amaha RX-A4A is an AVENTAGE 7.2-channel receiver with SURROUND:AI™, 7-in/3-out HDMI™, state-of-the-art QCS407.
- Powerful 7.2-channel surround sound with Zone2
- Wi-Fi, Bluetooth®, AirPlay 2, Spotify Connect and MusicCast multi-room audio
- Surround:AI automatically optimizes the surround effect in real time
- Dolby Atmos® and DTS:X® with CINEMA DSP HD3
- YPAO™-R.S.C. with multi-point measurement and precision EQ
- 7 in/3 out HDMI™, 8K/60 Hz, 4K/120 Hz
- Dedicated gaming functions (ALLM, VRR, QMS, QFT) via firmware update
- ESS SABRE ES9007S Premier audio DAC for high conversion performance
- Voice control with Alexa and Google Assistant compatible devices. *Availability varies by region
SURROUND:AI™
Artificial intelligence technology built into the DSP unit analyzes the scene of entertainment content and creates the optimal surround effect for even more outstanding performance. AI instantly analyzes scenes by distinguishing different sound elements, such as dialogue, background music, ambient sounds and sound effects, to automatically optimize the surround effect in real time. It’s like having a Yamaha sound engineer in the house adjusting the live sound to give you the best listening experience at all times. Artificial intelligence technology creates an immersive sense of realism that surpasses the usual sound field effects, giving you the best possible entertainment experience. Qualcomm® QCS407 with high-precision 64-bit processing ensures extremely clear and accurate surround sound.
Cinema DSP H3D for movies, music and video games
Yamaha’s flagship 3D sound field reproduction technology was developed by combining actually measured sound field data with state-of-the-art digital signal processing technology. The revamped CINEMA DSP HD3 uses new signal processing algorithms and enhances the theatrical effect of sound, accurately reproducing a new dimension of realism for an immersive, boundless sound field. Leveraging front, center and surround speakers to simulate a virtual rear speaker, CINEMA DSP HD3 can reproduce up to 11.1 channels* from a 7.1-channel speaker configuration.
*Requires connection to a front presence speaker.
Dolby Atoms® with Height Virtualizer
For all those who do not have a system with ceiling speakers or upward-emitting speakers, Dolby Atmos technology with Height Virtualization simulates the Atmos “ceiling” experience by exploiting the front channels. A configuration of up to five speakers allows the effects of two ceiling channels to be reproduced, while with seven speakers it will be possible to simulate the effects of four ceiling speakers.
Perceive all dimensions with Dolby Atmos. Configure a 5.1-channel surround system with two additional ceiling speakers or two Dolby Atmos height speakers to enjoy incredible, immersive overhead effects – Dolby Surround upmixer also available for all other content.
DTS:X®
Immersive audio in DTS:X format places sounds naturally in the environment for multi-dimensional, lifelike audio. Integrated DTS Neural:X™ spatial remapping processing delivers enhanced immersion and height realism for all movies.
Compressed Music Enhancer
In compressed digital music such as MP3s, the frequency response is reduced. Yamaha’s Compressed Music Enhancer technology uses sophisticated digital signal processing to reconstruct lost frequencies using algorithms that allow the music to be heard with the original quality.
HIGH QUALITY COMPONENTS
Advantages of a high response rate amplifier
The new circuit, which offers more than double the response speed, ensures accurate signal transmission, especially effective for high-resolution audio signal. High response speed amplifiers can cause some instability in signal transmission-the new circuit designed by Yamaha ensures stable signal transmission even at high response speed.
High-quality digital components
Qualcomm® QCS407, designed to deliver superior audio performance, supports Dolby Atmos and DTS:X technologies for an immersive home audio experience and a dedicated high-performance audio DSP.
With ESS Technology’s SABRE ES9007S Premier integrated audio DAC offering excellent signal-to-noise ratio and up to 120 dB dynamic range, this AV receiver provides professional-quality digital audio reproduction.
CRAFTSMANSHIP
Foot with anti-resonance technology
Antiresonance technology (A.R.T.), which consists of a fifth support foot placed in the center of the unit, more effectively dampens vibrations generated by the transformer, transistors and heatsinks, as well as those transmitted by the sound emitted by the speakers, ensuring dynamic audio and more accurate and detailed reproduction.
Newly designed mechanical structure
The internal layout of components, arranged in an extremely logical and symmetrical manner, and the totally revamped circuit boards are designed to ensure the shortest signal path on each board. The new H-shaped cross-shaped chassis improves the strength of the receiver body and sound stability, promoting clearer, crisper and more transparent reproduction. In addition, the redesigned mechanical structure helps prevent the spread of vibration from the transformer to the amplifier circuit. Noise is reduced to improve sound clarity.
MOVIES AND VIDEO GAMES MORE COMPELLING THAN EVER BEFORE
HDR10+*
HDR10+ processes the dynamic range (the ratio of light to dark) of video content on a scene-by-scene (or even frame-by-frame) basis using metadata that informs the brightness and black level characteristics of the scene, so that the most significant details are preserved. This allows screens to reproduce images that are more realistic and true to the director’s intentions.
*This function requires a FW update.
8K/60Hz, 4k/120Hz*
Supports 8K/4K resolutions and higher refresh rates with a single cable optimized to ensure seamless integration into the HDMI ecosystem. 8K ensures a highly immersive viewing experience, with twice the vertical and horizontal resolution compared to 4K and 4 times the number of pixels; combined with a 60Hz refresh rate, it ensures smooth and detailed viewing of action-packed content. With 4K/120Hz, ultra-fast UHD images are sharp and incredibly detailed-a significant step forward for sports, action movies, high-performance video games, and virtual reality.
*This function requires a FW update.
Dedicated gaming functions (ALLM, VRR, QMS, QFT)*
Gaming- and media-optimized features ensure optimal images and transitions for video games, movies, and videos. These include the Auto Low Latency Mode (ALLM), which automatically applies the ideal latency level to ensure smooth playback and interaction without lag and interruptions, the Variable Refresh Rate (VRR) feature, which reduces or eliminates lag, stuttering and frame tearing for smoother and more detailed gaming sessions, Quick Media Switching (QMS) for movies and videos, which eliminates the black screen problem due to delay in displaying content, and Quick Frame Transport (QFT), which reduces latency for smoother, lag-free gaming sessions and real-time interactive virtual reality experiences.
*This function requires a FW update.
DESIGNED FOR YOUR SPACE
YPAO™ – R.S.C. (with 3D, multi-point measurement and 64-bit precision EQ)
YPAO-R.S.C. (Reflected Sound Control) analyzes room acoustics with the included YPAO microphone, adjusting the system to ensure extraordinary sound in any room. It uses R.S.C. technology to correct initial reflections and achieve professional-grade surround sound quality. YPAO 3D ensures automatic optimization of audio parameters that maximizes the 3D sound field efficiency of SURROUND:AI, Dolby Atmos® and DTS:X®. High-precision 64-bit EQ calculation makes room acoustics sound extremely natural.
Specifications
- Amplifier Section Channels 7.2
- 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 Yes
- Surround Sound Processing Surround:AI Yes
- CINEMA DSP Yes (HD3)
- DSP Programs 24
- Dialog Level Adjustment Yes
- Virtual Presence Speaker Yes
- Virtual Surround Back Speaker Yes
- Dialogue Lift Yes
- SILENT CINEMA / Virtual CINEMA DSP Yes
- Dolby Atmos Yes
- Dolby Atmos Height Virturalizer Yes
- Dolby TrueHD Yes
- Dolby Digital Plus Yes
- Dolby Surround Yes
- DTS:X Yes
- DTS-HD Master Audio Yes
- Auro 3D N/A
- 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 Yes
- Compressed Music Enhancer Yes
- High-resolution Music Enhancer Yes
- YPAO multi-point measurement Yes with R.S.C. (Reflected Sound Control) , 3D, 64-bit High Precision EQ Calculation
- YPAO Volume Yes
- DRC (Dynamic Range Control) Adaptive Yes
- Initial Volume & Maximum Volume Setting Yes
- A.R.T. Wedge Yes
- Bi-amp capability Yes
- Audio delay for Lip Sync adjustment Yes (0-500 ms)
- DA Converter 384 kHz / 32-bit ESS Hyperstream DAC ES9007S
- Video Features HDMI eARC Yes
- HDMI Audio Return Channel Yes
- HDMI Pass-through 8K60AB, 4K120AB (via future update)
- HDMI Up-scaling Yes, up to 8K (via firmware update)
- HDMI Up-conversion N/A
- Dolby Vision Yes
- HDR 10+ Yes (via firmware update)
- VRR/ALLM/QMS/QFT Yes (via firmware update)
- Video adjustment N/A
- Connectivity MusicCast Surround Yes
- HDMI 7 / 3 inputs/outputs (HDMI2.1 / HDCP2.3)
- HDMI CEC Yes
- USB Input Yes
- Network Port Yes
- Wi-Fi Yes (2.4 / 5 GHz)
- AirPlay 2 Yes
- Bluetooth Yes (SBC / AAC)
- Front AV Input USB
- Digital Audio Input/Output: Optical 3 / 0
- Digital Audio Input/Output: Coaxial 2 / 0
- Analog Audio Input/Output 6 / 0
- Phono input Yes
- XLR Terminal N/A
- Component Video Input/Output N/A
- Composite Video Input/Output N/A
- Preout 7.2-ch
- Headphone Output 1
- 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 SCENE PLUS (8 sets)
- App Control Yes (iPhone / iPad / Android phone / tablet)
- Web Browser Control Yes
- Remote control Yes
- Zone Control Audio Output Zone 2 Preout / HDMI
- Audio output Zone 3 N/A
- Audio output Zone 4 N/A
- Powered Zone Zone 2
- Zone Video Output HDMI
- Zone B Output N/A
- GUI Zones N/A
- RS-232C interface N/A
- Command pulse outputs +12 V 2
- Remote inputs (IR) 1/1
- Party Mode Yes
- General Standby Power Consumption (IR only) <0.4 W
- Auto Power Standby Yes
- ECO mode Yes
- Dimensions (W x H x D mm) 435 W x 191 H x 442 D mm (with antenna up:435 W x 270 H x 442 D mm)
- Weight 16.2 kg; 35.7 lbs.
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