Onkyo TX-SR383 vs Pioneer SC-81

      Onkyo TX-SR383

      Pioneer SC-81
      77
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      81
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      Australia
      USA
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      Highlights

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

      Highlights

      • 7.2 Channels
      • 7.1 Channel Processing
      • 120 W (8 Ω, 1 kHz, 2 channel driven)
      • 4K/60Hz Passthrough, 4K/60Hz Upscaling
      • 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-SR383
      4. Advantage of Pioneer SC-81
      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-SR383 to Pioneer SC-81 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. Both receivers have 7 channel amplifiers.


      Onkyo TX-SR383 Pioneer SC-81

      Onkyo TX-SR383 was introduced in 2018. It is equipped with 7 channel amplifier with 80 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.

      Pioneer SC-81 was introduced in 2014. It is equipped with 7 channel amplifier with 120 W (8 Ω, 1 kHz and 2 channel driven) power per channel and is capable of 7.1 maximum channel processing. It , passes 4K/60Hz and upscales up to 4K/60p (Marvell Qdeo) video signal.

      We evaluated Onkyo TX-SR383 and Pioneer SC-81 and gave them scores of 77 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-SR383

      Pioneer SC-81

      Amplifier
      74
      Amplifier
      89
      Audio Features
      83
      Audio Features
      75
      Video Features
      90
      Video Features
      73
      Connectivity
      62
      Connectivity
      78
      Zones
      77
      Zones
      91
      Radio
      59
      Radio
      85
      OVERALL
      77
      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-SR383 and Pioneer SC-81.

      PROS

      Onkyo TX-SR383

      Pioneer SC-81

      •   Dolby Atmos
      •   DTS:X
      •   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 - 120 W
      •   Front Wide Channel Support
      •   DSD via HDMI
      •   Auto Speaker Calibration System with Mic.
      •   Analog To HDMI Upconversion
      •   Bluetooth
      •   7 HDMI Inputs
      •   USB Input
      •   RCA Pre-Outs
      •   Composite Video Inputs
      •   Component Video Inputs
      •   Ethernet
      •   3 Zones
      •   Analog Tuner
      •   Pandora
      •   Spotify

      CONS

      Onkyo TX-SR383

      Pioneer SC-81

      •   Low Power Output - 80 W
      •   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
      •   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 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
      •   Few RCA Line Inputs
      •   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-SR383

      Pioneer SC-81

      •   7.2 Channels
      •   7.1 Channel Processing
      •   2 Zones
      •   7.2 Channels
      •   7.1 Channel Processing
      •   Wi-Fi
      •   3 HDMI Outputs

      3. Advantage of Onkyo TX-SR383

      This section shows those features and specifications which are the reason to choose Onkyo TX-SR383 over Pioneer SC-81.

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      Onkyo TX-SR383
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      Onkyo TX-SR383 vs Pioneer SC-81
      Dolby Atmos vs
      Dolby Surround Upmixer vs
      DTS:X vs
      DTS Neural:X vs
      HDR10 vs
      BT.2020 color space vs
      Dolby Vision vs
      Bluetooth SBC, AAC vs via optional AS-BT100 or AS-BT200 adapters (sold separately)
      Higher S/N Ratio (Line, IHF-A) 106 dB vs 100 dB

      4. Advantage of Pioneer SC-81

      This section shows those features and specifications which are the reason to choose Pioneer SC-81 over Onkyo TX-SR383.

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      Pioneer SC-81
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      Onkyo TX-SR383 vs Pioneer SC-81
      Higher Power Output 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) vs 120 W (8 Ω, 1 kHz, 2 channel driven)
      Front Wide Channel Support vs
      Certified 4 Ω Performance vs
      Bi-amp capability vs Front
      Dolby Pro Logic vs PLIIz
      Dolby Digital EX vs
      DTS Neo vs Neo:X
      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-bit24 Audio Processing
      Virtual Speakers vs (Surround Back/Height/Wide)
      Video Signal Upscaling vs up to 4K/60p (Marvell Qdeo)
      Analog To HDMI Upconversion vs Component****, Composite
      Wi-Fi vs via optional AS-WL300 adapter (sold separately)
      MHL Input vs 1 Rear (Version 2.0)
      DLNA 1.5 vs (DMR)
      AirPlay vs AirPlay
      Remote Controll App vs iControlAV5 (for iOS and Android)
      More HDMI Inputs 4 vs 7 (1 front)
      More HDMI Outputs 1 vs 2 (1 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 Coaxial Inputs/Outputs 1 vs 2
      More RCA Line Outputs vs 1
      More RCA Pre-Outs 0.2 vs 2.2
      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
      Speaker A/B vs
      Detachable Power Cord vs
      More Zones 2 vs 3
      More Powered Zones 2 vs 2 and HDZone
      Zone 2 Outs vs RCA Pre/Line Out
      RS-232C Interface vs
      +12V Trigger Output 0 vs 2 (Main, Zone2, HDZone)
      Remote (IR) Input/Output 0 / 0 vs 1 / 1
      More Presets 30 vs 63
      Internet Radio vs vTuner
      Pandora vs
      Spotify vs
      More Speaker Terminals 7 vs 9
      More Large Speaker Terminals 2 vs 9
      Bigger Power Supply 270 W vs 290 W
      Lower THD 0.06% (20 Hz - 20 kHz, 1 Channel Driven, 50 W) vs 0.04% (1 kHz, 100 W + 100 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-SR383 Pioneer SC-81
        DSD via HDMI 2-ch 2-ch/Multi-ch Input
        Auto Speaker Calibration System with Mic. AccuEQ Advanced MCACC
        Bluetooth SBC, AAC via optional AS-BT100 or AS-BT200 adapters (sold separately)
        USB Input1 (Front)1 Front
        Composite Video Inputs22
        Analog Tuner FM/AM FM/AM
      WEAKNESSES Onkyo TX-SR383 Pioneer SC-81
        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 (4:4:4 24-bit)
      4K/60p (4:2:2 36-bit)
      4K/24p (4:4:4 36-bit)
        Does not Work with Amazon Alexa
        Few 8K Inputs
        Few RCA Line Inputs33
        No Phono Input
        No Digital Radio
        No Tidal

      6. Amplifier

      Onkyo TX-SR383 Pioneer SC-81

      7 channel Amplifier: Onkyo TX-SR383 features 7 channel power amplifier. It is rated at 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven).

      7 channel Class D3 Amplifier: Pioneer SC-81 features 7 channel power amplifier with Class D3 design. It is rated at 120 W (8 Ω, 1 kHz, 2 channel driven) and is able to drive 4 ohm speakers.


        AMPLIFIER Onkyo TX-SR383 Pioneer SC-81
        Channels7.27.2
        Power Output80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)120 W (8 Ω, 1 kHz, 2 channel driven)
        Front Wide Channel Support
        THX™ Certification
        Continuous 6 Ω Rated
        Certified 4 Ω Performance
        Bi-amp Capability Front

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        Onkyo TX-SR383
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        7. Speaker Configurations

        Onkyo TX-SR383's and Pioneer SC-81's amplifiers can be assigned for different speaker configurations.

        • Dolby Atmos Configurations: The following speaker configurations are supported for Dolby Atmos:
        • Onkyo TX-SR383: 5.2.2 with internal amplifier.
        • Pioneer SC-81: Not supported.
        • DTS:X Configurations: The following speaker configurations are supported for DTS:X:
        • Onkyo TX-SR383: The speaker configurations for DTS:X are the same as for Dolby Atmos - 5.2.2 with internal amplifier.
        • Pioneer SC-81: Not supported.
        • Configurations without height channels: There are also other speaker configurations available which do not include height channels:
        • Onkyo TX-SR383: 5.2, 7.2 with internal amplifier.
        • Pioneer SC-81: 5.2, 7.2 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-SR383: Does not support.
        • Pioneer SC-81: 7.2.
        • Bi-Amp: Pioneer SC-81 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.

        8. Immersive Audio Formats

        Dolby Atmos

        Onkyo TX-SR383 supports Dolby Atmos.

        • Dolby Surround Upmixer: Onkyo TX-SR383 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-SR383 supports DTS:X.

        • DTS Neural:X: Onkyo TX-SR383 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-SR383 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.
        AUDIO DECODING Onkyo TX-SR383 Pioneer SC-81
        Dolby Atmos
        Dolby Atmos Height Virtualization
        Dolby Atmos Music
        Dolby TrueHD
        Dolby Digital Plus
        Dolby Surround Upmixer
        Dolby Pro Logic PLIIz
        Dolby Digital EX
        DTS:X
        DTS Neural:X
        DTS Virtual:X
        DTS Neo 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

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        Pioneer SC-81
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        9. HDMI

        Onkyo TX-SR383 comes with 4 HDMI inputs. It has 1 output.

        Pioneer SC-81 comes with 7 HDMI inputs. It has 2 outputs - 1 for MAIN and 1 for MAIN/HDZONE.

        • 4K/60Hz Passthrough: On both receivers all inputs pass up to 4K/60p (4:4:4) video signal.
        • 4K Upscaling on Pioneer SC-81: It can upscale up to 4K/60p (Marvell Qdeo) from HDMI and analog sources.
        • Analog To HDMI Upconversion: Pioneer SC-81 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-SR383 only).
        • HDCP 2.2 Copy Protection: Onkyo TX-SR383 is 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-SR383 supports HDR10 and Dolby Vision.

        Pioneer SC-81 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-SR383 Pioneer SC-81
        HDR10
        HDR10+
        Dynamic HDR
        BT.2020 color space
        Dolby Vision
        HLG (Hybrid Log Gamma)
        HDBaseT Compatible
        Enhanced Audio Return Channel (eARC)
        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 (4:4:4 24-bit)
        4K/60p (4:2:2 36-bit)
        4K/24p (4:4:4 36-bit)
        Video Signal Upscaling up to 4K/60p (Marvell Qdeo)

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        Onkyo TX-SR383
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        10. Inputs and Outputs

        Audio

        • Analog Pre-Outs: Pioneer SC-81 has 2.2 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, both receivers have 7 channel processing but have only 7 channel amplifiers, so they need external amplifiers connected to the analog pre-outs in order to reach their maximum speaker configurations.
        • Analog Line Inputs and Outputs: There are 3 pair of line inputs on both receivers for connecting sources with analog outputs. There is also 1 pair of line outputs on Pioneer SC-81.
        • Digital Inputs: 1 optical input and 1 coaxial input are available on Onkyo TX-SR383 and 2 optical inputs and 2 coaxial inputs are available on Pioneer SC-81 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-SR383
          Inputs:           4   Outputs: 1
          8K Inputs: 0.
        • Pioneer SC-81
          Inputs:           7 (1 front)   Outputs: 2 (1 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-SR383
          Inputs:           2   Outputs: 1.
        • Pioneer SC-81
          Inputs:           2   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-81 supports up to 1080p (1125p) resolution on Component video connectors.
        • Onkyo TX-SR383
          Inputs:           0   Outputs: 0.
        • Pioneer SC-81
          Inputs:           2   Outputs: 1.

        Front A/V Inputs

        • Onkyo TX-SR383: USB
        • Pioneer SC-81: HDMI, USB

        Onkyo TX-SR383

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        Pioneer SC-81

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        TERMINALS Onkyo TX-SR383 Pioneer SC-81
        HDMI Inputs47 (1 front)
        HDMI Outputs12 (1 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 Outputs
        Coaxial Inputs12
        RCA Line Inputs33
        RCA Line Outputs1
        XLR Line Inputs
        Phono Input
        Multi-Channel Input
        RCA Pre-Outs0.22.2
        XLR Pre-outs
        Composite Video Inputs22
        Composite Video Outputs12
        S-Video Inputs
        S-Video Outputs
        Component Video Inputs2
        Component Video Outputs1

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        Pioneer SC-81
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        11. Evaluations

        We evaluated Onkyo TX-SR383 and Pioneer SC-81 and gave them scores of 77 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-SR383

        Pioneer SC-81

        OVERALL
        77
        OVERALL
        81

        Amplifier

        GOOD
        74
        •   7.2 Channels
        •   Low Power Output - 80 W
        EXCELLENT
        89
        •   7.2 Channels
        •   High Power Output - 120 W

        Audio Features

        GOOD
        83
        •   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
        GOOD
        75
        •   7.2 Channels
        •   Front Wide Channel Support
        •   7.1 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
        GOOD
        73
        •   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
        GOOD
        78
        •   No eARC
        •   Wi-Fi
        •   Bluetooth
        •   Does not Work with Amazon Alexa
        •   7 HDMI Inputs
        •   3 HDMI Outputs
        •   0 8K Input
        •   USB Input
        •   Few RCA Line Inputs
        •   No Phono Input
        •   RCA Pre-Outs
        •   Composite Video Inputs
        •   Component Video Inputs
        •   Ethernet

        Zones

        GOOD
        77
        •   2 Zones
        EXCELLENT
        91
        •   3 Zones

        Radio

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

        12. Specifications

        GENERAL Onkyo TX-SR383 Pioneer SC-81
        BrandOnkyoPioneer
        SeriesElite
        ModelTX-SR383SC-81
        TypeA/V ReceiverA/V Receiver
        CountryAustraliaUSA
        Release Year20182014
        PredecessorOnkyo TX-SR373 Pioneer SC-71
        SuccessorOnkyo TX-SR393 Pioneer SC-91
        AMPLIFIER Onkyo TX-SR383 Pioneer SC-81
        Channels7.27.2
        Power Output80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)120 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
        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-SR383 Pioneer SC-81
        Digital Signal Processing (DSP) EngineTexas Instruments Aureus
        DACSABRE Premier (ES9006S)
        DAC Specs192 kHz/24 Bit192 kHz/24 Bit
        Maximum Channel Processing7.17.1
        Air Studios Monitor Certification
        Dolby Atmos
        Dolby Atmos Height Virtualization
        Dolby Atmos Music
        Dolby TrueHD
        Dolby Digital Plus
        Dolby Surround Upmixer
        Dolby Pro Logic PLIIz
        Dolby Digital EX
        THX Listening Modes
        Surround EX
        DTS:X
        DTS Neural:X
        DTS Virtual:X
        DTS Neo 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-bit24 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 Surround11 + 1
        Wide Surround
        Front Stage Surround Advance
        Headphone Surround
        Virtual Speakers (Surround Back/Height/Wide)
        Virtual Depth
        Independent Subwoofer Outputs
        CALIBRATION Onkyo TX-SR383 Pioneer SC-81
        Auto Speaker Calibration System with Mic. AccuEQ Advanced MCACC
        Manual MCACC
        MCACC Memory6
        Phase Control
        Auto Phase Control Plus
        Full Band Phase Control
        Standing Wave Control
        EQ Bands9-Band (Advanced)
        Symmetric EQ
        X-Curve
        Distance Adjustment1/2 Inch
        Precision Distance
        Polarity Check
        Auto Subwoofer Crossover
        VIDEO FEATURES Onkyo TX-SR383 Pioneer SC-81
        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)up to 4K/60p (4:4:4 24-bit)
        4K/60p (4:2:2 36-bit)
        4K/24p (4:4:4 36-bit)
        Video Signal Upscaling up to 4K/60p (Marvell Qdeo)
        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
        isf Certified Calibration Control
        CONNECTIVITY Onkyo TX-SR383 Pioneer SC-81
        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 Rear (Version 2.0)
        DLNA 1.5 (DMR)
        AirPlay AirPlay
        Apple Product Connection iPod and iPhone via front USB
        Remote App iControlAV5 (for iOS and Android)
        InstaPrevue Input Source Prevue
        TERMINALS Onkyo TX-SR383 Pioneer SC-81
        HDMI Inputs47 (1 front)
        HDMI Outputs12 (1 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 Outputs
        Coaxial Inputs12
        RCA Line Inputs33
        RCA Line Outputs1
        XLR Line Inputs
        Phono Input
        Multi-Channel Input
        RCA Pre-Outs0.22.2
        XLR Pre-outs
        Composite Video Inputs22
        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
        Speaker A/B
        Headphone Out6.3 mm (1/4")6.3 mm (1/4")
        Detachable Power Cord
        uport
        adapterport
        ZONES Onkyo TX-SR383 Pioneer SC-81
        Number of Zones23
        Powered Zones 22 and HDZone
        Zone 2 OutsRCA Pre/Line Out
        Zone 3 OutsHDMI
        Whole House Mode
        RS-232C Interface
        +12V Trigger Output02 (Main, Zone2, HDZone)
        Remote (IR) Input/Output0 / 01 / 1
        MISCELLANEOUS Onkyo TX-SR383 Pioneer SC-81
        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/ Powered HD Zone
        FL Dimmer
        Function Rename
        Remote ControllerLearning Remote Control (Lumius)
        ONKYO-RI System Control
        RIHD (Remote Interactive Over HDMI)
        RADIO Onkyo TX-SR383 Pioneer SC-81
        Analog Tuner FM/AM FM/AM
        Presets3063
        Digital Radio
        Internet Radio vTuner
        Pandora
        Spotify
        Tidal
        Deezer
        Napster
        SiriusXM
        CONSTRUCTION Onkyo TX-SR383 Pioneer SC-81
        Front PanelBrushed
        Solid Aluminum Front
        ConstructionAdvanced Direct Construction
        Speaker Terminals79
        Large Speaker Terminals29
        Color-Coded Speaker Terminals
        Transparent High-Grade Speaker Terminals
        3D Space Frame Construction
        Gold plated RCA terminals
        POWER Onkyo TX-SR383 Pioneer SC-81
        Power SupplyAC 220-240 V, 50/60 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 Consumption270 W290 W
        Standby Power0.3 W0.1 W
        ECO Mode / Hybrid Standby Function
        Auto Power Standby
        PHYSICAL Onkyo TX-SR383 Pioneer SC-81
        Dimensions (W x H x D)435 mm x 168 mm x 326.5 mm
        17" x 6-1/2" x 13"        		435 mm x 185 mm x 441 mm
        17-1/8" x 7-5/16" x 17-3/8"
        Weight8.2 kg (18.1 lb 10 oz)14.3 kg (31.5 lbs)
        SPECIFICATIONS Onkyo TX-SR383 Pioneer SC-81
        Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)100 W (0.09% THD)
        Power Output (8 Ω, 1 kHz, 2 channel Driven, FTC)120 W (0.08% THD)
        Power Output (6 Ω, 1 kHz, 2 channel driven, FTC)150 W (1.0% THD)
        Rated Power Output (6 Ω, 1 kHz, 1 channel driven, IEC)135 W (1% THD)
        Power Output (4 Ω, 1 kHz, 2 channel Driven)180 W (1.0% THD)
        Multi Channel Simultaneous Drive560 W (8 Ω, 1 kHz, 1.0%)
        THD0.06% (20 Hz - 20 kHz, 1 Channel Driven, 50 W)0.04% (1 kHz, 100 W + 100 W, 8 Ω)
        Input Sensitivity and Impedance (Line)200 mV/47 kΩ365 mV/47 kΩ (Line)
        Rated Lineout Level and Impedance365 mV/2.2 kΩ (REC OUT)
        S/N Ratio (Line, IHF-A)106 dB100 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 USB2.8 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
        Wi-Fi Terminal5 V, 600 mA
        Bluetooth Version3.0
        Bluetooth Frequency2.4 GHz
        HDMI Terminal19-pin (not DVI)
        HDMI Output Type5 V, 55 mA
        HDMI Input/MHL Terminal5 V, 900 mA
        USB TerminalVer. 2.0, 5 V, 1 AUSB2.0 (Type A) 5 V, 1 A
        FM Frequency87.5 MHz - 107.9 MHz87.5 MHz - 108.0 MHz
        AM Frequency531/530 kHz - 1602/1700 kHz530 kHz - 1700 kHz
        Warranty2 Years2 Years Parts & Labor

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

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