Onkyo TX-RZ620

    88
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    Highlights

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

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

    1. Overview

    Onkyo TX-RZ620 was introduced in 2017. It is equipped with 7 channel amplifier with 100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) power per channel and is capable of 7.1 maximum channel processing. It supports Dolby Atmos and DTS:X, passes 4K/60Hz video signal.

    We evaluated the a/v receiver and gave 88 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
    88
    Audio Features
    86
    Video Features
    94
    Connectivity
    84
    Zones
    81
    Radio
    92
    OVERALL
    88

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


    Here is a history of the series, where you can view and compare the main specifications of the receivers.

    Evolution of the series
    Model Year Chann. Power Dolby Atmos DTS:X HDR10 HDR10+ Dolby Vision Pass. Price
    TX-RZ630 Image cannot be found 2018 9.2 90 W 4K
    TX-RZ620 Image cannot be found 2017 7.2 100 W 4K
    TX-RZ610 Image cannot be found 2016 7.2 100 W 4K

    You can view their side-by-side comparison here: Onkyo TX-RZ630 vs TX-RZ620 vs TX-RZ610.

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    2. Pros and Cons

    In this section we present pros and cons of Onkyo TX-RZ620.

    PROs

    •   Dolby Atmos
    •   DTS:X
    •   DSD via HDMI
    •   Auto Speaker Calibration System with Mic.
    •   HDR10
    •   Dolby Vision
    •   New HDCP Version
    •   Analog To HDMI Upconversion
    •   Wi-Fi
    •   Bluetooth
    •   Chromecast Built-In
    •   7 HDMI Inputs
    •   USB Input
    •   Many RCA Line Inputs
    •   Phono Input
    •   Composite Video Inputs
    •   Component Video Inputs
    •   Ethernet
    •   Analog Tuner
    •   Pandora
    •   Spotify
    •   Tidal

    CONs

    •   No Front Wide Channel Support
    •   No Dolby Atmos Height Virtualization
    •   No IMAX Enhanced
    •   No Auro 3D with Auro-Matic Upmixer
    •   No HDR10+
    •   No eARC
    •   No 8K Passthrough
    •   Does not Work with Amazon Alexa
    •   0 8K Input
    •   No RCA Pre-Outs
    •   No Digital Radio

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

    AVERAGE

    •   7.2 Channels
    •   Power Output - 100 W
    •   7.1 Channel Processing
    •   2 HDMI Outputs
    •   2 Zones
    •   Bluetooth 4․1 + LE

    3. Onkyo 2017 Lineup

    In 2017 Onkyo released 9 new receivers. Here is the lineup:

    Onkyo 2017 Lineup
    ModelChannelsPowerMax. Ch. Proc.Pre OutsImmersive AudioZones Price
    TX-RZ920 Image cannot be found 9.2135 W11.111.2Dolby Atmos
    DTS:X
    3
    TX-RZ820 Image cannot be found 7.2130 W7.17.2Dolby Atmos
    DTS:X
    3
    TX-RZ720 Image cannot be found 7.2110 W7.1Dolby Atmos
    DTS:X
    2
    TX-RZ620 Image cannot be found 7.2100 W7.1Dolby Atmos
    DTS:X
    2
    TX-NR777 Image cannot be found 7.2110 W7.1Dolby Atmos
    DTS:X
    2
    TX-NR676 Image cannot be found 7.2100 W7.1Dolby Atmos
    DTS:X
    2
    TX-NR575 Image cannot be found 7.280 W7.1Dolby Atmos
    DTS:X
    2
    TX-NR474 Image cannot be found 5.1135 W5.1Dolby Atmos
    DTS:X
    1
    TX-SR373 Image cannot be found 5.280 W5.11

    You can view their side-by-side comparison here: Onkyo TX-RZ920 vs TX-RZ820 vs TX-RZ720 vs TX-RZ620 vs TX-NR777 vs TX-NR676.

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    4. Changes from the TX-RZ610

    Onkyo TX-RZ620 has replaced TX-RZ610. Here we present differences between these two models.

    UPGRADES Onkyo TX-RZ620 vs Onkyo TX-RZ610
    Optimum Gain Volume Circuitry vs
    Certified 4 Ω Performance vs
    HLG vs
    DTS Play-Fi vs
    Deezer vs
    DOWNGRADES Onkyo TX-RZ620 vs Onkyo TX-RZ610
    Video Signal Upscaling vs 1080p to 4K
    Less HDMI Inputs 7 (1 front) vs 8 (1 front)
    Less RCA Line Inputs 6 vs 7 (1 Front)
    Solid Aluminum Front vs
    Lower Capacitor Bank 10,000 µF vs 15,000 µF
    Lower Rated Headphone Power Output 80 mW (32 Ω, 1 kHz, 10% THD) vs 90 mW (32 Ω, 1 kHz, 10% THD)

    For more detailed comparison between the models please visit Onkyo TX-RZ620 vs TX-RZ610.

    5. Amplifier

    7 channel Amplifier

    Onkyo TX-RZ620 features 7 channel power amplifier. It is rated at 100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) and is able to drive 4 ohm speakers.

    • Dynamic Audio Amplification: Onkyo TX-RZ620 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.
    AMPLIFIER
    Channels7.2
    Power Output100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
    Front Wide Channel Support
    Dynamic Audio Amplification
    Non-Phase Shift Amplifier
    VLSC (Vector Linear Shaping Circuitry) Front L/R channels
    Optimum Gain Volume Circuitry
    THX™ Certification
    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)

    6. Speaker Configurations

    Onkyo TX-RZ620's 7 channel amplifier can be assigned for different speaker configurations.

    • Dolby Atmos Configurations: The following speaker configurations are supported for Dolby Atmos:
    • 5.2.2 with internal amplifier.
    • DTS:X Configurations: 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:
    • 5.2, 7.2 with internal amplifier.
    • 2-ch Bi-Amp: Onkyo TX-RZ620 allows you 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.

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    7. Immersive Audio Formats

    Dolby Atmos

    Onkyo TX-RZ620 supports Dolby Atmos with Surround Upmixer.

    • 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.

    DTS:X

    Onkyo TX-RZ620 supports DTS:X with Neural:X.

    • Neural:X 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: 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.
    DECODING
    Dolby Atmos
    Dolby Atmos Height Virtualization
    Dolby Atmos Music
    Dolby TrueHD
    Dolby Digital Plus
    Dolby Surround Upmixer
    Dolby Pro Logic
    Dolby Digital EX
    THX Listening Modes
    DTS:X
    DTS Neural:X
    DTS Virtual:X
    DTS Neo
    DTS-HD Master Audio
    DTS-HD High Resolution Audio
    DTS 96/24
    DTS Express
    DTS-ES
    IMAX Enhanced
    Auro 3D with Auro-Matic Upmixer

    8. HDMI

    Onkyo TX-RZ620 features 7 HDMI inputs. It has 2 outputs which work parallelly and output the same signal.

    • 4K/60Hz Passthrough: All inputs pass up to 4K/60p (RGB/YCbCr4:4:4) video signal.
    • Analog To HDMI Upconversion: The a/v receiver supports video upconversion, so you can connect your analog Component and Composite video sources and Onkyo TX-RZ620 will output them 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%.
    • HDCP 2.2 Copy Protection: All inputs and outputs are HDCP 2.2 compliant which is a requirement for 4K/HDR copy-protected content transmission.
    • 3D Ready: Onkyo TX-RZ620 is able to pass 3D video through HDMI.

    HDR (High Dynamic Range)

    Onkyo TX-RZ620 supports HDR (high dynamic range) video formats such as HDR10, Dolby Vision and Hybrid Log-Gamma via HDMI ports. 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.



    VIDEO FEATURES
    HDR10
    HDR10+
    Dynamic HDR
    BT.2020 color space
    Dolby Vision
    HLG (Hybrid Log Gamma)
    HDBaseT Compatible
    Enhanced Audio Return Channel (eARC)
    HDCP Version2.2
    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)
    Video Signal Upscaling

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    9. Room Calibration

    Onkyo TX-RZ620 comes with AccuEQ with AccuReflex™ room correction system and includes the calibration microphone.

    • 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.

    10. Multi-zone Playback

    Onkyo TX-RZ620 offers multi-zone playback which allows you to play different input sources in 2 different rooms.


    Zone 2

    • Powered Zone 2: You can use the unit's 2 amplifier channels by connecting Zone 2 speakers directly to the speaker terminals. The remaining 5 channels will be left for main zone amplification.
    • Audio Pre/Line Output: If you have a dedicated amplifier for Zone 2 you can connect it to the a/v receiver via pre/line outs and use "pre out" option to control volume from the a/v receiver or use "line out" option - send fixed signal and then control volume on the Zone 2 amplifier.
    ZONES
    Number of Zones2
    Powered Zones 2
    Zone 2 OutsRCA Pre/Line Out
    Whole House Mode
    RS-232C Interface
    +12V Trigger Output1 (MAIN, 100 mA)
    Remote (IR) Input/Output1 / 0

    11. Inputs and Outputs

    Audio

    • Phono Input: There is an MM phono input with built-in phono stage for connecting the moving magnet cartridge output of the turntable directly to the a/v receiver.
    • Analog Line Inputs: There are 6 line inputs for analog audio connection.
    • Digital Inputs: 2 optical inputs and 1 coaxial input are available for digital audio connection.
    • Headphone Output: There is a 6.3 mm (1/4") headphone output jack on the front panel.

    Video

    • HDMI:
    • Inputs: 7 (1 front)   Outputs: 2 (simultaneous)
      8K Inputs: 0
    • Composite Video: Connect you VCR, Laserdisc player and other old video equipment with composite video cables.
    • Inputs: 2   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-RZ620 supports up to 480i/576i resolution on Component video connectors.
    • Inputs: 2   Outputs: 0

    Front A/V Inputs

    • HDMI, Mini-Jack
    Image cannot be found
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    TERMINALS
    HDMI Inputs7 (1 front)
    HDMI Outputs2 (simultaneous)
    8K Inputs
    USB Input1 (Rear)
    USB DC Out Port
    Optical Inputs2
    Optical Outputs
    Coaxial Inputs1
    RCA Line Inputs6
    RCA Line Outputs
    XLR Line Inputs
    Phono Input
    Multi-Channel Input
    RCA Pre-Outs0.2
    XLR Pre-outs
    Composite Video Inputs2
    Composite Video Outputs
    S-Video Inputs
    S-Video Outputs
    Component Video Inputs2
    Component Video Outputs

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    12. Evaluation

    We evaluate Onkyo TX-RZ620 and give score of 88 out of 100. We also give separate scores for 6 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.


    OVERALL
    88

    Amplifier

    EXCELLENT
    88

    We give Onkyo TX-RZ620 a score of 88 for Amplifier features.

    •   7.2 Channels
    •   Power Output - 100 W

    Audio Features

    EXCELLENT
    86

    We give Onkyo TX-RZ620 a score of 86 for Audio Features features.

    •   7.2 Channels
    •   No Front Wide Channel Support
    •   7.1 Channel Processing
    •   Dolby Atmos
    •   No Dolby Atmos Height Virtualization
    •   DTS:X
    •   No IMAX Enhanced
    •   No Auro 3D with Auro-Matic Upmixer
    •   DSD via HDMI

    Video Features

    EXCELLENT
    94

    We give Onkyo TX-RZ620 a score of 94 for Video Features features.

    •   HDR10
    •   No HDR10+
    •   Dolby Vision
    •   No 8K Passthrough
    •   Analog To HDMI Upconversion

    Connectivity

    GOOD
    84

    We give Onkyo TX-RZ620 a score of 84 for Connectivity features.

    •   No eARC
    •   New HDCP Version
    •   Wi-Fi
    •   Bluetooth
    •   Does not Work with Amazon Alexa
    •   Chromecast Built-In
    •   7 HDMI Inputs
    •   2 HDMI Outputs
    •   0 8K Input
    •   USB Input
    •   Many RCA Line Inputs
    •   Phono Input
    •   No RCA Pre-Outs
    •   Composite Video Inputs
    •   Component Video Inputs
    •   Ethernet
    •   Bluetooth 4․1 + LE

    Zones

    GOOD
    81

    We give Onkyo TX-RZ620 a score of 81 for Zones features.

    •   2 Zones

    Radio

    EXCELLENT
    92

    We give Onkyo TX-RZ620 a score of 92 for Radio features.

    •   Analog Tuner
    •   Pandora
    •   Spotify
    •   Tidal

    13. Replaced by TX-RZ630

    In 2018 Onkyo TX-RZ620 was replaced by Onkyo TX-RZ630. Let us now have a look at some important differences between Onkyo TX-RZ620 and its successor.

    UPGRADES Onkyo TX-RZ630 vs Onkyo TX-RZ620
    More Channels 9.2 vs 7.2
    More Channel Processing 9.1 vs 7.1
    More Tone Control Channels All Channels vs Front L/R Channels
    More Advanced Auto Speaker Calibration System AccuEQ Advance with AccuReflex™ vs AccuEQ with AccuReflex™
    Works with SONOS requires firmware update & Sonos Connect vs
    AirPlay AirPlay 2 after firmware update vs AirPlay
    More HDMI Outputs 2 (1 Main, 1 Sub/Zone2) vs 2 (simultaneous)
    More Zones 3 vs 2
    More Powered Zones 2 and 3 vs 2
    Zone 2 Outs HDMI, RCA Line Out vs RCA Pre/Line Out
    Whole House Mode vs
    Bigger Power Supply 740 W vs 580 W
    DOWNGRADES Onkyo TX-RZ630 vs Onkyo TX-RZ620
    Lower Power Output 90 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) vs 100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
    Lower Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC) 90 W (0.08% THD) vs 100 W (0.08% THD)

    For more detailed comparison between the models please visit Onkyo TX-RZ620 vs TX-RZ630.

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    For the complete list of specifications please go to the next page:

    Discussion

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