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

    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.


    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.

    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

    Onkyo 2014 Lineup

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

    Onkyo 2014 Lineup
    ModelChannelsPowerMax. Ch. Proc.Pre OutsRoom Corr.Immersive AudioZones Price
    TX-NR3030 Image cannot be found 11.2135 W11.111.4 AccuEQDolby Atmos3
    TX-NR1030 Image cannot be found 9.2135 W11.111.4 AccuEQDolby Atmos3
    TX-NR838 Image cannot be found 7.2130 W7.17.2 AccuEQDolby Atmos3
    TX-NR737 Image cannot be found 7.2110 W7.1 AccuEQDolby Atmos3
    TX-NR636 Image cannot be found 7.295 W7.1 AccuEQDolby Atmos2
    TX-NR535 Image cannot be found 5.265 W5.1 AccuEQ2
    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.

    Predecessor

    Here we are comparing Onkyo TX-SR333 to its predecessor TX-SR313 and displaying the major changes.

    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 Power Output (6 Ω, 1 kHz, 1 channel driven, IEC) 110 W (0.9% THD) vs 100 W (1% THD)
    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.

    Successor

    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 Power Output (6 Ω, 1 kHz, 1 channel driven, IEC) 100 W (1% THD) vs 110 W (0.9% THD)
    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.

    Audio Section

    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)

    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.
    Onkyo TX-SR333
    DECODING
    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

    Sound Processing

    • Advanced Music Optimizer: Compressed music enhancement in Onkyo TX-SR333 is done by Onkyo’s Advanced Music Optimizer. While MP3 or AAC files may sound fine through the headphones of your portable digital player, the limitations of these files can be exposed when played back through a quality home entertainment system. This is because a significant amount of high-frequency bit information is lost during the file-compression process. To counter this, Onkyo has designed the Advanced Music Optimizer to compensate for lost bit information and improve the quality of compressed audio signals. This results in a clearer and more expansive sound. Also included in this technology is a loudness correction feature that further improves the audio character of compressed files.

    Video Section

    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.
    Onkyo TX-SR333
    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

    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

    Check out the receivers which are frequently compared to Onkyo TX-SR333.

    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
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    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

    Onkyo TX-SR333 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


    For a full specification list please go to the specifications page:

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