Onkyo TX-SR373

    69
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    Highlights

    • 5.2 Channels
    • 5.1 Channel Processing
    • 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
    • HDR10, Dolby Vision
    • 4K/60Hz Passthrough
    • Bluetooth
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    Disclosure: We earn money from the affiliate links to products associated with content in this article.

    Overview

    Onkyo TX-SR373 was introduced in 2017. It is equipped with 5 channel amplifier with 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) power per channel and is capable of 5.1 maximum channel processing. It passes 4K/60Hz video signal.

    We evaluated the a/v receiver and gave 69 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
    71
    Audio Features
    62
    Video Features
    90
    Connectivity
    62
    Zones
    55
    Radio
    59
    OVERALL
    69

    For more details about the ranking please scroll down to an    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-SR393 Image cannot be found 2019 5.2 80 W 4K
    TX-SR383 Image cannot be found 2018 7.2 80 W 4K
    TX-SR373 Image cannot be found 2017 5.2 80 W 4K
    TX-SR353 Image cannot be found 2016 5.1 80 W 4K
    TX-SR343 Image cannot be found 2015 5.1 65 W 4K
    TX-SR333 Image cannot be found 2014 5.1 65 W 4K
    TX-SR313 Image cannot be found 2012 5.1 65 W 1080p
    TX-SR309 Image cannot be found 2011 5.1 65 W 1080p

    You can view their side-by-side comparison here: Onkyo TX-SR393 vs TX-SR383 vs TX-SR373 vs TX-SR353 vs TX-SR343 vs TX-SR333.

    Pros and Cons

    In this section we present pros and cons of Onkyo TX-SR373.

    PROs

    •   DSD via HDMI
    •   Auto Speaker Calibration System with Mic.
    •   HDR10
    •   Dolby Vision
    •   New HDCP Version
    •   Bluetooth
    •   USB Input
    •   Composite Video Inputs
    •   Analog Tuner

    CONs

    •   Few Channels - 5.2
    •   Low Power Output - 80 W
    •   No Front Wide Channel Support
    •   5.1 Channel Processing
    •   No Dolby Atmos
    •   No Dolby Atmos Height Virtualization
    •   No DTS:X
    •   No IMAX Enhanced
    •   No Auro 3D with Auro-Matic Upmixer
    •   No HDR10+
    •   No eARC
    •   No 8K Passthrough
    •   No Wi-Fi
    •   Does not Work with Amazon Alexa
    •   4 HDMI Inputs
    •   1 HDMI Outputs
    •   0 8K Input
    •   Few RCA Line Inputs
    •   No Phono Input
    •   No RCA Pre-Outs
    •   No Ethernet
    •   No Zones
    •   No Digital Radio
    •   No Pandora
    •   No Spotify
    •   No Tidal
    •   Bluetooth 3.0

    Onkyo 2017 Lineup

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

    Onkyo 2017 Lineup
    ModelChannelsPowerMax. Ch. Proc.Pre OutsRoom Corr.Immersive AudioZones Price
    TX-RZ920 Image cannot be found 9.2135 W11.111.2 AccuEQ with AccuReflex™Dolby Atmos
    DTS:X
    3
    TX-RZ820 Image cannot be found 7.2130 W7.17.2 AccuEQ with AccuReflex™Dolby Atmos
    DTS:X
    3
    TX-RZ720 Image cannot be found 7.2110 W7.1 AccuEQ with AccuReflex™Dolby Atmos
    DTS:X
    2
    TX-RZ620 Image cannot be found 7.2100 W7.1 AccuEQ with AccuReflex™Dolby Atmos
    DTS:X
    2
    TX-NR777 Image cannot be found 7.2110 W7.1 AccuEQ with AccuReflex™Dolby Atmos
    DTS:X
    2
    TX-NR676 Image cannot be found 7.2100 W7.1 AccuEQ with AccuReflex™Dolby Atmos
    DTS:X
    2
    TX-NR575 Image cannot be found 7.280 W7.1 AccuEQ with AccuReflex™Dolby Atmos
    DTS:X
    2
    TX-NR474 Image cannot be found 5.1135 W5.1 AccuEQ with AccuReflex™Dolby Atmos
    DTS:X
    1
    TX-SR373 Image cannot be found 5.280 W5.1 AccuEQ1

    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.

    Predecessor

    Here we are comparing Onkyo TX-SR373 to its predecessor TX-SR353 and displaying the major changes.

    UPGRADES Onkyo TX-SR373 vs Onkyo TX-SR353
    More Channels 5.2 vs 5.1
    Dolby Vision vs
    Higher S/N Ratio (Line, IHF-A) 106 dB vs 98 dB

    For more detailed comparison between the models please visit Onkyo TX-SR373 vs TX-SR353.

    Successor

    In 2018 Onkyo TX-SR373 was replaced by Onkyo TX-SR383. Let us now have a look at some important differences between Onkyo TX-SR373 and its successor.

    UPGRADES Onkyo TX-SR383 vs Onkyo TX-SR373
    More Channels 7.2 vs 5.2
    More Channel Processing 7.1 vs 5.1
    Dolby Atmos vs
    Dolby Surround Upmixer vs
    DTS:X vs
    DTS Neural:X vs
    DTS Express vs
    DTS-ES vs
    More Zones 2 vs 1
    More Speaker Terminals 7 vs 5
    Bigger Power Supply 270 W vs 210 W
    Wider AM Frequency Range 530 kHz - 1710 kHz vs 530 kHz - 1700 kHz
    DOWNGRADES Onkyo TX-SR383 vs Onkyo TX-SR373
    Dolby Pro Logic vs PLII
    DTS Neo vs Neo:6

    For more detailed comparison between the models please visit Onkyo TX-SR373 vs TX-SR383.

    Audio Section

    5 channel Amplifier

    Onkyo TX-SR373 features 5 channel power amplifier. It is rated at 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven).

      AMPLIFIER
      Channels5.2
      Power Output80 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)
      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)

      Speaker Configurations

      Onkyo TX-SR373's 5 channel amplifier can be assigned for different speaker configurations.

      • Configurations: Available configurations are:
      • 5.2 with internal amplifier.
      Onkyo TX-SR373
      DECODING
      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

      Sound Processing

      • Advanced Music Optimizer: Compressed music enhancement in Onkyo TX-SR373 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-SR373 comes with AccuEQ 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.

      Video Section

      HDMI

      Onkyo TX-SR373 features 4 HDMI inputs. It has 1 output.

      • 4K/60Hz Passthrough: All inputs pass up to 4K/60p (4:4:4) video signal.
      • 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-SR373 is able to pass 3D video through HDMI.

      HDR (High Dynamic Range)

      Onkyo TX-SR373 supports HDR (high dynamic range) video formats such as HDR10 and Dolby Vision. 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.
      • 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.
      Onkyo TX-SR373
      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 (4:4:4)
      Video Signal Upscaling

      Check out the receivers which are frequently compared to Onkyo TX-SR373.

      >

      Inputs and Outputs

      Audio

      • Analog Line Inputs: There are 3 line inputs for analog audio connection.
      • Digital Inputs: 1 optical input 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: 4   Outputs: 1
        8K Inputs: 0
      • Composite Video: Connect you VCR, Laserdisc player and other old video equipment with composite video cables.
      • Inputs: 2   Outputs: 1

      Front A/V Inputs

      • USB
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      TERMINALS
      HDMI Inputs4
      HDMI Outputs1
      8K Inputs
      USB Input1 (Front)
      USB DC Out Port
      Optical Inputs1
      Optical Outputs
      Coaxial Inputs1
      RCA Line Inputs3
      RCA Line Outputs
      XLR Line Inputs
      Phono Input
      Multi-Channel Input
      RCA Pre-Outs0.2
      XLR Pre-outs
      Composite Video Inputs2
      Composite Video Outputs1
      S-Video Inputs
      S-Video Outputs
      Component Video Inputs
      Component Video Outputs

      Onkyo TX-SR373 Evaluation

      We evaluate Onkyo TX-SR373 and give score of 69 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
      69

      Amplifier

      GOOD
      71

      We give Onkyo TX-SR373 a score of 71 for Amplifier features.

      •   Few Channels - 5.2
      •   Low Power Output - 80 W

      Audio Features

      AVERAGE
      62

      We give Onkyo TX-SR373 a score of 62 for Audio Features features.

      •   Few Channels - 5.2
      •   No Front Wide Channel Support
      •   5.1 Channel Processing
      •   No Dolby Atmos
      •   No Dolby Atmos Height Virtualization
      •   No DTS:X
      •   No IMAX Enhanced
      •   No Auro 3D with Auro-Matic Upmixer
      •   DSD via HDMI

      Video Features

      EXCELLENT
      90

      We give Onkyo TX-SR373 a score of 90 for Video Features features.

      •   HDR10
      •   No HDR10+
      •   Dolby Vision
      •   No 8K Passthrough

      Connectivity

      AVERAGE
      62

      We give Onkyo TX-SR373 a score of 62 for Connectivity features.

      •   No eARC
      •   New HDCP Version
      •   No Wi-Fi
      •   Bluetooth
      •   Does not Work with Amazon Alexa
      •   4 HDMI Inputs
      •   1 HDMI Outputs
      •   0 8K Input
      •   USB Input
      •   Few RCA Line Inputs
      •   No Phono Input
      •   No RCA Pre-Outs
      •   Composite Video Inputs
      •   No Ethernet
      •   Bluetooth 3.0

      Zones

      AVERAGE
      55

      We give Onkyo TX-SR373 a score of 55 for Zones features.

      •   No Zones

      Radio

      AVERAGE
      59

      We give Onkyo TX-SR373 a score of 59 for Radio features.

      •   Analog Tuner
      •   No Pandora
      •   No Spotify
      •   No Tidal


      For a full specification list please go to the specifications page:

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