on the main unit or the remote control to power on the receiver. The buttons can be re-set at any time.



Easy Operation by MusicCast App

You can use your smartphone or tablet with the MusicCast Controller app to control the AVR and change settings swiftly and easily. This Controller app operates as a remote control for all your MusicCast- compatible devices and as a full multi-room audio control.

Voice Control (Alexa, Google Assistant)

With the RXA4A, you have the choice of touch or voice control. You can control a single MusicCast product or an entire whole-of-home system easily using Alexa or Google Assistant. You can now hear your home come to life with your voice. *Availability of voice command control via Amazon Alexa and Google Assistant varies by region. *A third party device is required to initiate voice commands.

AV Setup Guide App for Initial Setup

You can use this unique app to receive expert set up assistance for your AV receiver and source devices. It will also guide you through a number of other settings such as speaker connections, power amplifier assignments, TV and source device connections.



Multi-room Audio- MusicCast

You can play all the music you love throughout your home no matter what the format is with

Yamaha’s MusicCast. MusicCast products are designed for the best sound quality possible for you. The choice of format is yours whether it be a vinyl, your TV, AirPlay, Bluetooth or your favourite music streaming services, experience music like never before. *Music streaming service availability varies by region. *Highres formats including Apple Lossless (ALAC) up to 96 kHz, WAV, FLAC and FLAC or AIFF up to 192 kHz are supported.

AirPlay 2

AirPlay 2 enables the ability to stream Apple Music or other streaming services to multiple MusicCast devices in your home. You can control this easily from your iPhone or iPad, or you can link it to a HomePod, and you even have the option to use voice control and ask Siri to help.

Streaming Service

With the built-in music streaming services, you can organize and connect your playlists and tracks from your smart phone or computer to the AV receiver, allowing you to listen to and enjoy all your favourite music. *Music streaming service availability varies by region.


Yamaha’s industry- leading AV receivers feature an Enhanced Audio Return Channel (also known as eARC) which will enable the full potential of your 4K content. eARC provides full- resolution, multi- channel audio formats such as Dolby TrueHD and DTS-HD through your HDMI connection to give you the most real surround sound experience, fully engaging you in your favourite movies and moments.

Zone2 including HDMI

The RXA4A features Zone2 compatible speaker terminals which can send the same (or even different) AV contents playing in the main room into another room. For example, if you have got speakers located in your kitchen or bedroom, you can travel to that room and still listen and enjoy the same or different main room content.


This AV receiver from Yamaha supplies dedicated phono input terminals to allow you to connect a turntable and enjoy music from your vinyl collection.


Information From Manufacturer


AV Receiver


AV Receiver

Amplifier Section



Rated Output Power (1kHz, 1ch driven)

135 W (8 ohms, 0.9% THD)

Rated Output Power (20Hz-20kHz, 2ch driven)

110 W (8 ohms, 0.06% THD)

Maximum Effective Output Power (1kHz, 1ch driven)

165 W (8 ohms, 10% THD)

High Slew Rate Amplifier


Surround Sound Processing




Yes (HD3)

DSP Programs


Dialog Level Adjustment


Virtual Presence Speaker


Virtual Surround Back Speaker


Dialogue Lift




Dolby Atmos


Dolby Atmos Height Virturalizer


Dolby TrueHD


Dolby Digital Plus


Dolby Surround




DTS-HD Master Audio


Auro 3D



Audio Features

File Format

MP3 / WMA / MPEG-4 AAC, ALAC: up to 96 kHz / 24-bit, FLAC: up to 384 kHz / 24-bit, WAV / AIFF: up to 384 kHz / 32-bit, DSD: up to 11.2 MHz

Pure Direct


Compressed Music Enhancer


High-resolution Music Enhancer


YPAO multi-point measurement

Yes with R.S.C. (Reflected Sound Control) , 3D, 64-bit High Precision EQ Calculation and Angle Measurement

YPAO Volume


Adaptive DRC (Dynamic Range Control)


Initial Volume & Maximum Volume Setting


A.R.T. Wedge


Bi-amp capability


Audio Delay

Yes (0-500 ms)

DA Converter

384 kHz / 32-bit ESS Hyperstream DAC ES9007S


Video Features



HDMI Audio Return Channel


HDMI Pass-through

8K60AB, 4K120AB, 40GBPS (via future update)

HDMI Up-scaling

Yes, up to 8K (via firmware update)

HDMI Up-conversion


Dolby Vision


HDR 10+

Yes (via firmware update)


Yes (via firmware update)

Video adjustment




MusicCast Surround


HDMI Input/Output

7 / 3 (HDMI2.1 / HDCP2.3)



USB Input


Network Port



Yes (2.4 / 5 GHz)

AirPlay 2



Yes (SBC / AAC)

Front AV Input


Digital Audio Input/Output: Optical

2 / 0

Digital Audio Input/Output: Coaxial

1 / 0

Analog Audio Input/Output

4 / 0

Phono Input


XLR Terminal


Component Video Input/Output


Composite Video Input/Output




Headphone Output



Tuner Section

FM/AM Tuner

Yes (Availability varies by region.)

DAB Tuner

Yes (Availability varies by region.)


User Interface

On-screen display

Graphical User Interface


SCENE PLUS (8 sets)

App Control

Yes (iPhone / iPad / Android phone / tablet)

Web Browser Control


Remote Control Unit



Zone Control

Zone 2 Audio Output

Preout / HDMI

Zone 3 Audio Output


Zone 4 Audio Output


Powered Zone

Zone 2

Zone Video Output


Zone B Output


Zone GUI


RS-232C Interface


+12V Trigger Output


Remote (IR) Input/Output

1 / 1

Party Mode




Standby Power Consumption (IR only)

<0.4 W

Auto Power Standby


ECO mode


Dimensions (W x H x D)

435 W x 191 H x 442 D mm (with antenna up:435 W x 270 H x 442 D mm);17-1/8"W x 7-1/2"H x 17-3/8"D (with antenna up:17-1/8"W x 10-5/8"H x 17-3/8"D)


16.2 kg; 35.7 lbs.


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