Onkyo TX-SR373 vs Pioneer SC-1523-K

      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

      • 9.2 Channels
      • 9.1 Channel Processing
      • 135 W (8 Ω, 1 kHz, 2 channel driven)
      • THX™Select™2 Plus Certified
      • 4K/30Hz Passthrough, 4K/30Hz Upscaling
      • Bluetooth, Ethernet

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

      1. Overview

      Here we are comparing Onkyo TX-SR373 to Pioneer SC-1523-K 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 Pioneer SC-1523-K has 9 channel amplifiers.


      Onkyo TX-SR373 Pioneer SC-1523-K

      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.

      Pioneer SC-1523-K was introduced in 2013. It is equipped with 9 channel amplifier with 135 W (8 Ω, 1 kHz and 2 channel driven) power per channel and is capable of 9.1 maximum channel processing. It , passes 4K/30Hz and upscales up to 4K/30p video signal.


      We evaluated Onkyo TX-SR373 and Pioneer SC-1523-K and gave them scores of 69 and 83 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

      Pioneer SC-1523-K

      Amplifier
      71
      Amplifier
      95
      Audio Features
      62
      Audio Features
      78
      Video Features
      90
      Video Features
      66
      Connectivity
      62
      Connectivity
      85
      Zones
      55
      Zones
      92
      Radio
      59
      Radio
      85
      OVERALL
      69
      OVERALL
      83

      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 Pioneer SC-1523-K.

      PROS

      Onkyo TX-SR373

      Pioneer SC-1523-K

      •   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
      •   Front Wide Channel Support
      •   THX™ Certification
      •   9.1 Channel Processing
      •   DSD via HDMI
      •   Auto Speaker Calibration System with Mic.
      •   New HDCP Version
      •   Analog To HDMI Upconversion
      •   Bluetooth
      •   9 HDMI Inputs
      •   4 HDMI Outputs
      •   USB Input
      •   RCA Pre-Outs
      •   Composite Video Inputs
      •   Component Video Inputs
      •   Ethernet
      •   4 Zones
      •   Analog Tuner
      •   Pandora
      •   Spotify

      CONS

      Onkyo TX-SR373

      Pioneer SC-1523-K

      •   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
      •   No Dolby Atmos
      •   No Dolby Atmos Height Virtualization
      •   No DTS:X
      •   No IMAX Enhanced
      •   No Auro 3D with Auro-Matic Upmixer
      •   No HDR10
      •   No HDR10+
      •   No Dolby Vision
      •   No eARC
      •   No 8K Passthrough
      •   Does not Work with Amazon Alexa
      •   0 8K Input
      •   No Phono Input
      •   No Digital Radio
      •   No Tidal


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

      AVERAGE

      Onkyo TX-SR373

      Pioneer SC-1523-K

      •   9.2 Channels
      •   Wi-Fi
      •   RCA Line Inputs

      3. Advantage of Onkyo TX-SR373

      This section shows those features and specifications which are the reason to choose Onkyo TX-SR373 over Pioneer SC-1523-K.

      Check the Price

      Onkyo TX-SR373 vs Pioneer SC-1523-K
      HDR10 vs
      BT.2020 color space vs
      Dolby Vision vs
      Video Signal Passthrough up to 4K/60p (4:4:4) vs up to 4K/30p
      Bluetooth SBC, AAC vs via optional AS-BT100 or AS-BT200 adapters (sold separately)
      Higher S/N Ratio (Line, IHF-A) 106 dB vs 101 dB
      Longer Warranty 2 Years vs 1 Year Parts & Labor

      4. Advantage of Pioneer SC-1523-K

      This section shows those features and specifications which are the reason to choose Pioneer SC-1523-K over Onkyo TX-SR373.

      Check the Price

      Onkyo TX-SR373 vs Pioneer SC-1523-K
      More Channels 5.2 vs 9.2
      Higher Power Output 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) vs 135 W (8 Ω, 1 kHz, 2 channel driven)
      Front Wide Channel Support vs
      THX™ Certification vs Select™2 Plus
      Certified 4 Ω Performance vs
      Bi-amp capability vs Front
      Higher DAC Specs 192 kHz/24 Bit vs 192 kHz/32 Bit
      More Channel Processing 5.1 vs 9.1
      Dolby Pro Logic PLII vs PLIIz
      Dolby Digital EX vs
      DTS Neo Neo:6 vs Neo:X
      DTS Express vs
      DTS-ES vs Discrete 6.1, Matrix 6.1
      Music Playback via USB WMA, MP3, AAC vs MP3, WMA, AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
      Higher Resolution Music Playback via USB vs 88.2, 96, 176.4, 192 kHz/24 bit
      DSD via HDMI 2-ch vs 2-ch/Multi-ch Input
      DSD via USB vs 2-ch Input
      DSD to PCM Converter vs
      Jitter Reduction vs plus PQLS (HDMI Bitstream/ Multi)
      DTS Dialog Control vs []
      Dialog Enhancement vs
      Dialogue Lift vs via Dialog Enhancement
      High-resolution Music Enhancer vs Hi-bit32 Audio Processing
      Virtual Speakers vs Surround Back / Height / Depth / Wide
      Video Signal Upscaling vs up to 4K/30p
      Analog To HDMI Upconversion vs Component****, Composite
      Wi-Fi vs via optional AS-WL300 adapter (sold separately)
      MHL Input vs 1 Front (Version 2.0)
      DLNA 1.5 vs
      AirPlay vs AirPlay
      Remote Controll App vs iControlAV2013 (for iOS and Android)
      More HDMI Inputs 4 vs 9 (1 front)
      More HDMI Outputs 1 vs 3 (2 for MAIN, 1 for MAIN/HDZONE)
      USB DC Out Port vs 1 Rear for AS-WL300 (5 V, 0.6 A)
      More Optical Inputs 1 vs 2
      More Optical Outputs vs 1
      More Coaxial Inputs/Outputs 1 vs 2
      More RCA Line Inputs 3 vs 5
      More RCA Line Outputs vs 1
      More RCA Pre-Outs 0.2 vs 11.2
      More Composite Video Inputs 2 vs 5 (1 front)
      More Composite Video Outputs 1 vs 2
      More Component Video Inputs vs 2
      More Component Video Outputs vs 1
      Ethernet vs
      Front A/V Inputs USB vs HDMI, USB, Composite Video
      Speaker A/B vs
      Detachable Power Cord vs
      More Zones 1 vs 4
      RS-232C Interface vs
      +12V Trigger Output 0 vs 2 (Main, Zone2, Zone 3, HDZone)
      Remote (IR) Input/Output 0 / 0 vs 2 / 1
      More Presets 30 vs 63
      Internet Radio vs vTuner
      Pandora vs
      Spotify vs
      More Speaker Terminals 5 vs 11
      More Large Speaker Terminals 2 vs 11
      Bigger Power Supply 210 W vs 330 W
      Lower THD 0.06% (20 Hz - 20 kHz, 1 Channel Driven, 50 W) vs 0.04% (1 kHz, 110 W + 110 W, 8 Ω)

      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 Pioneer SC-1523-K
        DSD via HDMI 2-ch 2-ch/Multi-ch Input
        Auto Speaker Calibration System with Mic. AccuEQ Advanced MCACC
        New HDCP Version2.22.2
        Bluetooth SBC, AAC via optional AS-BT100 or AS-BT200 adapters (sold separately)
        USB Input1 (Front)1 Front
        Composite Video Inputs25 (1 front)
        Analog Tuner FM/AM FM/AM
      WEAKNESSES Onkyo TX-SR373 Pioneer SC-1523-K
        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 Passthroughup to 4K/60p (4:4:4)up to 4K/30p
        Does not Work with Amazon Alexa
        Few 8K Inputs
        No Phono Input
        No Digital Radio
        No Tidal

      6. Amplifier

      Onkyo TX-SR373 Pioneer SC-1523-K

      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).

      9 channel Class D3 Amplifier: Pioneer SC-1523-K features 9 channel power amplifier with Class D3 design. It is rated at 135 W (8 Ω, 1 kHz, 2 channel driven) and is able to drive 4 ohm speakers.

        THX™ Select™2 Plus certification

        Pioneer SC-1523-K is THX™ Select™2 Plus certified. This means that it is ideally suited for a room where the screen-to-seat viewing distance is approximately 3 to 4 meters, and the room size is approximately 56 cubic meters.

        AMPLIFIER Onkyo TX-SR373 Pioneer SC-1523-K
        Channels5.29.2
        Power Output80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)135 W (8 Ω, 1 kHz, 2 channel driven)
        Front Wide Channel Support
        THX™ Certification Select™2 Plus
        Continuous 6 Ω Rated
        Certified 4 Ω Performance
        Bi-amp Capability Front

        Check the Price

        7. Speaker Configurations

        Onkyo TX-SR373's and Pioneer SC-1523-K's amplifiers can be assigned for different speaker configurations.

        • Configurations: Available configurations are:
        • Onkyo TX-SR373: 5.2 with internal amplifier.
        • Pioneer SC-1523-K: 5.2, 7.2, 9.2 with internal amplifier.
        • Front Wide Channel support: With the presence of two front wide speakers you can enhance the front surround stage. The following speaker configurations are available for front wide channels:
        • Onkyo TX-SR373: Does not support.
        • Pioneer SC-1523-K: 9.2.
        • Bi-Amp: Pioneer SC-1523-K is 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.

        Check the Price

        8. HDMI

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

        Pioneer SC-1523-K comes with 9 HDMI inputs. It has 3 outputs - 2 for MAIN and 1 for MAIN/HDZONE.

        • 4K/60Hz Passthrough on Onkyo TX-SR373: All inputs pass up to 4K/60p (4:4:4) video signal.
          4K/30Hz Passthrough on Pioneer SC-1523-K: All inputs pass up to 4K/30p video signal.
        • 4K Upscaling on Pioneer SC-1523-K: It can upscale up to 4K/30p from HDMI and analog sources.
        • Analog To HDMI Upconversion: Pioneer SC-1523-K 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 Onkyo TX-SR373 only).
        • 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)

        Onkyo TX-SR373 supports HDR10 and Dolby Vision.

        Pioneer SC-1523-K does not support HDR. 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 Pioneer SC-1523-K
        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/30p
        Video Signal Upscaling up to 4K/30p

        Check the Price

        9. Inputs and Outputs

        Audio

        • Analog Pre-Outs: Pioneer SC-1523-K 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.
        • Analog Line Inputs and Outputs: There are 3 pair of line inputs on Onkyo TX-SR373 and 5 pair of line inputs on Pioneer SC-1523-K for connecting sources with analog outputs. There is also 1 pair of line outputs on Pioneer SC-1523-K.
        • Digital Inputs: 1 optical input and 1 coaxial input are available on Onkyo TX-SR373 and 2 optical inputs, 1 optical output and 2 coaxial inputs are available on Pioneer SC-1523-K 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.
        • Pioneer SC-1523-K
          Inputs:
          9 (1 front)   Outputs: 3 (2 for MAIN, 1 for MAIN/HDZONE)
          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.
        • Pioneer SC-1523-K
          Inputs:
          5   Outputs: 2.
        • 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. resolution on Component video connectors.
        • Pioneer SC-1523-K supports up to 1080p (1125p) resolution on Component video connectors.
        • Onkyo TX-SR373
          Inputs:
          0   Outputs: 0.
        • Pioneer SC-1523-K
          Inputs:
          2   Outputs: 1.

        Front A/V Inputs

        • Onkyo TX-SR373: USB
        • Pioneer SC-1523-K: HDMI, USB, Composite Video

        Onkyo TX-SR373

        Image cannot be found Image cannot be found

        Pioneer SC-1523-K

        Image cannot be found Image cannot be found
        TERMINALS Onkyo TX-SR373 Pioneer SC-1523-K
        HDMI Inputs49 (1 front)
        HDMI Outputs13 (2 for MAIN, 1 for MAIN/HDZONE)
        8K Inputs
        USB Input1 (Front)1 Front
        USB DC Out Port1 Rear for AS-WL300 (5 V, 0.6 A)
        Optical Inputs12
        Optical Outputs1
        Coaxial Inputs12
        RCA Line Inputs35
        RCA Line Outputs1
        XLR Line Inputs
        Phono Input
        Multi-Channel Input
        RCA Pre-Outs0.211.2
        XLR Pre-outs
        Composite Video Inputs25 (1 front)
        Composite Video Outputs12
        S-Video Inputs
        S-Video Outputs
        Component Video Inputs2
        Component Video Outputs1

        Check the Price

        10. Evaluations

        We evaluated Onkyo TX-SR373 and Pioneer SC-1523-K and gave them scores of 69 and 83 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

        Pioneer SC-1523-K

        OVERALL
        69
        OVERALL
        83

        Amplifier

        GOOD
        71
        •   Few Channels - 5.2
        •   Low Power Output - 80 W
        EXCELLENT
        95
        •   9.2 Channels
        •   High Power Output - 135 W
        •   THX™ Certification

        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
        GOOD
        78
        •   9.2 Channels
        •   Front Wide Channel Support
        •   9.1 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
        •   HDR10
        •   No HDR10+
        •   Dolby Vision
        •   No 8K Passthrough
        AVERAGE
        66
        •   No HDR10
        •   No HDR10+
        •   No 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
        EXCELLENT
        85
        •   No eARC
        •   New HDCP Version
        •   Wi-Fi
        •   Bluetooth
        •   Does not Work with Amazon Alexa
        •   9 HDMI Inputs
        •   4 HDMI Outputs
        •   0 8K Input
        •   USB Input
        •   RCA Line Inputs
        •   No Phono Input
        •   RCA Pre-Outs
        •   Composite Video Inputs
        •   Component Video Inputs
        •   Ethernet

        Zones

        AVERAGE
        55
        •   No Zones
        EXCELLENT
        92
        •   4 Zones

        Radio

        AVERAGE
        59
        •   Analog Tuner
        •   No Pandora
        •   No Spotify
        •   No Tidal
        EXCELLENT
        85
        •   Analog Tuner
        •   Pandora
        •   Spotify
        •   No Tidal

        11. Specifications

        GENERAL Onkyo TX-SR373 Pioneer SC-1523-K
        BrandOnkyoPioneer
        ModelTX-SR373SC-1523-K
        TypeA/V ReceiverA/V Receiver
        CountryNorth AmericaUSA
        Release Year20172013
        PredecessorOnkyo TX-SR353 Pioneer SC-1522-K
        SuccessorOnkyo TX-SR383
        AMPLIFIER Onkyo TX-SR373 Pioneer SC-1523-K
        Channels5.29.2
        Power Output80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)135 W (8 Ω, 1 kHz, 2 channel driven)
        Front Wide Channel Support
        Amplifier DesignClass D3 (Direct Energy HD)
        Dynamic Audio Amplification
        Non-Phase Shift Amplifier
        VLSC (Vector Linear Shaping Circuitry)
        Optimum Gain Volume Circuitry
        THX™ Certification Select™2 Plus
        Continuous 6 Ω Rated
        Certified 4 Ω Performance
        Discrete Output Stage Circuitry
        Independent Block Construction (Amp/Preprocessor)
        Bi-amp Capability Front
        BTL (Bridged Transless or Bridging)
        AUDIO FEATURES Onkyo TX-SR373 Pioneer SC-1523-K
        Digital Signal Processing (DSP) EngineTexas Instruments Aureus
        DACESS SABRE32 Ultra
        DAC Specs192 kHz/24 Bit192 kHz/32 Bit
        Maximum Channel Processing5.19.1
        Air Studios Monitor Certification
        Dolby Atmos
        Dolby Atmos Height Virtualization
        Dolby Atmos Music
        Dolby TrueHD with Loudness Management
        Dolby Digital Plus
        Dolby Surround Upmixer
        Dolby Pro Logic PLII PLIIz
        Dolby Digital EX
        THX Listening Modes
        Surround EX
        DTS:X
        DTS Neural:X
        DTS Virtual:X
        DTS Neo Neo:6 Neo:X
        DTS-HD Master Audio
        DTS-HD High Resolution Audio
        DTS 96/24
        DTS Express
        DTS-ES Discrete 6.1, Matrix 6.1
        IMAX Enhanced
        Auro 3D with Auro-Matic Upmixer
        PCM 2-ch/Multi-ch Input 2-ch/Multi-ch Input
        Music Playback via USBWMA, MP3, AACMP3, WMA, AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
        High Resolution Music Playback via USB and/or Network 88.2, 96, 176.4, 192 kHz/24 bit
        High Resolution Audio Formats via USBApple Lossless, WAV, FLAC, AIFF, DSD
        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 plus PQLS (HDMI Bitstream/ Multi)
        Auto Level ControlMulti-Channel
        DTS Dialogue Control
        Dialog Enhancement
        Dialog normalization
        Dialogue Lift via Dialog Enhancement
        Sound Retriever Advanced (Multi-Channel / Auto with ARC)
        Sound Retriever AIR
        Digital noise Reduction
        Tone Control Front L/R Channels Front L/R Channels
        Compressed Music Enhancer Advanced Music Optimizer Advanced Sound Retriever
        High-resolution Music Enhancer Hi-bit32 Audio Processing
        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
        Pure Direct Mode
        Auto Surround
        Optimum Surround
        Advanced Surround15+1 Mode DSP
        Wide Surround
        Front Stage Surround Advance
        Headphone Surround
        Virtual SpeakersSurround Back / Height / Depth / Wide
        Virtual Depth
        Independent Subwoofer Outputs
        CALIBRATION Onkyo TX-SR373 Pioneer SC-1523-K
        Auto Speaker Calibration System with Mic. AccuEQ Advanced MCACC
        Manual MCACC
        MCACC Memory6
        Auto Phase Control Plus
        Full Band Phase Control
        Standing Wave Control
        EQ Bands9-Band
        Symmetric EQ
        X-Curve
        Distance Adjustment1/2 inch
        Precision Distance
        Polarity Check
        Auto Subwoofer Crossover
        PC Display
        VIDEO FEATURES Onkyo TX-SR373 Pioneer SC-1523-K
        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/30p
        Video Signal Upscaling up to 4K/30p
        Analog To HDMI Upconversion Component****, Composite
        Component Video Upscaling
        Analog to Analog Video conversion
        Component Video Maximum Resolution1080p (1125p)
        Stream Smoother
        Pure Cinema
        Video Parameter AdjustmentsYNR, CNR, BNR, MNR, Detail, Brightness, Contrast, Hue, Chroma, Black Level
        Triple HD noise Reduction
        Super Resolution
        isf Certified Calibration Control
        CONNECTIVITY Onkyo TX-SR373 Pioneer SC-1523-K
        Wi-Fi via optional AS-WL300 adapter (sold separately)
        Bluetooth SBC, AAC via optional AS-BT100 or AS-BT200 adapters (sold separately)
        Works with Amazon Alexa
        Chromecast Built-In
        Works with SonoS
        DTS Play-Fi
        MHL Input 1 Front (Version 2.0)
        DLNA 1.5
        AirPlay AirPlay
        Apple Product Connection iPod, iPhone and iPad via front USB
        Remote App iControlAV2013 (for iOS and Android)
        InstaPrevue Input Source Prevue
        TERMINALS Onkyo TX-SR373 Pioneer SC-1523-K
        HDMI Inputs49 (1 front)
        HDMI Outputs13 (2 for MAIN, 1 for MAIN/HDZONE)
        8K Inputs
        USB Input1 (Front)1 Front
        USB DC Out Port1 Rear for AS-WL300 (5 V, 0.6 A)
        Optical Inputs12
        Optical Outputs1
        Coaxial Inputs12
        RCA Line Inputs35
        RCA Line Outputs1
        XLR Line Inputs
        Phono Input
        Multi-Channel Input
        RCA Pre-Outs0.211.2
        XLR Pre-outs
        Composite Video Inputs25 (1 front)
        Composite Video Outputs12
        S-Video Inputs
        S-Video Outputs
        Component Video Inputs2
        Component Video Outputs1
        Ethernet
        Ethernet Switch
        PC In
        Front A/V InputsUSBHDMI, USB, Composite Video
        Speaker A/B
        Headphone Out6.3 mm (1/4")6.3 mm (1/4")
        Detachable Power Cord
        uport
        adapterport
        ZONES Onkyo TX-SR373 Pioneer SC-1523-K
        Number of Zones14
        Powered Zones 2
        Zone 2 OutsComposite Video, RCA Pre/Line Out + Subfoower
        Zone 3 OutsRCA Pre/Line Out
        Zone 4 OutsHDMI
        Whole House Mode
        RS-232C Interface
        +12V Trigger Output02 (Main, Zone2, Zone 3, HDZone)
        Remote (IR) Input/Output0 / 02 / 1
        MISCELLANEOUS Onkyo TX-SR373 Pioneer SC-1523-K
        On-Screen Display via HDMIGraphical User Interface (GUI) with Album Artwork (HDMI only)
        Multi-Zone On-Screen Display
        AV Navigator Built-in
        IP Control
        PreAmp Mode
        Versatile Speaker ConfigurationSurround Back/ Front Height/ Front Wide/ Front Bi-Amp/ Zone 2/ B-Speaker
        FL Dimmer
        Function Rename
        Remote ControllerLearning Remote Control
        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 Pioneer SC-1523-K
        Analog Tuner FM/AM FM/AM
        Presets3063
        Digital Radio
        Internet Radio vTuner
        Pandora
        Spotify
        Tidal
        Deezer
        Napster
        SiriusXM
        CONSTRUCTION Onkyo TX-SR373 Pioneer SC-1523-K
        ChassisInsulated Dual Chassis
        Front PanelBrushed
        Solid Aluminum Front
        ConstructionAdvanced Direct Construction
        Speaker Terminals511
        Large Speaker Terminals211
        Color-Coded Speaker Terminals
        Transparent High-Grade Speaker Terminals
        3D Space Frame Construction
        Gold plated RCA terminals
        POWER Onkyo TX-SR373 Pioneer SC-1523-K
        Power SupplyAC 120 V, 60 HzAC 120 V, 60 Hz
        Independent Power Supply
        H.C.P.S. (High Current Power Supply)
        Toroidal Transformer
        Low Leakage Flux Power Transformer
        Transformer Stabilizer
        Power Consumption210 W330 W
        Standby Power0.35 W0.1 W
        ECO Mode / Hybrid Standby Function
        Auto Power Standby
        PHYSICAL Onkyo TX-SR373 Pioneer SC-1523-K
        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 185 mm x 441 mm
        17-1/8" x 7-5/16" x 17-3/8"
        Weight8.0 kg (17 lb 10 oz)15,0 kg (33 lb 1 oz)
        SPECIFICATIONS Onkyo TX-SR373 Pioneer SC-1523-K
        Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)80 W (0.08% THD)
        Power Output (8 Ω, 1 kHz, 2 channel Driven, FTC)135 W (0.08% THD)
        Power Output (6 Ω, 1 kHz, 2 channel driven, FTC)175 W (1.0% THD)
        Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA or IEC)155 W (10% THD)
        Rated Power Output (6 Ω, 1 kHz, 1 channel driven, IEC)140 W (1% THD)
        Power Output (4 Ω, 1 kHz, 2 channel Driven)220 W (1.0% THD)
        Multi Channel Simultaneous Drive760 W (8 Ω, 1 kHz, 1.0%)
        THD0.06% (20 Hz - 20 kHz, 1 Channel Driven, 50 W)0.04% (1 kHz, 110 W + 110 W, 8 Ω)
        Input Sensitivity and Impedance (Line)200 mV/47 kΩ390 mV/47 kΩ (Line)
        Rated Lineout Level and Impedance390 mV/2.2 kΩ (REC OUT)
        S/N Ratio (Line, IHF-A)106 dB101 dB
        Frequency Response (Analog In)5 Hz - 100 kHz/0 dB, -3 dB (Direct)
        DSD Sampling Rates via HDMI2.8 MHz2.8 MHz
        DSD Sampling Rates via USB5.6 MHz, 2.8 MHz
        Video Input Sensitivity/Output Level and Impedance 1 Vp-p/75 Ω (Composite)1 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-TX
        Bluetooth Version3.0
        Bluetooth Frequency2.4 GHz
        HDMI TerminalType A (19-pin)19-pin (not DVI)
        HDMI Output Type5 V, 55 mA5 V, 55 mA
        HDMI Input/MHL Terminal5 V, 900 mA
        USB Terminal5 V, 0.5 AUSB2.0 (Type A) 5 V, 2,1 A
        FM Frequency87.5 MHz - 107.9 MHz87.5 MHz - 108 MHz
        AM Frequency530 kHz - 1700 kHz530 kHz - 1700 kHz
        Warranty2 Years1 Year Parts & Labor

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

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