Onkyo TX-SR333

    Highlights

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

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

    1. Overview

    Onkyo TX-SR333 was introduced in 2014. It is equipped with 5 channel amplifier with 65 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) power per channel and is capable of 5.1 maximum channel processing. It passes 4K/60Hz video signal.

    We evaluated the a/v receiver and gave 67 overall score out of 100. Our ranking system is based on the amplifier specifications, audio and video features, connectivity, multizone capabilities, radio and many other details.

    Amplifier
    71
    Audio Features
    68
    Video Features
    66
    Connectivity
    66
    Zones
    64
    Radio
    59
    OVERALL
    67

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


    Here is a history of the series, where you can view and compare the main specifications of the receivers.

    Evolution of the series
    Model Year Chann. Power Dolby Atmos DTS:X HDR10 HDR10+ Dolby Vision Pass. Price
    TX-SR393 Image cannot be found 2019 5.2 80 W 4K
    TX-SR383 Image cannot be found 2018 7.2 80 W 4K
    TX-SR373 Image cannot be found 2017 5.2 80 W 4K
    TX-SR353 Image cannot be found 2016 5.1 80 W 4K
    TX-SR343 Image cannot be found 2015 5.1 65 W 4K
    TX-SR333 Image cannot be found 2014 5.1 65 W 4K
    TX-SR313 Image cannot be found 2012 5.1 65 W 1080p
    TX-SR309 Image cannot be found 2011 5.1 65 W 1080p

    You can view their side-by-side comparison here: Onkyo TX-SR393 vs TX-SR383 vs TX-SR373 vs TX-SR353 vs TX-SR343 vs TX-SR333.

    2. Pros and Cons

    In this section we present pros and cons of Onkyo TX-SR333.

    PROs

    •   DSD via HDMI
    •   Bluetooth
    •   USB Input
    •   Many RCA Line Inputs
    •   Composite Video Inputs
    •   Component Video Inputs
    •   Analog Tuner
    •   Independent Power Supply

    CONs

    •   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
    •   Does not Work with Amazon Alexa
    •   1 HDMI Outputs
    •   0 8K Input
    •   No Phono Input
    •   No RCA Pre-Outs
    •   No Ethernet
    •   No Digital Radio
    •   No Pandora
    •   No Spotify
    •   No Tidal
    •   Bluetooth 2․1 + EDR

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

    AVERAGE

    •   6 HDMI Inputs
    •   2 Zones

    3. Onkyo 2014 Lineup

    In 2014 Onkyo released 7 new receivers. Here is the lineup:

    Onkyo 2014 Lineup
    ModelChannelsPowerMax. Ch. Proc.Pre OutsImmersive AudioZones Price
    TX-NR3030 Image cannot be found 11.2135 W11.111.4Dolby Atmos3
    TX-NR1030 Image cannot be found 9.2135 W11.111.4Dolby Atmos3
    TX-NR838 Image cannot be found 7.2130 W7.17.2Dolby Atmos3
    TX-NR737 Image cannot be found 7.2110 W7.1Dolby Atmos3
    TX-NR636 Image cannot be found 7.295 W7.1Dolby Atmos2
    TX-NR535 Image cannot be found 5.265 W5.12
    TX-SR333 Image cannot be found 5.165 W5.12

    You can view their side-by-side comparison here: Onkyo TX-NR3030 vs TX-NR1030 vs TX-NR838 vs TX-NR737 vs TX-NR636 vs TX-NR535.

    4. Changes from the TX-SR313

    Onkyo TX-SR333 has replaced TX-SR313. Here we present differences between these two models.

    UPGRADES Onkyo TX-SR333 vs Onkyo TX-SR313
    Music Playback via USB FLAC, WAV, Apple Lossless, mp3, Ogg, DSD vs FLAC, WMA, MP3, AAC
    Higher Resolution Music Playback via USB up to 192 kHz vs
    High Resolution Audio Formats via USB FLAC, WAV, Apple Lossless, DSD vs
    Gapless Playback vs
    DSD via USB 2-ch Input vs
    Video Signal Passthrough up to 4K/60p (YCbCr 4:2:0) vs up to 1080p
    Bluetooth vs
    AirPlay AirPlay via optional Onkyo RI Dock DS-A5 (sold separately) vs
    InstaPrevue Input Source Prevue vs
    More HDMI Inputs 6 vs 4
    More Coaxial Inputs/Outputs 2 vs 1
    More RCA Line Inputs 7 (1 front) vs 6 (1 front)
    More Zones 2 vs 1
    Pre-Pro/Learning Remote / vs /
    Independent Power Supply 2 vs
    Higher Dynamic Power per Channel, 8 Ω, Front) 85 W vs 80 W
    DOWNGRADES Onkyo TX-SR333 vs Onkyo TX-SR313
    Optimum Gain Volume Circuitry vs
    Less Optical Inputs 1 vs 2
    Less Composite Video Inputs 4 (1 front) vs 5 (1 front)
    Less Composite Video Outputs 1 vs 2
    Less Component Video Inputs 1 vs 2
    Front A/V Inputs Composite Video, RCA audio vs USB, Composite Video, RCA Audio
    Speaker A/B vs
    Less Speaker Terminals 5 vs 7
    Smaller Power Supply 3.2 A vs 3.4 A
    Higher THD 0.7% (20 Hz - 20 kHz, Half power) vs 0.08% (20 Hz - 20 kHz, half power)
    Lower Maximum Lineout Level and Impedance 1.0 V/2.2 kΩ vs 2 V/2.2 kΩ (REC OUT)

    For more detailed comparison between the models please visit Onkyo TX-SR333 vs TX-SR313.

    5. Amplifier

    5 channel Amplifier

    Onkyo TX-SR333 features 5 channel power amplifier. It is rated at 65 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven).

    • WRAT (Wide Range Amp Technology): Onkyo TX-SR333 features Onkyo’s Wide Range Amp Technology (WRAT) circuit layout that prevents phase shifting by pushing the roll-off point higher than the listening-level frequency. Amplifying sound without phase shift creates an uncommonly well-focused and realistic audio image. If phase shift occurs and signal timing is not accurate, then neither is the resulting audio image.
    AMPLIFIER
    Channels5.1
    Power Output65 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)

    6. Speaker Configurations

    Onkyo TX-SR333's 5 channel amplifier can be assigned for different speaker configurations.

    • Configurations: Available configurations are:
    • 5.1 with internal amplifier.

    7. HDMI

    Onkyo TX-SR333 features 6 HDMI inputs. It has 1 output.

    • 4K/60Hz Passthrough: All inputs pass up to 4K/60p (YCbCr 4:2:0) video signal.
    • 3D Ready: Onkyo TX-SR333 is able to pass 3D video through HDMI.


    VIDEO FEATURES
    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 (YCbCr 4:2:0)
    Video Signal Upscaling

    8. Multi-zone Playback

    Onkyo TX-SR333 offers multi-zone playback which allows you to play different input sources in 2 different rooms.


    Zone 2

    • Audio Line Output: If you have a dedicated integrated amplifier for Zone 2 you can connect it to the a/v receiver via line outs by sending fixed signal and then control volume on the Zone 2 amplifier.
    ZONES
    Number of Zones2
    Powered Zones
    Zone 2 OutsRCA Line Out
    Whole House Mode
    RS-232C Interface
    +12V Trigger Output0
    Remote (IR) Input/Output0 / 0

    9. Inputs and Outputs

    Audio

    • Analog Line Inputs and Outputs: There are 7 line inputs and 1 line output for analog audio connection.
    • Digital Inputs: 1 optical input and 2 coaxial inputs are available for digital audio connection.
    • Headphone Output: There is a 6.3 mm (1/4") headphone output jack on the front panel.

    Video

    • HDMI:
    • Inputs: 6   Outputs: 1
      8K Inputs: 0
    • Composite Video: Connect you VCR, Laserdisc player and other old video equipment with composite video cables.
    • Inputs: 4   Outputs: 1
    • 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.
    • Inputs: 1   Outputs: 1

    Front A/V Inputs

    • Composite Video, RCA audio
    Image cannot be found
    Image cannot be found
    TERMINALS
    HDMI Inputs6
    HDMI Outputs1
    8K Inputs
    USB Input1 (Rear)
    USB DC Out Port
    Optical Inputs1
    Optical Outputs
    Coaxial Inputs2
    RCA Line Inputs7 (1 front)
    RCA Line Outputs1
    XLR Line Inputs
    Phono Input
    Multi-Channel Input
    RCA Pre-Outs0.1
    XLR Pre-outs
    Composite Video Inputs4 (1 front)
    Composite Video Outputs1
    S-Video Inputs
    S-Video Outputs
    Component Video Inputs1
    Component Video Outputs1

    10. Replaced by TX-SR343

    In 2015 Onkyo TX-SR333 was replaced by Onkyo TX-SR343. Let us now have a look at some important differences between Onkyo TX-SR333 and its successor.

    UPGRADES Onkyo TX-SR343 vs Onkyo TX-SR333
    DTS-ES vs
    Phase-Matching Bass Boost for Deep Bass and Clear Mid-Range vs
    Analog To HDMI Upconversion Component**, Composite vs
    USB DC Out Port 5 V, 1 A vs
    More Optical Inputs 2 vs 1
    More Component Video Inputs 2 vs 1
    Smart Grid-Ready vs
    More Large Speaker Terminals 2 vs 0
    Bigger Power Supply 3.8 A vs 3.2 A
    Lower THD 0.08% (20 Hz - 20 kHz, half power) vs 0.7% (20 Hz - 20 kHz, Half power)
    DOWNGRADES Onkyo TX-SR343 vs Onkyo TX-SR333
    AirPlay vs AirPlay via optional Onkyo RI Dock DS-A5 (sold separately)
    InstaPrevue Input Source Prevue vs
    Less HDMI Inputs 4 vs 6
    USB Input vs 1 (Rear)
    Less Coaxial Inputs/Outputs 1 vs 2
    Less RCA Line Outputs vs 1
    Less Composite Video Inputs 3 (1 front) vs 4 (1 front)
    Less Composite Video Outputs vs 1
    Less Component Video Outputs vs 1
    Less Zones 1 vs 2
    Color-Coded Speaker Terminals vs
    Lower Damping Factor 40 (Front, 1 kHz, 8 Ω) vs 60 (Front, 1 kHz, 8 Ω)

    For more detailed comparison between the models please visit Onkyo TX-SR333 vs TX-SR343.

    11. Evaluation

    We evaluate Onkyo TX-SR333 and give score of 67 out of 100. We also give separate scores for 6 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.


    OVERALL
    67

    Amplifier

    GOOD
    71

    We give Onkyo TX-SR333 a score of 71 for Amplifier features.

    •   Few Channels - 5.1
    •   Low Power Output - 65 W
    •   Independent Power Supply

    Audio Features

    AVERAGE
    68

    We give Onkyo TX-SR333 a score of 68 for Audio Features features.

    •   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

    AVERAGE
    66

    We give Onkyo TX-SR333 a score of 66 for Video Features features.

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

    Connectivity

    AVERAGE
    66

    We give Onkyo TX-SR333 a score of 66 for Connectivity features.

    •   No eARC
    •   No Wi-Fi
    •   Bluetooth
    •   Does not Work with Amazon Alexa
    •   6 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
    •   Bluetooth 2․1 + EDR

    Zones

    AVERAGE
    64

    We give Onkyo TX-SR333 a score of 64 for Zones features.

    •   2 Zones

    Radio

    AVERAGE
    59

    We give Onkyo TX-SR333 a score of 59 for Radio features.

    •   Analog Tuner
    •   No Pandora
    •   No Spotify
    •   No Tidal

    12. Specifications

    GENERAL
    BrandOnkyo
    ModelTX-SR333
    TypeA/V Receiver
    CountryTaiwan
    Release Year2014
    PredecessorOnkyo TX-SR313
    SuccessorOnkyo TX-SR343
    AMPLIFIER
    Channels5.1
    Power Output65 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
    Digital Signal Processing (DSP) Engine32-bit DSP
    DACBurr-Brown
    DAC Specs192 kHz/24 Bit
    Maximum Channel Processing5.1
    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
    Music Playback via USBFLAC, WAV, Apple Lossless, mp3, Ogg, DSD
    High Resolution Music Playback via USB and/or Network up to 192 kHz
    High Resolution Audio Formats via USBFLAC, WAV, Apple Lossless, DSD
    Gapless Playback
    DSD via HDMI 2-ch/Multi-ch Input
    DSD via USB 2-ch Input
    DSD to PCM Converter
    USB DAC
    Jitter Reduction PLL (Phase Locked Loop) Jitter-Cleaning Circuit Technology for S/PDIF Audio
    DTS Dialogue Control
    Dialog Enhancement
    Dialog Level Adjustment
    Dialog normalization
    Dialogue Lift
    Tone Control Front L/R Channels
    Compressed Music Enhancer Advanced Music Optimizer (bluetooth included)
    High-resolution Music Enhancer
    THX Processing Mode
    Audyssey Dynamic EQ
    Audyssey Dynamic Volume
    Audyssey LFC
    Audyssey Sub EQ HT
    Audyssey DSX
    Phase-Matching Bass Boost
    Direct Mode
    Pure Audio Mode
    Pure Direct Analog Path Mode
    Virtual Speakers T-D (Theater-Dimensional)
    Independent Subwoofer Outputs
    CALIBRATION
    Auto Speaker Calibration System with Mic.
    VIDEO FEATURES
    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 (YCbCr 4:2:0)
    Video Signal Upscaling
    Analog To HDMI Upconversion
    Component Video Upscaling
    Analog to Analog Video conversion
    isf Certified Calibration Control
    CONNECTIVITY
    Wi-Fi
    Bluetooth
    Works with Amazon Alexa
    Chromecast Built-In
    Works with SonoS
    DTS Play-Fi
    MHL Input
    DLNA 1.5
    AirPlay AirPlay via optional Onkyo RI Dock DS-A5 (sold separately)
    Apple Product Connection iPod and iPhone via optional Onkyo RI Dock DS-A5 (sold separately)
    Remote App
    InstaPrevue Input Source Prevue
    TERMINALS
    HDMI Inputs6
    HDMI Outputs1
    8K Inputs
    USB Input1 (Rear)
    USB DC Out Port
    Optical Inputs1
    Optical Outputs
    Coaxial Inputs2
    RCA Line Inputs7 (1 front)
    RCA Line Outputs1
    XLR Line Inputs
    Phono Input
    Multi-Channel Input
    RCA Pre-Outs0.1
    XLR Pre-outs
    Composite Video Inputs4 (1 front)
    Composite Video Outputs1
    S-Video Inputs
    S-Video Outputs
    Component Video Inputs1
    Component Video Outputs1
    Ethernet
    Ethernet Switch
    PC In
    Front A/V InputsComposite Video, RCA audio
    Speaker A/B
    Headphone Out6.3 mm (1/4")
    Detachable Power Cord
    uport
    ZONES
    Number of Zones2
    Powered Zones
    Zone 2 OutsRCA Line Out
    Whole House Mode
    RS-232C Interface
    +12V Trigger Output0
    Remote (IR) Input/Output0 / 0
    MISCELLANEOUS
    On-Screen Display
    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
    Analog Tuner FM/AM
    Presets40
    Digital Radio
    Internet Radio
    Pandora
    Spotify
    Tidal
    Deezer
    Napster
    SiriusXM
    CONSTRUCTION
    Solid Aluminum Front
    Speaker Terminals5
    Large Speaker Terminals0
    Color-Coded Speaker Terminals
    Transparent High-Grade Speaker Terminals
    Gold plated RCA terminals
    POWER
    Power SupplyAC 120 V, 60 Hz
    Independent Power Supply2
    H.C.P.S. (High Current Power Supply) Massive High Power Transformer
    Toroidal Transformer
    Power Consumption3.2 A
    No Sound Power55 W
    Standby Power0.2 W
    ECO Mode / Hybrid Standby Function
    PHYSICAL
    Dimensions (W x H x D)435 mm x 150 mm x 321 mm
    17-1/8" x 5-7/8" x 12-5/8"
    Weight7.6 kg (16.8 lbs)
    SPECIFICATIONS
    Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)65 W (0.7% THD)
    Power Output (6 Ω, 1 kHz, 2 channel driven, FTC)90 W (0.7% 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
    THD0.7% (20 Hz - 20 kHz, Half power)
    Damping Factor60 (Front, 1 kHz, 8 Ω)
    Input Sensitivity and Impedance (Line)200 mV/47 kΩ (Line)
    Rated Lineout Level and Impedance100 mV/2.2 kΩ
    Maximum Lineout Level and Impedance1.0 V/2.2 kΩ
    S/N Ratio (Line, IHF-A)100 dB
    Frequency Response (Analog In)5 Hz - 100 kHz/+1 dB, -3 dB (Direct Mode)
    DSD Sampling Rates via HDMI2.8 MHz
    DSD Sampling Rates via USB2.8 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)
    Video Frequency Response5 Hz - 100 MHz/+0 dB, -3 dB (Component)
    Ethernet Standard
    Bluetooth Version2․1 + EDR
    Bluetooth Frequency2.4 GHz
    FM Frequency87.5 MHz - 107.9 MHz
    AM Frequency522/530 kHz - 1611/1710 kHz
    Warranty2 Years

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

    Discussion

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