Onkyo TX-SR373 vs Onkyo TX-NR474

      Onkyo TX-SR373

      Onkyo TX-NR474
      69
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      81
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      North America
      Europe
      Australia
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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

      Highlights

      • 5.1 Channels
      • 5.1 Channel Processing
      • 135 W (6 Ω, 1 kHz, 1 channel driven)
      • Dolby Atmos, DTS:X
      • HDR10, Dolby Vision
      • 4K/60Hz Passthrough
      • Wi-Fi, Bluetooth, Ethernet

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

      Table of Contents
      1. Overview
      2. Pros and Cons
      3. Advantage of Onkyo TX-SR373
      4. Advantage of Onkyo TX-NR474
      5. Common Strengths and Weaknesses
      6. Amplifier
      7. Speaker Configurations
      8. Immersive Audio Formats
      9. HDMI
      10. Inputs and Outputs
      11. Evaluations
      12. Specifications

      1. Overview

      Here we are comparing Onkyo TX-SR373 to Onkyo TX-NR474 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-SR373 has 5 channel and the Onkyo TX-NR474 has 5 channel amplifiers.


      Onkyo TX-SR373 Onkyo TX-NR474

      Onkyo TX-SR373 was introduced in 2017. 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 4K/60Hz video signal.

      Onkyo TX-NR474 was introduced in 2017. It is equipped with 5 channel amplifier with 135 W (6 Ω, 1 kHz, 1 channel driven) power per channel and is capable of 5.1 maximum channel processing. It supports Dolby Atmos and DTS:X, passes 4K/60Hz video signal.

      We evaluated Onkyo TX-SR373 and Onkyo TX-NR474 and gave them scores of 69 and 81 out of 100 recpectively. Our ranking system is based on the amplifier specifications, audio and video features, connectivity, multizone capabilities, radio and many other details.

      Onkyo TX-SR373

      Onkyo TX-NR474

      Amplifier
      71
      Amplifier
      81
      Audio Features
      62
      Audio Features
      85
      Video Features
      90
      Video Features
      90
      Connectivity
      62
      Connectivity
      78
      Zones
      55
      Zones
      55
      Radio
      59
      Radio
      90
      OVERALL
      69
      OVERALL
      81

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

      2. Pros and Cons

      In this section we present pros and cons of Onkyo TX-SR373 and Onkyo TX-NR474.

      PROS

      Onkyo TX-SR373

      Onkyo TX-NR474

      •   DSD via HDMI
      •   Auto Speaker Calibration System with Mic.
      •   HDR10
      •   Dolby Vision
      •   New HDCP Version
      •   Bluetooth
      •   USB Input
      •   Composite Video Inputs
      •   Analog Tuner
      •   High Power Output - 135 W
      •   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
      •   USB Input
      •   Composite Video Inputs
      •   Ethernet
      •   Analog Tuner
      •   Spotify
      •   Tidal

      CONS

      Onkyo TX-SR373

      Onkyo TX-NR474

      •   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
      •   Few Channels - 5.1
      •   No Front Wide Channel Support
      •   5.1 Channel Processing
      •   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
      •   4 HDMI Inputs
      •   1 HDMI Outputs
      •   0 8K Input
      •   No Phono Input
      •   No RCA Pre-Outs
      •   No Zones
      •   No Digital Radio
      •   No Pandora


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

      AVERAGE

      Onkyo TX-SR373

      Onkyo TX-NR474

      •   RCA Line Inputs
      •   Bluetooth 4․1 + LE

      3. Advantage of Onkyo TX-SR373

      This section shows those features and specifications which are the reason to choose Onkyo TX-SR373 over Onkyo TX-NR474.

      Check the Price

      Onkyo TX-SR373
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      Onkyo TX-SR373 vs Onkyo TX-NR474
      More Channels 5.2 vs 5.1
      Dolby Pro Logic PLII vs
      DTS Neo Neo:6 vs
      More Composite Video Outputs 1 vs
      Front A/V Inputs USB vs Mini-Jack
      Higher Power Output (6 Ω, 1 kHz, 1 channel driven, IEC) 140 W (1% THD) vs 135 W (1% THD)
      Lower THD 0.06% (20 Hz - 20 kHz, 1 Channel Driven, 50 W) vs 0.08% (20 Hz - 20 kHz, Half power)

      4. Advantage of Onkyo TX-NR474

      This section shows those features and specifications which are the reason to choose Onkyo TX-NR474 over Onkyo TX-SR373.

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      Onkyo TX-NR474
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      Onkyo TX-SR373 vs Onkyo TX-NR474
      Higher Power Output 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) vs 135 W (6 Ω, 1 kHz, 1 channel driven)
      Non-Phase Shift Amplifier vs
      Certified 4 Ω Performance vs
      Higher DAC Specs 192 kHz/24 Bit vs 384 kHz/32 Bit
      Dolby Atmos vs
      Dolby Surround Upmixer vs
      DTS:X vs
      DTS Neural:X vs
      DTS Express vs
      Music Playback via USB WMA, MP3, AAC vs FLAC, WAV, Apple Lossless, WMA, MP3, DSD, AIFF, AAC, Dolby TrueHD
      Higher Resolution Music Playback via USB vs up to 192 kHz
      DSD via HDMI 2-ch vs 2-ch/Multi-ch Input
      DSD via USB vs 2-ch Input
      Jitter Reduction vs PLL (Phase Locked Loop) Jitter-Cleaning Circuit Technology for S/PDIF Audio
      DTS Dialog Control vs
      Dialog Normalization vs
      Pure Audio Mode vs
      Virtual Speakers vs T-D (Theater-Dimensional)
      Analog To HDMI Upconversion vs Composite
      Wi-Fi vs
      Chromecast Built-In vs
      DTS Play-Fi vs
      DLNA 1.5 vs
      AirPlay vs AirPlay
      Remote Controll App vs Onkyo Remote App for iPod touch/iPhone and Android-Powered Devices
      More Optical Inputs 1 vs 2
      More RCA Line Inputs 3 vs 4 (1 Front)
      Ethernet vs
      RIHD (Remote Interactive Over HDMI) vs
      Analog Tuner FM/AM vs FM/AM with RDS
      More Presets 30 vs 40
      Internet Radio vs TuneIn
      Spotify vs
      Tidal vs
      Deezer vs
      More Large Speaker Terminals 2 vs 5
      H.C.P.S. (High Current Power Supply) vs
      Bigger Power Supply 210 W vs 400 W
      Higher Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA) 155 W (10% THD) vs 160 W (10% THD)
      Newer Bluetooth Version 3.0 vs 4․1 + LE
      Wider AM Frequency Range 530 kHz - 1700 kHz vs 522/530 kHz - 1611/1710 kHz

      5. Common Strengths and Weaknesses

      We already listed pros and cons of each model. However, you may also find useful to look at their common strengths and weaknesses shown side-by-side.

      STRENGTHS Onkyo TX-SR373 Onkyo TX-NR474
        DSD via HDMI 2-ch 2-ch/Multi-ch Input
        Auto Speaker Calibration System with Mic. AccuEQ AccuEQ with AccuReflex™
        HDR10
        Dolby Vision
        New HDCP Version2.22.2
        Bluetooth SBC, AAC SBC, AAC
        USB Input1 (Front)1 (Rear)
        Composite Video Inputs22
        Analog Tuner FM/AM FM/AM with RDS
      WEAKNESSES Onkyo TX-SR373 Onkyo TX-NR474
        Few Channels5.25.1
        No Front Wide Channel Support
        Channel Processing5.15.1
        No Dolby Atmos Height Virtualization
        No IMAX Enhanced
        No Auro 3D with Auro-Matic Upmixer
        No HDR10+
        No eARC
        No 8K Passthroughup to 4K/60p (4:4:4)up to 4K/60p (RGB/YCbCr4:4:4)
        Does not Work with Amazon Alexa
        Few HDMI Inputs44
        Few HDMI Outputs11
        Few 8K Inputs
        No Phono Input
        No RCA Pre-Outs0.20.1
        No Zones11
        No Digital Radio
        No Pandora

      6. Amplifier

      Onkyo TX-SR373 Onkyo TX-NR474

      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).

      5 channel Amplifier: Onkyo TX-NR474 features 5 channel power amplifier. It is rated at 135 W (6 Ω, 1 kHz, 1 channel driven) and is able to drive 4 ohm speakers.


        AMPLIFIER Onkyo TX-SR373 Onkyo TX-NR474
        Channels5.25.1
        Power Output80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)135 W (6 Ω, 1 kHz, 1 channel driven)
        Front Wide Channel Support
        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)

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        Onkyo TX-SR373
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        7. Speaker Configurations

        Onkyo TX-SR373's and Onkyo TX-NR474's amplifiers can be assigned for different speaker configurations.

        • Dolby Atmos Configurations: The following speaker configurations are supported for Dolby Atmos:
        • Onkyo TX-SR373: Not supported.
        • Onkyo TX-NR474: 3.1.2 with internal amplifier.
        • DTS:X Configurations: The following speaker configurations are supported for DTS:X:
        • Onkyo TX-SR373: Not supported.
        • Onkyo TX-NR474: The speaker configurations for DTS:X are the same as for Dolby Atmos - 3.1.2 with internal amplifier.
        • Configurations without height channels: There are also other speaker configurations available which do not include height channels:
        • Onkyo TX-SR373: 5.2 with internal amplifier.
        • Onkyo TX-NR474: 5.1 with internal amplifier.

        8. Immersive Audio Formats

        Dolby Atmos

        Onkyo TX-NR474 supports Dolby Atmos.

        • Dolby Surround Upmixer: Onkyo TX-NR474 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.

        DTS:X

        Onkyo TX-NR474 supports DTS:X.

        • DTS Neural:X: Onkyo TX-NR474 features 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-NR474 has 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.
        AUDIO DECODING Onkyo TX-SR373 Onkyo TX-NR474
        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

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        Onkyo TX-NR474
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        9. HDMI

        Onkyo TX-SR373 and Onkyo TX-NR474 come with 4 HDMI inputs. It has 1 output.

        • 4K/60Hz Passthrough: On both receivers all inputs pass up to 4K/60p (4:4:4) video signal.
        • Analog To HDMI Upconversion: Onkyo TX-NR474 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 2.2 Copy Protection: Both receivers are HDCP 2.2 compliant which is a requirement for 4K/HDR copy-protected content transmission.
        • 3D Ready: Both receivers are able to pass 3D video through HDMI.

        HDR (High Dynamic Range)

        Both receivers support 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.



        VIDEO FEATURES Onkyo TX-SR373 Onkyo TX-NR474
        HDR10
        HDR10+
        Dynamic HDR
        BT.2020 color space
        Dolby Vision
        HLG (Hybrid Log Gamma)
        HDBaseT Compatible
        Enhanced Audio Return Channel (eARC)
        HDCP Version2.22.2
        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)up to 4K/60p (RGB/YCbCr4:4:4)
        Video Signal Upscaling

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        Onkyo TX-SR373
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        10. Inputs and Outputs

        Audio

        • Analog Line Inputs: There are 3 pair of line inputs on Onkyo TX-SR373 and 4 pair of line inputs on Onkyo TX-NR474 for connecting sources with analog outputs.
        • Digital Inputs: 1 optical input and 1 coaxial input are available on Onkyo TX-SR373 and 2 optical inputs and 1 coaxial input are available on Onkyo TX-NR474 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-SR373
          Inputs:           4   Outputs: 1
          8K Inputs: 0.
        • Onkyo TX-NR474
          Inputs:           4   Outputs: 1
          8K Inputs: 0.
        • Composite Video: Connect you VCR, Laserdisc player and other old video equipment with composite video cables.
        • Onkyo TX-SR373
          Inputs:           2   Outputs: 1.
        • Onkyo TX-NR474
          Inputs:           2   Outputs: 0.

        Front A/V Inputs

        • Onkyo TX-SR373: USB
        • Onkyo TX-NR474: Mini-Jack

        Onkyo TX-SR373

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        Onkyo TX-NR474

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        TERMINALS Onkyo TX-SR373 Onkyo TX-NR474
        HDMI Inputs44
        HDMI Outputs11
        8K Inputs
        USB Input1 (Front)1 (Rear)
        USB DC Out Port
        Optical Inputs12
        Optical Outputs
        Coaxial Inputs11
        RCA Line Inputs34 (1 Front)
        RCA Line Outputs
        XLR Line Inputs
        Phono Input
        Multi-Channel Input
        RCA Pre-Outs0.20.1
        XLR Pre-outs
        Composite Video Inputs22
        Composite Video Outputs1
        S-Video Inputs
        S-Video Outputs
        Component Video Inputs
        Component Video Outputs

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        Onkyo TX-NR474
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        11. Evaluations

        We evaluated Onkyo TX-SR373 and Onkyo TX-NR474 and gave them scores of 69 and 81 out of 100 recpectively. We also gave separate scores for 7 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.


        Onkyo TX-SR373

        Onkyo TX-NR474

        OVERALL
        69
        OVERALL
        81

        Amplifier

        GOOD
        71
        •   Few Channels - 5.2
        •   Low Power Output - 80 W
        GOOD
        81
        •   Few Channels - 5.1
        •   High Power Output - 135 W

        Audio Features

        AVERAGE
        62
        •   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
        EXCELLENT
        85
        •   Few Channels - 5.1
        •   No Front Wide Channel Support
        •   5.1 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
        90
        •   HDR10
        •   No HDR10+
        •   Dolby Vision
        •   No 8K Passthrough
        EXCELLENT
        90
        •   HDR10
        •   No HDR10+
        •   Dolby Vision
        •   No 8K Passthrough
        •   Analog To HDMI Upconversion

        Connectivity

        AVERAGE
        62
        •   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
        GOOD
        78
        •   No eARC
        •   New HDCP Version
        •   Wi-Fi
        •   Bluetooth
        •   Does not Work with Amazon Alexa
        •   Chromecast Built-In
        •   4 HDMI Inputs
        •   1 HDMI Outputs
        •   0 8K Input
        •   USB Input
        •   RCA Line Inputs
        •   No Phono Input
        •   No RCA Pre-Outs
        •   Composite Video Inputs
        •   Ethernet
        •   Bluetooth 4․1 + LE

        Zones

        AVERAGE
        55
        •   No Zones
        AVERAGE
        55
        •   No Zones

        Radio

        AVERAGE
        59
        •   Analog Tuner
        •   No Pandora
        •   No Spotify
        •   No Tidal
        EXCELLENT
        90
        •   Analog Tuner
        •   No Pandora
        •   Spotify
        •   Tidal

        12. Specifications

        GENERAL Onkyo TX-SR373 Onkyo TX-NR474
        BrandOnkyoOnkyo
        ModelTX-SR373TX-NR474
        TypeA/V ReceiverA/V Receiver
        CountryNorth AmericaAustralia
        Release Year20172017
        PredecessorOnkyo TX-SR353
        SuccessorOnkyo TX-SR383
        AMPLIFIER Onkyo TX-SR373 Onkyo TX-NR474
        Channels5.25.1
        Power Output80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)135 W (6 Ω, 1 kHz, 1 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)
        AUDIO FEATURES Onkyo TX-SR373 Onkyo TX-NR474
        Digital Signal Processing (DSP) Engine32-bit Digital Signal Processing Engines
        DACAKM AK4438
        DAC Specs192 kHz/24 Bit384 kHz/32 Bit
        Maximum Channel Processing5.15.1
        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
        Network Audio FormatsFLAC, WAV, Apple Lossless, WMA, MP3, DSD, AIFF, MPEG-4 AAC, LPCM
        Music Playback via USBWMA, MP3, AACFLAC, WAV, Apple Lossless, WMA, MP3, DSD, AIFF, AAC, Dolby TrueHD
        High Resolution Music Playback via USB and/or Network up to 192 kHz
        High Resolution Audio Formats via USBFLAC, WAV, Apple Lossless, DSD, AIFF, AAC, Dolby TrueHD
        Gapless Playback
        DSD via HDMI 2-ch 2-ch/Multi-ch Input
        DSD via USB 2-ch Input
        DSD to PCM Converter
        USB DAC
        Jitter Reduction PLL (Phase Locked Loop) Jitter-Cleaning Circuit Technology for S/PDIF Audio
        DTS Dialogue Control
        Dialog Enhancement
        Dialog normalization
        Dialogue Lift
        Tone Control Front L/R Channels Front L/R Channels
        Compressed Music Enhancer Advanced Music Optimizer Advanced Music Optimizer (bluetooth included)
        High-resolution Music Enhancer
        THX Processing Mode
        Audyssey Dynamic EQ
        Audyssey Dynamic Volume
        Audyssey LFC
        Audyssey Sub EQ HT
        Audyssey DSX
        Phase-Matching Bass Boost
        Direct Mode
        Pure Audio Mode
        Pure Direct Analog Path Mode
        Virtual Speakers T-D (Theater-Dimensional)
        CALIBRATION Onkyo TX-SR373 Onkyo TX-NR474
        Auto Speaker Calibration System with Mic. AccuEQ AccuEQ with AccuReflex™
        VIDEO FEATURES Onkyo TX-SR373 Onkyo TX-NR474
        HDR10
        HDR10+
        Dynamic HDR
        BT.2020 color space
        Dolby Vision
        HLG (Hybrid Log Gamma)
        HDBaseT Compatible
        Enhanced Audio Return Channel (eARC)
        HDCP Version2.22.2
        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)up to 4K/60p (RGB/YCbCr4:4:4)
        Video Signal Upscaling
        Analog To HDMI Upconversion Composite
        isf Certified Calibration Control
        CONNECTIVITY Onkyo TX-SR373 Onkyo TX-NR474
        Wi-Fi
        Bluetooth SBC, AAC SBC, AAC
        Works with Amazon Alexa
        Chromecast Built-In
        Works with SonoS
        DTS Play-Fi
        MHL Input
        DLNA 1.5
        AirPlay AirPlay
        Apple Product Connection iPod, iPhone and iPad
        Remote AppOnkyo Remote App for iPod touch/iPhone and Android-Powered Devices
        InstaPrevue Input Source Prevue
        TERMINALS Onkyo TX-SR373 Onkyo TX-NR474
        HDMI Inputs44
        HDMI Outputs11
        8K Inputs
        USB Input1 (Front)1 (Rear)
        USB DC Out Port
        Optical Inputs12
        Optical Outputs
        Coaxial Inputs11
        RCA Line Inputs34 (1 Front)
        RCA Line Outputs
        XLR Line Inputs
        Phono Input
        Multi-Channel Input
        RCA Pre-Outs0.20.1
        XLR Pre-outs
        Composite Video Inputs22
        Composite Video Outputs1
        S-Video Inputs
        S-Video Outputs
        Component Video Inputs
        Component Video Outputs
        Ethernet
        Ethernet Switch
        PC In
        Front A/V InputsUSBMini-Jack
        Speaker A/B
        Headphone Out6.3 mm (1/4")6.3 mm (1/4")
        Detachable Power Cord
        uport
        ZONES Onkyo TX-SR373 Onkyo TX-NR474
        Number of Zones11
        Whole House Mode
        RS-232C Interface
        +12V Trigger Output00
        Remote (IR) Input/Output0 / 00 / 0
        MISCELLANEOUS Onkyo TX-SR373 Onkyo TX-NR474
        On-Screen Display via HDMI Graphical Overlaid On-Screen Display (OSD) via HDMI with Quick Set-Up
        GUI Languages9
        ONKYO-RI System Control
        RIHD (Remote Interactive Over HDMI)
        Pre-Pro/Learning Remote / /
        On Screen Remote Programming
        Bi-directional Remote Setup via GUI
        RADIO Onkyo TX-SR373 Onkyo TX-NR474
        Analog Tuner FM/AM FM/AM with RDS
        Presets3040
        Digital Radio
        Internet Radio TuneIn
        Pandora
        Spotify
        Tidal
        Deezer
        Napster
        SiriusXM
        CONSTRUCTION Onkyo TX-SR373 Onkyo TX-NR474
        Solid Aluminum Front
        Speaker Terminals55
        Large Speaker Terminals25
        Color-Coded Speaker Terminals
        Transparent High-Grade Speaker Terminals
        Gold plated RCA terminals
        POWER Onkyo TX-SR373 Onkyo TX-NR474
        Power SupplyAC 120 V, 60 HzAC 220-240 V, 50/60 Hz
        Independent Power Supply
        H.C.P.S. (High Current Power Supply)
        Toroidal Transformer
        Power Consumption210 W400 W
        No Sound Power40 W
        Standby Power0.35 W0.15 W
        PHYSICAL Onkyo TX-SR373 Onkyo TX-NR474
        Dimensions (W x H x D)435 mm x 168 mm x 326.5 mm
        17-1/8" x 6-5/8" x 12-13/16"        		435 mm x 160 mm x 328 mm
        Weight8.0 kg (17 lb 10 oz)8.6 kg
        SPECIFICATIONS Onkyo TX-SR373 Onkyo TX-NR474
        Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)80 W (0.08% THD)
        Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA or IEC)155 W (10% THD)160 W (10% THD)
        Rated Power Output (6 Ω, 1 kHz, 1 channel driven, IEC)140 W (1% THD)135 W (1% THD)
        Dynamic Power per Channel (3 Ω, Front)160 W
        Dynamic Power per Channel (4 Ω, Front)125 W
        Dynamic Power per Channel (8 Ω, Front)85 W
        THD0.06% (20 Hz - 20 kHz, 1 Channel Driven, 50 W)0.08% (20 Hz - 20 kHz, Half power)
        Input Sensitivity and Impedance (Line)200 mV/47 kΩ200 mV/47 kΩ (1 kHz, 100 W/8 Ω)
        Rated Headphone Jack Output Level and Impedance330 Ω
        Rated Headphone Power Output80 mW (32 Ω, 1 kHz, 10% THD)
        S/N Ratio (Line, IHF-A)106 dB106 dB
        Frequency Response (Analog In)5 Hz - 100 kHz/0 dB, -3 dB (Direct)10 Hz - 100 kHz/+1 dB, -3 dB (Direct/Pure Audio)
        DSD Sampling Rates via HDMI2.8 MHz2.8 MHz
        DSD Sampling Rates via USB2.8 MHz, 5.6 MHz
        Video Input Sensitivity/Output Level and Impedance 1 Vp-p/75 Ω (Composite)1 Vp-p/75 Ω (Composite)
        Ethernet Standard10BASE-T/100BASE-TX
        Wi-Fi StandardIEEE 802.11 a/b/g/n
        Wi-Fi Terminal Frequency5 GHz, 2.4 GHz
        Bluetooth Version3.04․1 + LE
        Bluetooth Frequency2.4 GHz2.4 GHz
        HDMI TerminalType A (19-pin)
        HDMI Output Type5 V, 55 mA
        USB Terminal5 V, 0.5 A5 V, 1 A
        FM Frequency87.5 MHz - 107.9 MHz87.5 MHz - 108.0 MHz
        AM Frequency530 kHz - 1700 kHz522/530 kHz - 1611/1710 kHz
        Warranty2 Years2 Years

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

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