Onkyo TX-SR309 vs Onkyo TX-NR509

      Onkyo TX-SR309

      Onkyo TX-NR509
      61
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      67
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      USA Taiwan Europe and Australia
      Others
      USA Taiwan Europe and Australia
      Others
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      Highlights

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

      Highlights

      • 5.1 Channels
      • 5.1 Channel Processing
      • 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      • 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-SR309
      4. Advantage of Onkyo TX-NR509
      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-SR309 to Onkyo TX-NR509 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-SR309's being less powerful.


      Onkyo TX-SR309 Onkyo TX-NR509

      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.

      Onkyo TX-NR509 was introduced in 2011. 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 1080/60p video signal.

      We evaluated Onkyo TX-SR309 and Onkyo TX-NR509 and gave them scores of 61 and 67 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-SR309

      Onkyo TX-NR509

      Amplifier
      71
      Amplifier
      75
      Audio Features
      64
      Audio Features
      67
      Video Features
      46
      Video Features
      46
      Connectivity
      61
      Connectivity
      73
      Zones
      55
      Zones
      64
      Radio
      66
      Radio
      91
      OVERALL
      61
      OVERALL
      67

      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-SR309 and Onkyo TX-NR509.

      PROS

      Onkyo TX-SR309

      Onkyo TX-NR509

      •   DSD via HDMI
      •   USB Input
      •   Many RCA Line Inputs
      •   Composite Video Inputs
      •   Component Video Inputs
      •   Analog Tuner
      •   DSD via HDMI
      •   Auto Speaker Calibration System with Mic.
      •   USB Input
      •   Many RCA Line Inputs
      •   RCA Pre-Outs
      •   Composite Video Inputs
      •   Component Video Inputs
      •   Ethernet
      •   Analog Tuner
      •   Digital Radio
      •   Pandora
      •   Spotify

      CONS

      Onkyo TX-SR309

      Onkyo TX-NR509

      •   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
      •   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 HDR10+
      •   No Dolby Vision
      •   No eARC
      •   No 8K Passthrough
      •   No Bluetooth
      •   Does not Work with Amazon Alexa
      •   4 HDMI Inputs
      •   1 HDMI Outputs
      •   0 8K Input
      •   No Phono Input
      •   No Tidal


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

      AVERAGE

      Onkyo TX-SR309

      Onkyo TX-NR509

      •   Wi-Fi
      •   2 Zones

      3. Advantage of Onkyo TX-SR309

      This section shows those features and specifications which are the reason to choose Onkyo TX-SR309 over Onkyo TX-NR509.

      Check the Price

      Onkyo TX-SR309
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      Onkyo TX-SR309 vs Onkyo TX-NR509
      Speaker A/B vs
      More Speaker Terminals 7 vs 5

      4. Advantage of Onkyo TX-NR509

      This section shows those features and specifications which are the reason to choose Onkyo TX-NR509 over Onkyo TX-SR309.

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      Onkyo TX-NR509
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      Onkyo TX-SR309 vs Onkyo TX-NR509
      Higher Power Output 65 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) vs 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      Discrete Output Stage Circuitry vs
      Dolby Pro Logic PLII vs PLIIx
      Dolby Digital EX vs
      DTS-ES vs Discrete 6.1, Matrix 6.1
      Music Playback via USB FLAC, WMA, MP3, AAC vs FLAC, WAV, WMA, WMA Lossless, Ogg, MP3, LPCM, AAC
      Higher Resolution Music Playback via USB vs up to 96 kHz
      High Resolution Audio Formats via USB vs FLAC, WAV, WMA Lossless, LPCM, AAC
      Audyssey Dynamic EQ vs
      Audyssey Dynamic Volume vs
      Pure Audio Mode vs
      More Advanced Auto Speaker Calibration System vs Audyssey 2EQ
      Wi-Fi vs via Front USB (optional UWF-1 sold separately)
      DLNA 1.5 vs
      Remote Controll App vs iPod touch/iPhone
      More HDMI Inputs 3 vs 4
      More Coaxial Inputs/Outputs 1 vs 2
      More RCA Pre-Outs 0.1 vs 2.1 (Surround Back and Sub)
      Ethernet vs
      uport vs
      More Zones 1 vs 2
      Pre-Pro/Learning Remote / vs /
      Digital Radio vs DAB/DAB+ Radio via optional UP-DT1 Tuner (sold separately)
      Internet Radio vs vTuner
      Pandora vs
      Spotify vs
      Napster vs
      More Large Speaker Terminals 0 vs 5
      Bigger Power Supply 330 W vs 410 W
      Higher Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC) 65 W (0.7% THD) vs 80 W (0.7% THD)
      Higher Power Output (6 Ω, 1 kHz, 2 channel driven, FTC) 90 W (0.9% THD) vs 110 W (0.9% THD)
      Higher Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA) 120 W vs 160 W
      Higher Power Output (6 Ω, 1 kHz, 1 channel driven, IEC) 100 W (1% THD) vs 130 W (1% THD)
      Higher Dynamic Power per Channel, 3 Ω, Front) 160 W vs 180 W
      Higher Dynamic Power per Channel, 4 Ω, Front) 125 W vs 160 W
      Higher Dynamic Power per Channel, 8 Ω, Front) 85 W vs 100 W

      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-SR309 Onkyo TX-NR509
        DSD via HDMI 2-ch/Multi-ch Input 2-ch/Multi-ch Input
        USB Input1 Front1 Front
        Many RCA Line Inputs6 (1 front)6 (1 front)
        Composite Video Inputs5 (1 front)5 (1 front)
        Component Video Inputs22
        Analog Tuner FM/AM with RDS FM/AM with RDS
      WEAKNESSES Onkyo TX-SR309 Onkyo TX-NR509
        Few Channels5.15.1
        Low Power Output65 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)80 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 HDR10+
        No Dolby Vision
        No eARC
        No 8K Passthroughup to 1080pup to 1080p
        No Bluetooth
        Does not Work with Amazon Alexa
        Few HDMI Inputs34
        Few HDMI Outputs11
        Few 8K Inputs
        No Phono Input
        No Tidal

      6. Amplifier

      Onkyo TX-SR309 Onkyo TX-NR509

      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).

      5 channel Amplifier: Onkyo TX-NR509 features 5 channel power amplifier. It is rated at 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven).


        AMPLIFIER Onkyo TX-SR309 Onkyo TX-NR509
        Channels5.15.1
        Power Output65 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
        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)

        Check the Price

        Onkyo TX-SR309
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        7. Speaker Configurations

        Onkyo TX-SR309's and Onkyo TX-NR509's amplifiers can be assigned for different speaker configurations.

        • Configurations: Available configurations are:
        • Onkyo TX-SR309: 5.1 with internal amplifier.
        • Onkyo TX-NR509: 5.1 with internal amplifier.

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        Onkyo TX-NR509
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        8. HDMI

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

        Onkyo TX-NR509 comes with 4 HDMI inputs. It has 1 output.

        • 1080/60p Passthrough: On both receivers all inputs pass up to 1080p video signal.
        • 3D Ready: Both receivers are able to pass 3D video through HDMI.


        VIDEO FEATURES Onkyo TX-SR309 Onkyo TX-NR509
        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 1080pup to 1080p
        Video Signal Upscaling

        Check the Price

        Onkyo TX-SR309
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        9. Inputs and Outputs

        Audio

        • Analog Pre-Outs: Onkyo TX-NR509 has 2.1 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 5 channel processing but have only 5 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 6 pair of line inputs on both receivers for connecting sources with analog outputs. There are also 1 pair of line outputs on the receivers.
        • Digital Inputs: 2 optical inputs and 1 coaxial input are available on Onkyo TX-SR309 and 2 optical inputs and 2 coaxial inputs are available on Onkyo TX-NR509 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-SR309
          Inputs:           3   Outputs: 1
          8K Inputs: 0.
        • Onkyo TX-NR509
          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-SR309
          Inputs:           5   Outputs: 2.
        • Onkyo TX-NR509
          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-SR309
          Inputs:           2   Outputs: 1.
        • Onkyo TX-NR509
          Inputs:           2   Outputs: 1.

        Front A/V Inputs

        • Onkyo TX-SR309: USB, Composite Video, RCA Audio
        • Onkyo TX-NR509: USB, Composite Video, RCA Audio

        Onkyo TX-SR309

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        Onkyo TX-NR509

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        TERMINALS Onkyo TX-SR309 Onkyo TX-NR509
        HDMI Inputs34
        HDMI Outputs11
        8K Inputs
        USB Input1 Front1 Front
        USB DC Out Port
        Optical Inputs22
        Optical Outputs
        Coaxial Inputs12
        RCA Line Inputs6 (1 front)6 (1 front)
        RCA Line Outputs11
        XLR Line Inputs
        Phono Input
        Multi-Channel Input
        RCA Pre-Outs0.12.1 (Surround Back and Sub)
        XLR Pre-outs
        Composite Video Inputs5 (1 front)5 (1 front)
        Composite Video Outputs22
        S-Video Inputs
        S-Video Outputs
        Component Video Inputs22
        Component Video Outputs11

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        Onkyo TX-NR509
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        10. Evaluations

        We evaluated Onkyo TX-SR309 and Onkyo TX-NR509 and gave them scores of 61 and 67 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-SR309

        Onkyo TX-NR509

        OVERALL
        61
        OVERALL
        67

        Amplifier

        GOOD
        71
        •   Few Channels - 5.1
        •   Low Power Output - 65 W
        GOOD
        75
        •   Few Channels - 5.1
        •   Low Power Output - 80 W

        Audio Features

        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
        AVERAGE
        67
        •   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

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

        Connectivity

        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
        GOOD
        73
        •   No eARC
        •   Wi-Fi
        •   No Bluetooth
        •   Does not Work with Amazon Alexa
        •   4 HDMI Inputs
        •   1 HDMI Outputs
        •   0 8K Input
        •   USB Input
        •   Many RCA Line Inputs
        •   No Phono Input
        •   RCA Pre-Outs
        •   Composite Video Inputs
        •   Component Video Inputs
        •   Ethernet

        Zones

        AVERAGE
        55
        •   No Zones
        AVERAGE
        64
        •   2 Zones

        Radio

        AVERAGE
        66
        •   Analog Tuner
        •   No Pandora
        •   No Spotify
        •   No Tidal
        EXCELLENT
        91
        •   Analog Tuner
        •   Pandora
        •   Spotify
        •   No Tidal

        11. Specifications

        GENERAL Onkyo TX-SR309 Onkyo TX-NR509
        BrandOnkyoOnkyo
        ModelTX-SR309TX-NR509
        TypeA/V ReceiverA/V Receiver
        CountryOthersOthers
        Release Year20112011
        SuccessorOnkyo TX-SR313 Onkyo TX-NR515
        AMPLIFIER Onkyo TX-SR309 Onkyo TX-NR509
        Channels5.15.1
        Power Output65 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
        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-SR309 Onkyo TX-NR509
        Digital Processing Crossover Network
        Digital Signal Processing (DSP) EngineAdvanced 32-Bit Processing DSP ChipAdvanced 32-Bit Processing DSP Chip
        DACBurr-BrownBurr-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 PLIIx
        Dolby Digital EX
        Surround EX
        DTS:X
        DTS Neural:X
        DTS Virtual:X
        DTS Neo Neo:6 Neo:6
        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 USBFLAC, WMA, MP3, AACFLAC, WAV, WMA, WMA Lossless, Ogg, MP3, LPCM, AAC
        High Resolution Music Playback via USB and/or Network up to 96 kHz
        High Resolution Audio Formats via USBFLAC, WAV, WMA Lossless, LPCM, AAC
        Gapless Playback
        DSD via HDMI 2-ch/Multi-ch Input 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 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) T-D (Theater-Dimensional)
        Independent Subwoofer Outputs
        CALIBRATION Onkyo TX-SR309 Onkyo TX-NR509
        Auto Speaker Calibration System with Mic. Audyssey 2EQ
        Audyssey App Support
        VIDEO FEATURES Onkyo TX-SR309 Onkyo TX-NR509
        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 1080pup to 1080p
        Video Signal Upscaling
        Analog To HDMI Upconversion
        Component Video Upscaling
        Analog to Analog Video conversion
        isf Certified Calibration Control
        CONNECTIVITY Onkyo TX-SR309 Onkyo TX-NR509
        Wi-Fi via Front USB (optional UWF-1 sold separately)
        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) iPod and iPhone via USB or optional UP-A1 Dock (sold separately)
        Remote App iPod touch/iPhone
        InstaPrevue Input Source Prevue
        TERMINALS Onkyo TX-SR309 Onkyo TX-NR509
        HDMI Inputs34
        HDMI Outputs11
        8K Inputs
        USB Input1 Front1 Front
        USB DC Out Port
        Optical Inputs22
        Optical Outputs
        Coaxial Inputs12
        RCA Line Inputs6 (1 front)6 (1 front)
        RCA Line Outputs11
        XLR Line Inputs
        Phono Input
        Multi-Channel Input
        RCA Pre-Outs0.12.1 (Surround Back and Sub)
        XLR Pre-outs
        Composite Video Inputs5 (1 front)5 (1 front)
        Composite Video Outputs22
        S-Video Inputs
        S-Video Outputs
        Component Video Inputs22
        Component Video Outputs11
        Ethernet
        Ethernet Switch
        PC In
        Front A/V InputsUSB, Composite Video, RCA AudioUSB, 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-SR309 Onkyo TX-NR509
        Number of Zones12
        Powered Zones
        Zone 2 OutsRCA Line Out
        Whole House Mode
        RS-232C Interface
        +12V Trigger Output
        Remote (IR) Input/Output
        MISCELLANEOUS Onkyo TX-SR309 Onkyo TX-NR509
        On-Screen Display Basic Overlay 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-SR309 Onkyo TX-NR509
        Analog Tuner FM/AM with RDS FM/AM with RDS
        Presets4040
        Digital Radio DAB/DAB+ Radio via optional UP-DT1 Tuner (sold separately)
        Internet Radio vTuner
        Pandora
        Spotify
        Tidal
        Deezer
        Napster
        SiriusXM
        CONSTRUCTION Onkyo TX-SR309 Onkyo TX-NR509
        Solid Aluminum Front
        Speaker Terminals75
        Large Speaker Terminals05
        Color-Coded Speaker Terminals
        Transparent High-Grade Speaker Terminals
        Gold plated RCA terminals
        POWER Onkyo TX-SR309 Onkyo TX-NR509
        Power SupplyAC 220-240 V, 50/60 HzAC 220-240 V, 50/60 Hz
        Independent Power Supply
        H.C.P.S. (High Current Power Supply) Massive High Power Transformer Massive High Power Transformer
        Toroidal Transformer
        Power Consumption330 W410 W
        No Sound Power35 W (230 V)/40 W (240 V)45 W (230 V)/50 W (240 V)
        Standby Power0.3 W0.3 W
        PHYSICAL Onkyo TX-SR309 Onkyo TX-NR509
        Dimensions (W x H x D)435 mm x 150 mm x 328 mm
        17-1/8" x 5-7/8" x 12-15/16"        		435 mm x 173.5 mm x 328 mm
        17-1/8" x 6-13/16" x 12-15/16"
        Weight7.5 kg (16.5 lbs)9.3 kg (20.5 lbs)
        SPECIFICATIONS Onkyo TX-SR309 Onkyo TX-NR509
        Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)65 W (0.7% THD)80 W (0.7% THD)
        Power Output (6 Ω, 1 kHz, 2 channel driven, FTC)90 W (0.9% THD)110 W (0.9% THD)
        Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA or IEC)120 W160 W
        Rated Power Output (6 Ω, 1 kHz, 1 channel driven, IEC)100 W (1% THD)130 W (1% THD)
        Dynamic Power per Channel (3 Ω, Front)160 W180 W
        Dynamic Power per Channel (4 Ω, Front)125 W160 W
        Dynamic Power per Channel (8 Ω, Front)85 W100 W
        THD0.08% (20 Hz - 20 kHz, Half power)0.08% (20 Hz - 20 kHz, Half power)
        Damping Factor60 (Front, 1 kHz, 8 Ω)60 (Front, 1 kHz, 8 Ω)
        Input Sensitivity and Impedance (Line)200 mV/47 kΩ (Line)200 mV/47 kΩ (Line)
        Rated Lineout Level and Impedance200 mV/2.2 kΩ (REC OUT)200 mV/2.2 kΩ (REC OUT)
        Maximum Lineout Level and Impedance2 V/2.2 kΩ (REC OUT)2 V/2.2 kΩ (REC OUT)
        S/N Ratio (Line, IHF-A)100 dB100 dB
        Frequency Response (Analog In)20 Hz - 50 kHz/+1 dB, -3 dB (DSP bypass)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 (Component Y)
        0.7 Vp-p/75 Ω (Component PB/CB, PR/CR)
        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)5 Hz - 100 MHz/+0 dB, -3 dB (Component)
        Ethernet Standard100BASE-TX
        FM Frequency87.5 MHz - 108.0 MHz87.5 MHz - 108.0 MHz
        AM Frequency522/530 kHz - 1611/1710 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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