Onkyo TX-SR353 vs Onkyo TX-SR309

      Onkyo TX-SR353

      Onkyo TX-SR309
      68
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      60
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      North America
      USA
      Taiwan Europe and Australia Others
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      Highlights

      • 5.1 Channels
      • 5.1 Channel Processing
      • 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      • HDR10
      • 4K/60Hz Passthrough
      • Bluetooth

      Highlights

      • 5.1 Channels
      • 5.1 Channel Processing
      • 65 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)

      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-SR353
      4. Advantage of Onkyo TX-SR309
      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-SR353 to Onkyo TX-SR309 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 5 channel amplifiers with Onkyo TX-SR353's being more powerful.


      Onkyo TX-SR353 Onkyo TX-SR309

      Onkyo TX-SR353 was introduced in 2016. 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-SR309 was introduced in 2011. It is equipped with 5 channel amplifier with 65 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 1080/60p video signal.

      We evaluated Onkyo TX-SR353 and Onkyo TX-SR309 and gave them scores of 68 and 60 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-SR353

      Onkyo TX-SR309

      Amplifier
      70
      Amplifier
      71
      Audio Features
      62
      Audio Features
      64
      Video Features
      84
      Video Features
      46
      Connectivity
      62
      Connectivity
      61
      Zones
      55
      Zones
      55
      Radio
      59
      Radio
      59
      OVERALL
      68
      OVERALL
      60

      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-SR353 and Onkyo TX-SR309.

      PROS

      Onkyo TX-SR353

      Onkyo TX-SR309

      •   DSD via HDMI
      •   Auto Speaker Calibration System with Mic.
      •   HDR10
      •   New HDCP Version
      •   Bluetooth
      •   USB Input
      •   Composite Video Inputs
      •   Analog Tuner
      •   DSD via HDMI
      •   USB Input
      •   Many RCA Line Inputs
      •   Composite Video Inputs
      •   Component Video Inputs
      •   Analog Tuner

      CONS

      Onkyo TX-SR353

      Onkyo TX-SR309

      •   Few Channels - 5.1
      •   Low Power Output - 80 W
      •   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 Dolby Vision
      •   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
      •   Few Channels - 5.1
      •   Low Power Output - 65 W
      •   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 Auto Speaker Calibration System with Mic.
      •   No HDR10
      •   No HDR10+
      •   No Dolby Vision
      •   No eARC
      •   No 8K Passthrough
      •   No Wi-Fi
      •   No Bluetooth
      •   Does not Work with Amazon Alexa
      •   3 HDMI Inputs
      •   1 HDMI Outputs
      •   0 8K Input
      •   No Phono Input
      •   No RCA Pre-Outs
      •   No Ethernet
      •   No Zones
      •   No Digital Radio
      •   No Pandora
      •   No Spotify
      •   No Tidal

      3. Advantage of Onkyo TX-SR353

      This section shows those features and specifications which are the reason to choose Onkyo TX-SR353 over Onkyo TX-SR309.

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      Onkyo TX-SR353
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      Onkyo TX-SR353 vs Onkyo TX-SR309
      Higher Power Output 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) vs 65 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      Discrete Output Stage Circuitry vs
      More Advanced Auto Speaker Calibration System AccuEQ vs
      HDR10 vs
      BT.2020 color space vs
      Video Signal Passthrough up to 4K/60p (4:4:4) vs up to 1080p
      Bluetooth vs
      More HDMI Inputs 4 vs 3
      More Large Speaker Terminals 2 vs 0
      Higher Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC) 80 W (0.08% THD) vs 65 W (0.7% THD)
      Lower THD 0.06% (20 Hz - 20 kHz, 8 Ω, 1 Channel Driven, 50 W) vs 0.08% (20 Hz - 20 kHz, Half power)

      4. Advantage of Onkyo TX-SR309

      This section shows those features and specifications which are the reason to choose Onkyo TX-SR309 over Onkyo TX-SR353.

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      Onkyo TX-SR309
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      Onkyo TX-SR353 vs Onkyo TX-SR309
      Optimum Gain Volume Circuitry vs
      DSD via HDMI 2-ch vs 2-ch/Multi-ch Input
      Jitter Reduction vs PLL (Phase Locked Loop) Jitter-Cleaning Circuit Technology for S/PDIF Audio
      More Optical Inputs 1 vs 2
      More RCA Line Inputs 3 vs 6 (1 front)
      More RCA Line Outputs vs 1
      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
      Front A/V Inputs USB vs USB, Composite Video, RCA Audio
      Speaker A/B vs
      ONKYO-RI System Control vs
      RIHD (Remote Interactive Over HDMI) vs
      More Presets 30 vs 40
      More Speaker Terminals 5 vs 7
      Color-Coded Speaker Terminals vs
      H.C.P.S. (High Current Power Supply) vs Massive High Power Transformer
      Higher S/N Ratio (Line, IHF-A) 98 dB vs 100 dB
      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-SR353 Onkyo TX-SR309
        DSD via HDMI 2-ch 2-ch/Multi-ch Input
        USB Input1 (Front)1 Front
        Composite Video Inputs25 (1 front)
        Analog Tuner FM/AM FM/AM
      WEAKNESSES Onkyo TX-SR353 Onkyo TX-SR309
        Few Channels5.15.1
        Low Power Output80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)65 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
        Channel Processing5.15.1
        No Dolby Atmos
        No Dolby Atmos Height Virtualization
        No DTS:X
        No IMAX Enhanced
        No Auro 3D with Auro-Matic Upmixer
        No HDR10+
        No Dolby Vision
        No eARC
        No 8K Passthroughup to 4K/60p (4:4:4)up to 1080p
        No Wi-Fi
        Does not Work with Amazon Alexa
        Few HDMI Inputs43
        Few HDMI Outputs11
        Few 8K Inputs
        No Phono Input
        No RCA Pre-Outs0.10.1
        No Ethernet
        No Zones11
        No Digital Radio
        No Pandora
        No Spotify
        No Tidal

      6. Amplifier

      Onkyo TX-SR353 Onkyo TX-SR309

      5 channel Amplifier: Onkyo TX-SR353 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-SR309 features 5 channel power amplifier. It is rated at 65 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven).


        AMPLIFIER Onkyo TX-SR353 Onkyo TX-SR309
        Channels5.15.1
        Power Output80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)65 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
        VLSC (Vector Linear Shaping Circuitry)
        Optimum Gain Volume Circuitry
        THX™ Certification
        Continuous 6 Ω Rated
        Certified 4 Ω Performance
        Discrete Output Stage Circuitry
        3-Stage Inverted Darlington Circuitry
        PUSH-PULL Design
        Independent Block Construction (Amp/Preprocessor)
        Bi-amp Capability
        BTL (Bridged Transless or Bridging)

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        Onkyo TX-SR353
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        7. Speaker Configurations

        Onkyo TX-SR353's and Onkyo TX-SR309's amplifiers can be assigned for different speaker configurations.

        • Configurations: Available configurations are:
        • Onkyo TX-SR353: 5.1 with internal amplifier.
        • Onkyo TX-SR309: 5.1 with internal amplifier.

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        Onkyo TX-SR309
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        8. HDMI

        Onkyo TX-SR353 comes with 4 HDMI inputs. It has 1 output.

        Onkyo TX-SR309 comes with 3 HDMI inputs. It has 1 output.

        • 4K/60Hz Passthrough on Onkyo TX-SR353: All inputs pass up to 4K/60p (4:4:4) video signal.
          1080/60p Passthrough on Onkyo TX-SR309: All inputs pass up to 1080p 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% (available on Onkyo TX-SR353 only).
        • HDCP 2.2 Copy Protection: Onkyo TX-SR353 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-SR353 supports HDR10

        Onkyo TX-SR309 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-SR353 Onkyo TX-SR309
        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 1080p
        Video Signal Upscaling

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        Onkyo TX-SR353
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        9. Inputs and Outputs

        Audio

        • Analog Line Inputs and Outputs: There are 3 pair of line inputs on Onkyo TX-SR353 and 6 pair of line inputs on Onkyo TX-SR309 for connecting sources with analog outputs. There is also 1 pair of line outputs on Onkyo TX-SR309.
        • Digital Inputs: 1 optical input and 1 coaxial input are available on Onkyo TX-SR353 and 2 optical inputs and 1 coaxial input are available on Onkyo TX-SR309 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-SR353
          Inputs:           4   Outputs: 1
          8K Inputs: 0.
        • Onkyo TX-SR309
          Inputs:           3   Outputs: 1
          8K Inputs: 0.
        • Composite Video: Connect you VCR, Laserdisc player and other old video equipment with composite video cables.
        • Onkyo TX-SR353
          Inputs:           2   Outputs: 1.
        • Onkyo TX-SR309
          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. resolution on Component video connectors.
        • Onkyo TX-SR353
          Inputs:           0   Outputs: 0.
        • Onkyo TX-SR309
          Inputs:           2   Outputs: 1.

        Front A/V Inputs

        • Onkyo TX-SR353: USB
        • Onkyo TX-SR309: USB, Composite Video, RCA Audio

        Onkyo TX-SR353

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        Onkyo TX-SR309

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        TERMINALS Onkyo TX-SR353 Onkyo TX-SR309
        HDMI Inputs43
        HDMI Outputs11
        8K Inputs
        USB Input1 (Front)1 Front
        USB DC Out Port
        Optical Inputs12
        Optical Outputs
        Coaxial Inputs11
        RCA Line Inputs36 (1 front)
        RCA Line Outputs1
        XLR Line Inputs
        Phono Input
        Multi-Channel Input
        RCA Pre-Outs0.10.1
        XLR Pre-outs
        Composite Video Inputs25 (1 front)
        Composite Video Outputs12
        S-Video Inputs
        S-Video Outputs
        Component Video Inputs2
        Component Video Outputs1

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        Onkyo TX-SR309
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        10. Evaluations

        We evaluated Onkyo TX-SR353 and Onkyo TX-SR309 and gave them scores of 68 and 60 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-SR353

        Onkyo TX-SR309

        OVERALL
        68
        OVERALL
        60

        Amplifier

        GOOD
        70
        •   Few Channels - 5.1
        •   Low Power Output - 80 W
        GOOD
        71
        •   Few Channels - 5.1
        •   Low Power Output - 65 W

        Audio Features

        AVERAGE
        62
        •   Few Channels - 5.1
        •   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
        AVERAGE
        64
        •   Few Channels - 5.1
        •   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

        GOOD
        84
        •   HDR10
        •   No HDR10+
        •   No Dolby Vision
        •   No 8K Passthrough
        POOR
        46
        •   No HDR10
        •   No HDR10+
        •   No Dolby Vision
        •   No 8K Passthrough

        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
        AVERAGE
        61
        •   No eARC
        •   No Wi-Fi
        •   No Bluetooth
        •   Does not Work with Amazon Alexa
        •   3 HDMI Inputs
        •   1 HDMI Outputs
        •   0 8K Input
        •   USB Input
        •   Many RCA Line Inputs
        •   No Phono Input
        •   No RCA Pre-Outs
        •   Composite Video Inputs
        •   Component Video Inputs
        •   No Ethernet

        Zones

        AVERAGE
        55
        •   No Zones
        AVERAGE
        55
        •   No Zones

        Radio

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

        11. Specifications

        GENERAL Onkyo TX-SR353 Onkyo TX-SR309
        BrandOnkyoOnkyo
        ModelTX-SR353TX-SR309
        TypeA/V ReceiverA/V Receiver
        CountryNorth AmericaUSA
        Release Year20162011
        PredecessorOnkyo TX-SR343
        SuccessorOnkyo TX-SR373 Onkyo TX-SR313
        AMPLIFIER Onkyo TX-SR353 Onkyo TX-SR309
        Channels5.15.1
        Power Output80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)65 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
        Dynamic Audio Amplification
        Non-Phase Shift Amplifier
        WRAT (Wide Range Amplifier Technology)
        VLSC (Vector Linear Shaping Circuitry)
        Optimum Gain Volume Circuitry
        THX™ Certification
        Continuous 6 Ω Rated
        Certified 4 Ω Performance
        Discrete Output Stage Circuitry
        3-Stage Inverted Darlington Circuitry
        PUSH-PULL Design
        Independent Block Construction (Amp/Preprocessor)
        Bi-amp Capability
        BTL (Bridged Transless or Bridging)
        AUDIO FEATURES Onkyo TX-SR353 Onkyo TX-SR309
        Digital Processing Crossover Network
        Digital Signal Processing (DSP) EngineAdvanced 32-Bit Processing DSP Chip
        DACBurr-Brown
        DAC Specs192 kHz/24 Bit192 kHz/24 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
        Surround EX
        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
        Music Playback via USBFLAC, WMA, MP3, AAC
        High Resolution Music Playback via USB and/or Network
        High Resolution Audio Formats via USB
        Gapless Playback
        DSD via HDMI 2-ch 2-ch/Multi-ch Input
        DSD via USB
        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 Level Adjustment
        Dialog normalization
        Dialogue Lift
        Tone Control Front L/R Channels Front L/R Channels
        Compressed Music Enhancer Advanced Music Optimizer Advanced Music Optimizer
        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)
        Independent Subwoofer Outputs
        CALIBRATION Onkyo TX-SR353 Onkyo TX-SR309
        Auto Speaker Calibration System with Mic. AccuEQ
        VIDEO FEATURES Onkyo TX-SR353 Onkyo TX-SR309
        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 1080p
        Video Signal Upscaling
        Analog To HDMI Upconversion
        Component Video Upscaling
        Analog to Analog Video conversion
        isf Certified Calibration Control
        CONNECTIVITY Onkyo TX-SR353 Onkyo TX-SR309
        Wi-Fi
        Bluetooth
        Works with Amazon Alexa
        Chromecast Built-In
        Works with SonoS
        DTS Play-Fi
        MHL Input
        DLNA 1.5
        AirPlay
        Apple Product Connection iPod and iPhone via USB or optional DS-A4 Dock (sold separately)
        Remote App
        InstaPrevue Input Source Prevue
        TERMINALS Onkyo TX-SR353 Onkyo TX-SR309
        HDMI Inputs43
        HDMI Outputs11
        8K Inputs
        USB Input1 (Front)1 Front
        USB DC Out Port
        Optical Inputs12
        Optical Outputs
        Coaxial Inputs11
        RCA Line Inputs36 (1 front)
        RCA Line Outputs1
        XLR Line Inputs
        Phono Input
        Multi-Channel Input
        RCA Pre-Outs0.10.1
        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 InputsUSBUSB, Composite Video, RCA Audio
        Speaker A/B
        Headphone Out6.3 mm (1/4")6.3 mm (1/4")
        Detachable Power Cord
        uport
        ZONES Onkyo TX-SR353 Onkyo TX-SR309
        Number of Zones11
        Whole House Mode
        RS-232C Interface
        +12V Trigger Output0
        Remote (IR) Input/Output0 / 0
        MISCELLANEOUS Onkyo TX-SR353 Onkyo TX-SR309
        On-Screen Display Basic Overlay
        ONKYO-RI System Control
        RIHD (Remote Interactive Over HDMI)
        Pre-Pro/Learning Remote / /
        On Screen Remote Programming
        Bi-directional Remote Setup via GUI
        Activity Based Remote
        Smart Grid-Ready
        RADIO Onkyo TX-SR353 Onkyo TX-SR309
        Analog Tuner FM/AM FM/AM
        Presets3040
        Digital Radio
        Internet Radio
        Pandora
        Spotify
        Tidal
        Deezer
        Napster
        SiriusXM
        CONSTRUCTION Onkyo TX-SR353 Onkyo TX-SR309
        Solid Aluminum Front
        Speaker Terminals57
        Large Speaker Terminals20
        Color-Coded Speaker Terminals
        Transparent High-Grade Speaker Terminals
        Gold plated RCA terminals
        POWER Onkyo TX-SR353 Onkyo TX-SR309
        Power SupplyAC 120 V, 60 HzAC 120 V, 60 Hz
        Independent Power Supply
        H.C.P.S. (High Current Power Supply) Massive High Power Transformer
        Toroidal Transformer
        Power Consumption210 W3.3 A
        No Sound Power40 W
        Standby Power0.45 W0.2 W
        PHYSICAL Onkyo TX-SR353 Onkyo TX-SR309
        Dimensions (W x H x D)435 mm x 168 mm x 326.5 mm
        17-1/8" x 6-5/8" x 12-7/8"        		435 mm x 150 mm x 328 mm
        17-1/8" x 5-7/8" x 12-15/16"
        Weight8.0 kg (17 lb 10 oz)7.5 kg (16.5 lbs)
        SPECIFICATIONS Onkyo TX-SR353 Onkyo TX-SR309
        Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)80 W (0.08% THD)65 W (0.7% THD)
        Power Output (6 Ω, 1 kHz, 2 channel driven, FTC)90 W (0.9% THD)
        Power Output (6 Ω, 1 kHz, 1 channel driven, FTC)140 W (1.0% THD)
        Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA or IEC)120 W
        Rated Power Output (6 Ω, 1 kHz, 1 channel driven, IEC)100 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, 8 Ω, 1 Channel Driven, 50 W)0.08% (20 Hz - 20 kHz, Half power)
        Damping Factor60 (Front, 1 kHz, 8 Ω)
        Input Sensitivity and Impedance (Line)200 mV/47 kΩ200 mV/47 kΩ (Line)
        Rated Lineout Level and Impedance200 mV/2.2 kΩ (REC OUT)
        Maximum Lineout Level and Impedance2 V/2.2 kΩ (REC OUT)
        S/N Ratio (Line, IHF-A)98 dB100 dB
        Frequency Response (Analog In)5 Hz - 100 kHz/0 dB, -3 dB (Direct mode)20 Hz - 50 kHz/+1 dB, -3 dB (DSP bypass)
        DSD Sampling Rates via HDMI2.8 MHz2.8 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)
        Video Frequency Response5 Hz - 100 MHz/+0 dB, -3 dB (Component)
        Ethernet Standard
        FM Frequency87.5 MHz - 108.0 MHz87.5 MHz - 107.9 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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        ZKelectronics is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for website owners to earn advertising fees by advertising and linking to Amazon (.com, .co.uk, .ca, etc) and any other websites that may be affiliated with Amazon Service LLC Associates Program.