1-on-1 Comparison

Side-by-Side Comparison

Onkyo TX-RZ840

Yamaha RX-V4A

SCORE:
91
SCORE:
78

Highlights

  • 9.2 channels
  • 11.2 channel processing
  • 120 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
  • THX Select™ certified
  • Dolby Atmos, DTS:X capable
  • HDR10, Dolby Vision, 4K Upscaling, 4K Passthrough
  • AirPlay 2, Chromecast
  • Ethernet, Wi-Fi, Bluetooth
  • USB and Phono inputs

Highlights

  • 5.2 channels
  • 5.1 channel processing
  • 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
  • HDMI 2.1
  • HDR10, HDR10+, Dolby Vision, 4K Upscaling, 8K Passthrough
  • AirPlay 2, MusicCast
  • Ethernet, Wi-Fi, Bluetooth
  • USB input

Disclosure: We earn money from the affiliate links to products associated with content in this article.

Content

Overview

Here we are comparing Onkyo TX-RZ840 to Yamaha RX-V4A 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. The Onkyo TX-RZ840 has 9 channel and the Yamaha RX-V4A has 5 channel amplifiers with Onkyo TX-RZ840's being more powerful.


Onkyo TX-RZ840 Yamaha RX-V4A

Onkyo TX-RZ840 was introduced in 2019. It is equipped with 9 channel amplifier with 120 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) power per channel and is capable of 11.2 maximum channel processing. It supports Dolby Atmos and DTS:X, passes 4K/60Hz and upscales 1080p to 4K video signal.

Yamaha RX-V4A was introduced in 2020. It is equipped with 5 channel amplifier with 80 W (8 Ω, 20 Hz - 20 kHz and 2 channel driven) power per channel and is capable of 5.1 maximum channel processing. It , passes 8K/60Hz and 4K/120Hz and upscales up to 4K 60p 4:4:4 video signal.

We evaluated the a/v receiver and gave 91 overall score out of 100. Our ranking system is based on the amplifier specifications, audio and video features, connectivity, multizone capabilities, radio and many other details.

We evaluated the a/v receiver and gave 78 overall score out of 100. Our ranking system is based on the amplifier specifications, audio and video features, connectivity, multizone capabilities, radio and many other details.

AMPLIFIER
93
VIDEO FEATURES
95
AUDIO FEATURES
91
CONNECTIVITY
88
MULTIZONE
91
MISCELLANEOUS
72
RADIO
92
OVERALL
91

AMPLIFIER
78
VIDEO FEATURES
99
AUDIO FEATURES
69
CONNECTIVITY
82
MULTIZONE
55
MISCELLANEOUS
47
RADIO
97
OVERALL
78

Advantage of Onkyo TX-RZ840

This section shows those features and specifications which are the reason to choose Onkyo TX-RZ840 over Yamaha RX-V4A.

Onkyo TX-RZ840 has more channels, more power per channel, more channel processing, more zones and bigger power supply. It supports Dolby Atmos, DTS:X, IMAX Enhanced and SONOS. It has DTS Dialog Control and analog pre-outs.

Onkyo TX-RZ840 vs Yamaha RX-V4A
More Channels 9.2 vs 5.2
THX™ Certification Select™ (previously known as Select2) vs
Certified 4 Ω Performance vs
More Channel Processing 11.2 vs 5.1
Dolby Atmos vs
Dolby Atmos Height Virtualization vs
Dolby Surround Upmixer vs
DTS:X vs
DTS Neural:X vs
DTS Express vs
DTS-ES vs
IMAX Enhanced vs
Music Playback via USB FLAC, WAV, Apple Lossless, WMA, MP3, DSD, AIFF, AAC, Dolby TrueHD vs MP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
High Resolution Audio Formats via USB FLAC, WAV, Apple Lossless, DSD, AIFF, AAC, Dolby TrueHD vs Apple Lossless, WAV, FLAC, AIFF, DSD
DTS Dialog Control vs
Dialog Normalization vs
Independent Subwoofer Outputs vs
Analog To HDMI Upconversion Component**, Composite vs
FlareConnect vs
Chromecast Built-In vs
DTS Play-Fi via Onkyo Music Control app vs
Works with SONOS vs
More HDMI Inputs 7 (1 front) vs 4
More HDMI Outputs 2 (1 Main, 1 Sub/Zone2) vs 1
More RCA Line Inputs 6 vs 3
More Optical Inputs 1 vs 1
More Composite Video Inputs 2 vs
More Component Video Inputs 1 vs
More RCA Pre-Outs 11.2 (barter to Zone 3 Pre/Line Out) vs 0.2
Front A/V Inputs HDMI vs USB
More Zones 3 vs 1
RS-232C Interface vs
+12V Trigger Output 1 (MAIN, 100 mA) vs
Remote (IR) Input/Output 1 / 0 vs 0 / 0
Detachable Power Cord vs
More Speaker Terminals 9 vs 5
More Large Speaker Terminals 9 vs 5
Bigger Power Supply 850 W vs 260 W
Longer Warranty 3 Years vs 2 Years
Higher Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC) 120 W (0.08% THD) vs 80 W (0.06% THD)
Higher Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA) 250 W (10% THD) vs 145 W (10% THD)

Advantage of Yamaha RX-V4A

This section shows those features and specifications which are the reason to choose Yamaha RX-V4A over Onkyo TX-RZ840.

Yamaha RX-V4A has lower total harmonic distortion, higher signal to noise ratio and higher wi-fi standard. It supports Amazon Alexa, Napster and SiriusXM.

Onkyo TX-RZ840 vs Yamaha RX-V4A
Dolby Pro Logic vs PLII
DTS Neo vs Neo:6
Higher Resolution Music Playback via USB up to 192 kHz vs up to 192 kHz/32 Bit
Enhanced Audio Return Channel (eARC) vs
HDR10+ vs
QMS vs
Auto Low Latency Mode Pass-through vs
VRR vs
QFT vs
Video Signal Passthrough up to 4K/60p (RGB/YCbCr4:4:4) vs up to 8K 50/60Hz and 4K 100/120Hz 4:4:4
Video Signal Upscaling 1080p to 4K vs up to 4K 60p 4:4:4
Works with Amazon Alexa vs
More 8K Inputs vs 4
Napster vs
SiriusXM Internet Radio vs
Lower THD 0.08% (20 Hz - 20 kHz, Half power) vs 0.04% (AUDIO 3 etc. to Front, Pure Direct, 20 Hz - 20 kHz, 40 W, 8 Ω)
Higher S/N Ratio (Line, IHF-A) 106 dB vs 110 dB
Wi-Fi Standard IEEE 802.11 a/b/g/n vs IEEE 802.11 a/b/g/n/ac

Common Strengths and Weaknesses

Here we list common strengths and weaknesses of both receivers.

STRENGTHS
  DSD via HDMI
  Auto Speaker Calibration System with Mic.
  New HDCP Version
  HDR10
  Dolby Vision
  4K or 8K Video Passthrough
  4K or 8K Signal Upscaling
  Ethernet
  Wi-Fi
  Bluetooth
  USB Input
  Zones
  Analog Tuner
  Pandora
  Spotify
  Tidal
  New Bluetooth Version
WEAKNESSES
  No Front Wide Channel Support
  No Auro 3D with Auro-Matic Upmixer

Audio Section

Amplifier

Onkyo TX-RZ840 Yamaha RX-V4A

9 channel Amplifier: Onkyo TX-RZ840 features 9 channel power amplifier. It is rated at 120 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) and is able to drive 4 ohm speakers.

5 channel Amplifier: Yamaha RX-V4A features 5 channel power amplifier. It is rated at 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven).

  • Dynamic Audio Amplification: Onkyo TX-RZ840 features Dynamic Audio Amplification which is Onkyo’s amplification philosophy that focuses on capturing the energy and dynamism contained in the audio signal and reproducing it without loss. Audio signals are not static like a test tone, but rather a countless collection of constantly moving waves. While static measurements such as S/N ratio and Total Harmonic Distortion are important, Onkyo believes that excellent dynamic and transient response is the key to emotionally involving sound. Dynamism - the “life” in music - is achieved when the amp can respond to changes in the signal instantaneously, so notes start and stop naturally and the nuances in attack, decay, sustain, and release are voiced with conviction. Onkyo home theater receivers represent the culmination of almost 70 years’ experience in amplifier design. The unique elements of their amplification system comprise high-current, low-impedance architecture to accurately control large speaker cones while enabling instantaneous response to dynamic changes, and discrete wide-range amplifier circuit topology to eliminate phase shift for clear and accurate audio imaging.

THX Select™ (previously known as Select2) certification

Onkyo TX-RZ840 is THX Select™ (previously known as Select2) certified. This means that it is for medium sized rooms, up to 2,000 cubic feet in size, with a 10-12 foot viewing distance from the screen.

  • THX™ Certification: THX™ Certification offers optimal performance, superior quality and seamless integration. THX works with partners from the ground up, so that certified products deliver professional quality audio-visual experiences right out of the box. They only certify the very best products with uncompromised quality, performance and consistency. They ensure that THX certified devices play well with lower performing devices and components. THX listening modes make the receiver to have one speaker set up for movies, music and games. They are tested for power output, bass management, signal-to-noise ratio and feature THX Loudness Plus, Boundary Gain Compensation, Timbre Matching and RE-EQ.
  • Power Output: Power output is tested to ensure the receiver accurately plays source material at THX Reference Level in every input and mode and at every sampling rate for all possible playback combinations selected by the listener.
  • Frequency Response: THX has strict requirements for frequency response to ensure that you hear all the details in high-resolution tracks, ensures dialog in movies, and vocals in music are clear while maintaining deep, impactful bass output that doesn’t overpower the listening experience.
  • Signal-to-Noise Ratio: THX tests the signal-to-noise ratio to ensure the unit is designed to have low noise performance with very little to no audible hiss from the speakers.
  • Bass Management: THX requires an 80Hz crossover point in the setup menu to ensure proper bass management in every THX Certified AVR. This setting confirms that the subwoofer handles low frequencies, freeing up the loudspeakers to handle mids and highs.
  • THX Loudness Plus™: THX Loudness Plus™ is a volume control technology featured in THX Certified Dominus, THX Certified Ultra and THX Certified Select AV Receivers, and preamplifiers that automatically adjusts the front-to-back speaker level relationship as you turn the volume down. With THX Loudness Plus, home theater audiences can now experience the rich details of surround sound at any volume level.
  • Boundary Gain Compensation: Sitting near a wall may result in increased acoustic levels at the lower frequencies. BGC corrects the way low frequency sound is perceived when seated near a wall. This results in a more accurate bass response.
  • Timbre Matching: Your ears hear different tonal qualities in sounds coming from different directions. Timbre Matching restores the frequency balance between your front and surround speakers ensuring seamless and smooth panning between the front to back of the room.
  • RE-EQ: Many movie soundtracks are mixed in studios for playback in large cinema auditoriums with an array of speakers. When played on home systems, they may appear abrasive and edgy. Re-EQ establishes a more accurate tonal balance when enjoying movies in your home.

Speaker Configurations

Onkyo TX-RZ840's and Yamaha RX-V4A's amplifiers can be assigned for different speaker configurations.

  • Dolby Atmos Configurations: The following speaker configurations are supported for Dolby Atmos:
  • Onkyo TX-RZ840: 5.2.2, 5.2.4, 7.2.2 with internal amplifier and 7.2.4 with addition of external 2 channel amplifier.
  • Yamaha RX-V4A: Not supported.
  • DTS:X Configurations: The following speaker configurations are supported for DTS:X:
  • Onkyo TX-RZ840: The speaker configurations for DTS:X are the same as for Dolby Atmos - 5.2.2, 5.2.4, 7.2.2 with internal amplifier and 7.2.4 with addition of external 2 channel amplifier.
  • Yamaha RX-V4A: Not supported.
  • Configurations without height channels: There are also other speaker configurations available which do not include height channels:
  • Onkyo TX-RZ840: 5.2, 7.2 with internal amplifier.
  • Yamaha RX-V4A: 5.2 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.

  • Dolby Atmos

    Onkyo TX-RZ840 supports Dolby Atmos. It is a cinematic audio format in which sounds exist as individual entities, called audio objects. In Dolby Atmos, any sound can exist as an independent audio object, free of channel restrictions. They can be precisely placed and moved anywhere in your room, including overhead, to flow above and around you in three-dimensional space. Through the use of audio objects, overhead sound, and all the richness, clarity, and power of Dolby sound, Dolby Atmos turns your room into an amazing place for entertainment. The format supports up to 128 simultaneous independent audio objects in a mix for rich, realistic, and breathtaking sound. It recreates the director's original concept through descriptive metadata to provide customized playback for home theater and delivers sounds above you through overhead speakers, special upward-firing Dolby Atmos speakers, or a Dolby Atmos enabled sound bar.

    • Dolby Surround Upmixer: Onkyo TX-RZ840 supports 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: Onkyo TX-RZ840 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

    Onkyo TX-RZ840 supports DTS:X. A technique used in DTS:X is similar to the one used in Dolby Atmos. Instead of a fixed number of channels, DTS:X defines object locations from the listener in polar coordinates. An a/v receiver then dynamically renders sound according to the current speaker configuration. The speaker layout employed by DTS:X is the sum of Dolby Atmos and Auro-3D. It has standard 7.1 channel base layer, a 5 channel height layer above the base layer on the front and side walls, and 3 rows of speakers on the ceiling.

    • DTS Neural:X: Onkyo TX-RZ840 supports DTS Neural:X which is an advanced upmixer that can take non DTS:X content and upmix it to the DTS:X speaker layout. It has replaced the DTS Neo family with improved flexibility.
    • DTS Dialog Control: Onkyo TX-RZ840 supports DTS Dialog Control. This function adjusts the dialog levels during playback of the DTS:X stream. It allows you to separately increase the dialog levels in contrast with the background sound and hear dialog easily even under noisy circumstances.

    Enhanced Audio Return Channel (eARC)

    Yamaha RX-V4A supports Audio Return Channel (ARC) feature 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.



    Sound Processing

    • Compressed Music Enhancer: Onkyo TX-RZ840 and Yamaha RX-V4A feature Compressed Music Enhancer which enhances the quality of the music files with lossy compression.
    • Advanced Music Optimizer: Compressed music enhancement in Onkyo TX-RZ840 is done by Onkyo’s Advanced Music Optimizer. While MP3 or AAC files may sound fine through the headphones of your portable digital player, the limitations of these files can be exposed when played back through a quality home entertainment system. This is because a significant amount of high-frequency bit information is lost during the file-compression process. To counter this, Onkyo has designed the Advanced Music Optimizer to compensate for lost bit information and improve the quality of compressed audio signals. This results in a clearer and more expansive sound. Also included in this technology is a loudness correction feature that further improves the audio character of compressed files.

    Room Calibration

    Onkyo TX-RZ840 comes with AccuEQ Advance with AccuReflex™ and Yamaha RX-V4A comes with YPAO room correction system.

    • YPAO: The Yamaha Parametric room Acoustic Optimizer (YPAO) function detects speaker connections, measures the distances from them to your listening position(s), and then automatically optimizes the speaker settings, such as volume balance and acoustic parameters, to suit your room.
    • AccuEQ: First, AccuEQ detects the presence of speakers and evaluates the impedance of each. Next, it pinpoints their distance relative to the main listening position using the mic and sets suitable sound-pressure levels. Then it selects the optimal crossover frequency so that deeper bass rolls smoothly off to the subwoofer. Finally, AccuEQ performs frequency response equalization based on room-acoustic and speaker data collected via microphone. The sound-field is now tailored around the listening position, resulting in a more immersive and realistic in-film experience.

Video Section

HDMI

Onkyo TX-RZ840 comes with 7 HDMI inputs. It has 2 outputs - 1 Main and 1 Sub/Zone2.

Yamaha RX-V4A comes with 4 HDMI 2.1 inputs with 8K support. It has 1 output.

  • 4K/60Hz Passthrough on Onkyo TX-RZ840: All inputs pass up to 4K/60p (RGB/YCbCr4:4:4) video signal.
    8K/60Hz and 4K/120Hz Passthrough on Yamaha RX-V4A: All inputs pass up to 8K 50/60Hz and 4K 100/120Hz 4:4:4 video signal.
  • 4K Upscaling on Onkyo TX-RZ840: It can upscale 1080p to 4K from HDMI and analog sources.
    4K Upscaling on Yamaha RX-V4A: It can upscale up to 4K 60p 4:4:4 from HDMI sources.
  • Analog To HDMI Upconversion: Onkyo TX-RZ840 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 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-V4A only).
  • 3D Ready: Both receivers are able to pass 3D video through HDMI.

HDR (High Dynamic Range)

Onkyo TX-RZ840 supports HDR10, Dolby Vision and Hybrid Log-Gamma.

Yamaha RX-V4A 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.

  • HDR10: HDR10 uses the wide-gamut Rec. 2020 color space. It sends static metadata via video stream to the TV which calibrates its screen brightness and color according to that. HDR10 supports 10-bit color which corresponds to 1024 shades of the primary RGB colors. It is technically limited to a maximum of 10,000 nits peak brightness, however common HDR10 contents are mastered with peak brightness from 1,000 to 4,000 nits.
  • HDR10+: HDR10+ is an HDR video technology that adds dynamic metadata to HDR10 source files. The dynamic metadata are used to adjust brightness levels on a scene-by-scene or even frame-by-frame basis. HDR10+ supports maximum of 10,000 nits peak brightness and 10-bit or more (up to 16-bit) color bit depth. It uses Samsung's dynamic metadata defined in SMPTE ST 2094-40.
  • Dolby Vision: Dolby Vision is a set of technologies developed by Dolby Laboratories for high dynamic range (HDR) video. It covers content creation, distribution, and playback. Like HDR10+, it includes dynamic metadata that are used to adjust and optimize each frame of the HDR video to the consumer display's capabilities in a way specified by the content creator. Dolby Vision allows for a maximum resolution of 8K up to 12-bit color depth, maximum peak brightness of 10,000 nits and a color gamut up to Rec. 2020. It uses Dolby's proprietary dynamic metadata defined in SMPTE ST 2094-10.
  • Hybrid Log-Gamma (HLG): The Hybrid Log-Gamma (HLG) is a transfer function developed mainly for HDR live video feed and over-the-air broadcasts. It is an HDR format that uses BT.2020 color primaries and a bitdepth of 10-bit. It is backward compatible with the transfer function of SDR and is designed to be better-suited for television broadcasting, where the metadata required for other HDR formats is not backward compatible with non-HDR displays. HLG defines a non-linear optical-electro transfer function, in which the lower half of the signal values use a gamma curve and the upper half of the signal values use a logarithmic curve.

IMAX Enhanced

Onkyo TX-RZ840 is IMAX Enhanced certified. To qualify for IMAX Enhanced certification, 4K HDR televisions, projectors, sound bars, a/v receivers, loudspeakers, powered subwoofers and other premium home entertainment devices must meet carefully prescribed performance requirements established by IMAX, DTS and Hollywood's leading experts.

  • What makes an IMAX Enhanced A/V receiver different from an A/V receiver with DTS:X technology? DTS:X technology is commonly found in most multi-channel A/V receivers on the market today. All IMAX Enhanced A/V receivers include DTS:X technology and deliver additional features, such as auto-sensing of IMAX Enhanced content, via IMAX Mode. IMAX Mode indicates that your A/V receiver supports fully immersive IMAX signature sound.
  • IMAX Enhanced Content: IMAX Enhanced studio partners have announced IMAX Enhanced versions of movies that exclusively feature IMAX's signature picture, sound and scale.
  • Picture: Stunning, ultra-vivid 4K HDR picture that utilizes the newest, proprietary Digital Media Remastering technology (DMR) developed by IMAX. DMR accurately reduces noise and grain under the filmmaker’s guidance to best optimize the content for a much higher-quality, higher-brightness display. Without this technology, high-dynamic range content can actually look worse than what was originally seen and intended by the filmmaker.
  • Sound: IMAX and DTS have partnered with award-winning Hollywood sound mixers leveraging DTS:X codec technology integrated in home audio equipment and select televisions to deliver an IMAX signature sound experience with deeper bass and more dynamic range.
  • Scale: Select IMAX Enhanced titles that were shot with IMAX-certified cameras or specially formatted for IMAX theatres feature its exclusive expanded aspect ratio, enabling viewers to see the full scale and scope of the picture on 4K HDR TVs.
  • Streaming Services: IMAX Enhanced is now available on the world’s biggest streaming services, including Disney+, BRAVIA CORE, Tencent, iQiyi and more.

Gaming Features

Yamaha RX-V4A supports Auto Low Latency Mode (ALLM), Variable Refresh Rate (VRR) and Quick Frame Transport (QFT) for lag-free and smooth gaming.

  • Auto Low Latency Mode (ALLM): Auto Low Latency Mode enables the ideal latency setting to automatically be set allowing for smooth, lag-free and uninterrupted viewing and interactivity. When the receiver detects a gaming signal it will enter ALLM. The signal will also be sent to the TV causing it to automatically switch to a low-latency, low-lag mode for gaming. Some functions will not be available on the receiver and TV during ALLM.
  • Variable Refresh Rate (VRR): VRR enables a gaming source such as a console or computer to deliver video frames as fast as it can, which in many cases is slower than the normal static refresh rate. It allows the TV to adapt to certain frame rate which reduces or eliminates lag, judder and frame tearing for more fluid and better detailed gameplay.
  • Quick Frame Transport (QFT): QFT reduces latency for smoother no-lag gaming, and real-time interactive virtual reality. It transports each frame at a higher rate to decrease display latency, which is the amount of time between a frame being ready for transport in the GPU and that frame being completely displayed.

Inputs and Outputs

Audio

  • Analog Pre-Outs: Onkyo TX-RZ840 has 11.2 preamplifier outputs which allows you to connect the receiver to the external power amplifier. 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, Onkyo TX-RZ840 has 11 channel processing but has only 9 channel amplifier, so it needs external amplifier connected to the analog pre-outs in order to reach its maximum speaker configuration.
  • Analog Line Inputs: There are 6 pair of line inputs on Onkyo TX-RZ840 and 3 pair of line inputs on Yamaha RX-V4A for connecting sources with analog outputs.
  • Digital Inputs and Outputs: 1 optical input, 1 optical output and 1 coaxial input are available on Onkyo TX-RZ840 and 0 optical input, 1 optical output and 1 coaxial input are available on Yamaha RX-V4A 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:
  • Onkyo TX-RZ840
    Inputs:
    7 (1 front)   Outputs: 2 (1 Main, 1 Sub/Zone2)
    8K Inputs: 0.
  • Yamaha RX-V4A
    Inputs:
    4   Outputs: 1
    8K Inputs: 4.
  • Composite Video: Connect you VCR, Laserdisc player and other old video equipment with composite video cables.
  • Onkyo TX-RZ840
    Inputs:
    2   Outputs: 0.
  • Yamaha RX-V4A
    Inputs:
    0   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.
  • Onkyo TX-RZ840 supports up to 480i/576i resolution on Component video connectors. resolution on Component video connectors.
  • Onkyo TX-RZ840
    Inputs:
    1   Outputs: 0.
  • Yamaha RX-V4A
    Inputs:
    0   Outputs: 0.

Front A/V Inputs

  • Onkyo TX-RZ840: HDMI
  • Yamaha RX-V4A: USB

Onkyo TX-RZ840

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Yamaha RX-V4A

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Specifications

And in the end let us list all the available specifications of the receivers side-by-side.

BASICS Onkyo TX-RZ840 Yamaha RX-V4A
BrandOnkyoYamaha
ModelTX-RZ840RX-V4A
TypeA/V ReceiverA/V Receiver
CountryNorth AmericaUSA
Release Year20192020
AMPLIFIER Onkyo TX-RZ840 Yamaha RX-V4A
Channels9.25.2
Front Wide Channel Support
Dynamic Audio Amplification
Non-Phase Shift Amplifier
VLSC (Vector Linear Shaping Circuitry) Front L/R Channels
THX™ Certification Select™ (previously known as Select2)
Continuous 6 Ω Rated
Certified 4 Ω Performance
Discrete Output Stage Circuitry
Independent Block Construction (Amp/Preprocessor)
Bi-amp Capability
BTL (Bridged Transless or Bridging)
AUDIO Onkyo TX-RZ840 Yamaha RX-V4A
Digital Signal Processing (DSP) Engine32-bit Digital Signal Processing Engines
Surround:AI™
DACAKM AK4458Burr-Brown PCM5101A
DAC Specs384 kHz/32 Bit384 kHz/32 Bit
Maximum Channel Processing11.25.1
Air Studios Monitor Certification
Dolby Atmos
Dolby Atmos Height Virtualization
Dolby Atmos Music
Dolby TrueHD
Dolby Digital Plus
Dolby Surround Upmixer
Dolby Pro Logic PLII
Dolby Digital EX
THX Listening Modes
DTS:X
DTS Neural:X
DTS Virtual:X
DTS Neo Neo:6
DTS-HD Master Audio
DTS-HD High Resolution Audio
DTS 96/24
DTS Express
DTS-ES
IMAX Enhanced
Auro 3D with Auro-Matic Upmixer
PCM 2-ch/Multi-ch Input 2-ch/Multi-ch Input
Music Playback via USBFLAC, WAV, Apple Lossless, WMA, MP3, DSD, AIFF, AAC, Dolby TrueHDMP3, 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 192 kHz/32 Bit
High Resolution Audio Formats via USBFLAC, WAV, Apple Lossless, DSD, AIFF, AAC, Dolby TrueHDApple 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 PLL (Phase Locked Loop) Jitter-Cleaning Circuit Technology for S/PDIF Audio
DTS Dialog Control
Dialog Enhancement
Dialog Level Adjustment
Dialog Normalization
Dialogue Lift
Tone Control All Channels
Compressed Music Enhancer Advanced Music Optimizer (bluetooth included)
High-resolution Music Enhancer
Adaptive DRC (Dynamic Range Control)
Initial Volume & Maximum Volume Setting
THX Processing Mode
Audyssey Dynamic EQ
Audyssey Dynamic Volume
Audyssey LFC
Audyssey Sub EQ HT
Audyssey DSX
Direct Mode
Pure Audio Mode
Pure Direct Analog Path Mode
Straight Decoding Mode
Pure Direct Mode
CINEMA DSP
DSP Programs17
SILENT CINEMA / Virtual CINEMA DSP
Virtual Speakers T-D (Theater-Dimensional)
Independent Subwoofer Outputs
CALIBRATION Onkyo TX-RZ840 Yamaha RX-V4A
Auto Speaker Calibration System with Mic. AccuEQ Advance with AccuReflex™ YPAO sound optimization
YPAO Volume
VIDEO Onkyo TX-RZ840 Yamaha RX-V4A
HDMI Version2.1
Enhanced ARC
HDCP Version2.32.3
HDR10
HDR10+
Dynamic HDR
Dolby Vision
HLG (Hybrid Log Gamma)
BT.2020 color space
QMS (Quick Media Switching)
ALLM (Auto Low Latency Mode)
VRR (Variable Refresh Rate)
QFT (Quick Frame transport)
3-D Ready
Video Signal Passthroughup to 4K/60p (RGB/YCbCr4:4:4)up to 8K 50/60Hz and 4K 100/120Hz 4:4:4
Video Signal Upscaling 1080p to 4K 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
isf Certified Calibration Control
CONNECTIVITY Onkyo TX-RZ840 Yamaha RX-V4A
MHL Input
FireConnect
FlareConnect
MusicCast
Chromecast Built-In
DTS Play-Fi via Onkyo Music Control app
Works with Amazon Alexa
Google assistant
Works with SONOS
AirPlay AirPlay 2 after firmware update AirPlay 2
Apple Product Connection iPod, iPhone and iPad iPod, iPhone and iPad
Remote AppOnkyo Controller and Music Control apps (iPhone® / iPad® / Android™ phone / tablet)
InstaPrevue Input Source Prevue
Ethernet
Ethernet Switch
Wi-Fi
Bluetooth SBC, AAC SBC, AAC
HDBaseT Compatible
HDMI Inputs7 (1 front)4
HDMI Outputs2 (1 Main, 1 Sub/Zone2)1
8K Inputs4
USB Input1 (Rear)USB memory, Portable Audio Player
USB DC Out Port
RCA Line Input63
RCA Line Output
XLR Line Inputs
Phono Input
Optical Inputs11
Optical Outputs
Coaxial Inputs11
Composite Video Input2
Composite Video Output
S-Video Input
S-Video Output
Component Video Input1
Component Video Output
PC In
Multi-Channel Input
RCA Pre-Outs11.2 (barter to Zone 3 Pre/Line Out)0.2
XLR Pre-outs
Front A/V InputsHDMIUSB
Speaker A/B
Headphone Out6.3 mm (1/4")6.3 mm (1/4")
ZONES Onkyo TX-RZ840 Yamaha RX-V4A
Zones31
Powered Zones 2 and 3
Zone 2 OutsHDMI, RCA Pre/Line Out (shared with Zone B Line out)
Zone 3 OutsRCA Pre/Line Out
Zone B Video Output
Whole House Mode
RS-232C Interface
+12V Trigger Output1 (MAIN, 100 mA)
Remote (IR) Input/Output1 / 00 / 0
Party Mode
MISC Onkyo TX-RZ840 Yamaha RX-V4A
On-Screen Display Graphical User Interface with Overlaid On-Screen Display (OSD) via HDMIGraphical User Interface
GUI Languages7
SCENESCENE (4 sets)
Web Browser Control
IP Control for CI
PreAmp Mode
Detachable Power Cord
uport
dockport
ONKYO-RI System Control
RIHD (Remote Interactive Over HDMI)
Smart Grid-Ready
RADIO Onkyo TX-RZ840 Yamaha RX-V4A
Analog Tuner FM/AM FM/AM
Presets4040
Digital Radio
Internet Radio TuneIn
Pandora
Spotify
Tidal
Deezer
Napster
SiriusXM Internet Radio
CONSTRUCTION Onkyo TX-RZ840 Yamaha RX-V4A
Solid Aluminum Front
A.R.T. Wedge
Speaker Terminals95
Large Speaker Terminals95
Color-Coded Speaker Terminals
Transparent High-Grade Speaker Terminals
18mm Pitch High Grade Pre-outs
19mm-Pitch Audio Inputs
Gold plated RCA terminals
POWER Onkyo TX-RZ840 Yamaha RX-V4A
Power SupplyAC 120 V, 60 HzAC 120 V, 60 Hz
H.C.P.S. (High Current Power Supply) Customized Transformer
Toroidal Transformer
Power Consumption850 W260 W
No Sound Power70 W
Standby Power0.15 W0.1 W
GENERAL Onkyo TX-RZ840 Yamaha RX-V4A
ECO Mode / Hybrid Standby Function
Auto Power Standby
Dimensions (W x H x D)435 mm x 201.5 mm x 398 mm
17-1/8" x 7-15/16" x 15-11/16"
435 mm x 171 mm x 377 mm (with antenna: 435 mm x 245 mm x 377 mm)
17-1/8" x 6-3/4" x 14-7/8" (with antenna up: 17-1/8" x 9-5/8" x 14-7/8")
Dimensions of Package (W x H x D)570 mm x 335 mm x 490 mm
22-7/16" x 13-3/16" x 19-5/16"
Weight14 kg (30.9 lbs)8.8 kg (19.4 lbs)
Weight of Package17.0 kg (37.5 lbs)
Warranty3 Years2 Years
SPECS Onkyo TX-RZ840 Yamaha RX-V4A
Power Output (8 Ω, 20 Hz - 20 kHz, 2120 W (0.08% THD)80 W (0.06% THD)
Power Output (8 Ω, 1 kHz, 295 W (0.9% THD)
Rated Power Output (8 Ω, 1 kHz, 1 channel Driven)115 W (0.9% THD)
Maximum Effective Output Power (8 Ω, 1 kHz, 1 channel Driven, JEITA)140 W (10% THD)
Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA)250 W (10% THD)145 W (10% THD)
Dynamic Power per Channel (3 Ω, Front)250 W
Dynamic Power per Channel (4 Ω, Front)220 W
Dynamic Power per Channel (8 Ω, Front)130 W
THD0.08% (20 Hz - 20 kHz, Half power)0.04% (AUDIO 3 etc. to Front, Pure Direct, 20 Hz - 20 kHz, 40 W, 8 Ω)
Damping Factor100 (Front, 1 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 kΩ
Maximum Input Sensitivity (Line)2.4 V (1 kHz, 0.5% THD)
Rated Preout Level and Impedance1 V/470 Ω1.0 V/470Ω (Subwoofer)
Rated Headphone Power Output85 mW (32 Ω, 1 kHz, 10% THD)
Phono Overload70 mV (MM, 1 kHz 0.5%)
S/N Ratio (Line, IHF-A)106 dB110 dB
S/N Ratio (Phono MM, IHF-A)80 dB
Frequency Response (Analog In)5 Hz - 100 kHz/+1 dB, -3 dB (Direct/Pure Audio)+0/-3 dB (AUDIO 3 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)70 dB/50 dB
DSD Sampling Rates via HDMI2.8 MHz2.8 MHz
DSD Sampling Rates via USB2.8 MHz, 5.6 MHz, 11.2 MHz11.2 MHz, 5.6 MHz, 2.8 MHz
Video Input Sensitivity/Output Level and Impedance1 Vp-p/75 Ω (Component Y)
0.7 Vp-p/75 Ω (Component PB/CB, PR/CR)
1 Vp-p/75 Ω (Composite)
Ethernet Standard10BASE-T/100BASE-TX10BASE-T/100BASE-TX
Wi-Fi StandardIEEE 802.11 a/b/g/nIEEE 802.11 a/b/g/n/ac
Wi-Fi Terminal Frequency5 GHz, 2.4 GHz2.4 GHz, 5 GHz
Bluetooth Version4․24․2
Bluetooth Frequency2.4 GHz2.4 GHz
USB TerminalVer. 2.0, 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: 1.0 µV (11.2 dBf)Mono: 3 µV (20.8 dBf)
FM S/N RatioMono/Stereo: 69 dB/68 dB
FM Harmonic Distortion (IHF, 1 kHz)Mono/Stereo: 0.5%/0.6%
AM Frequency530 kHz - 1710 kHz530 kHz - 1710 kHz

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

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