Onkyo TX-SR333 AV Receiver


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Onkyo's TX-SR333 is  brings the remarkable high quality AV experience that Onkyo are renowned for, and places it into an accessible price category as an entry-lebel AV receiver with six 4k/60Hz capable HDMI inputs. The unit is also able to decode Dolby True HD and DTS-HD master audio, so all of your games, films and shows look and sound truly immaculate. 

Fitted with Onkyo-specific 'Wide Range Amplifier Technology', or WRAT for short, the TXSR33 is able to replicate a sound response similar to that of its competitors in far higher price points. The integrated DAC within the machine allows for clean and undisturbed signal decoding, savouring the beauty that is lossless Dolby TrueHD and DTS-HD Master audio.

Both AM and FM radio tuning is supported RDS and Radiotext, while a USB input allows for memory flash drives to feed music directly to the receiver. this USB port will also read compatible Apple devices.

High quality Bluetooth 2.1 codec is also built into the unit, so you are able to stream essentially any audio from a smartphone, tablet, PC or other device with a crisp and powerful playback.



  • 4K/60 Hz-Capable HDMI® Terminals for Ultra HD Entertainment
  • Bluetooth Version 2.1 + EDR Capability (Compatible Profile: A2DP v1.2, AVRCP v1.3)
  • Advanced Music Optimizer to Improve Compressed Digital Audio Quality (Now with Bluetooth Included)
  • Input Source Preview with InstaPrevue™ Technology
  • Phase-Matching Bass Boost for Deep Bass and Clear Mid-Range
  • Zone 2 Line-Out for Distributed Audio Playback in Another Room


  • 100 W/Ch (6 O, 1 kHz, 1% THD, 1 Channel Driven, IEC); 120 W/Ch (6 O, 1 kHz, 1 Channel Driven, JEITA)
  • WRAT (Wide Range Amplifier Technology)
  • H.C.P.S. (High Current Power Supply) Massive High Power Transformer
  • Discrete Output Stage Circuitry
  • PLL (Phase Locked Loop) Jitter-Cleaning Circuit Technology for S/PDIF Audio


  • HDMI Support for 4K/60 Hz, 3D, Audio Return Channel, DeepColor™, x.v.Color™, LipSync, Dolby® TrueHD, DTS-HD Master Audio™, DVD-Audio, Super Audio CD, Multichannel PCM, and CEC
  • Dolby® TrueHD and DTS-HD Master Audio™ Decoding
  • TI Burr-Brown 192 kHz/24-Bit DACs for All Channels
  • Advanced 32-Bit DSP Chip
  • 4 DSP Modes for Gaming: Rock, Sports, Action, and RPG
  • Theater-Dimensional Virtual Surround Function
  • CinemaFILTER™
  • Pure Audio Mode
  • Direct Mode
  • Double Bass Function
  • Non-Scaling Configuration
  • A-Form Listening Mode Memory


  • 6 HDMI Inputs and 1 Output
  • USB Port (Rear) for Mass Storage Class USB Memory Audio Playback Capability (MP3, FLAC, WAV, Ogg Vorbis, Apple Lossless, DSD)
  • HDTV-Capable (720p/1080i) Component Video Switching (1 Input and 1 Output)
  • 4 Composite Video Inputs (1 Front/3 Rear) and 1 Output
  • 3 Digital Audio Inputs (1 Optical and 2 Coaxial)
  • 7 Analog Audio Inputs (1 Front/6 Rear)
  • Subwoofer Pre-Out
  • Color-Coded Speaker Terminals
  • Headphone Jack


  • Crossover Adjustment for Each Channel (40/50/60/70/80/90/100/120/150/200 Hz)
  • A/V Sync Control (Up to 400 ms in 10 ms Steps at 48 kHz)
  • Overlaid On-Screen Display (OSD) via HDMI with Quick Set-Up and Home Menu
  • Hybrid Standby Function (HDMI Passthrough Only)
  • Tone Control (Bass/Treble) for Front L/R Channels
  • 3-Mode Display Dimmer (Normal/Dim/Dimmer)
  • RDS (PS/RT/PTY/TP) (European Model Only)
  • 40 FM/AM Random Presets
  • RIHD (Remote Interactive Over HDMI) for System Control
  • Full-Function RI (Remote Interactive) Remote Control

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Providing your item is in stock, the order is usually dispatched within 24 hours. Please remember that postage and packing is completely free for orders over £50*. Out of stock items will be dispatched as soon as they become available, out of stock items can take between 4 to 21 days for dispatch.

Deliveries usually take 1-3 working days. The majority of orders are sent via our couriers'; Interlink Express on a next-day-delivery service. Smaller, low value or light-weight items are normally posted using Royal Mail Recorded or Royal Mail Special Delivery.

Once your product has been dispatched, you will be notified via email and sent a unique consignment number, you can use this number at http://www.interlinkexpress.com to check the status of your delivery. If you have provided a mobile telephone number, Interlink's Predict service will notify you by text (and email) of a one-hour delivery window. If the window they suggest is inconvenient, you can change the date of delivery to a later one via text or email.

*We ship free of charge to mainland UK addresses, excluding the Scottish Highlands or 'Out-Of-Reach' Scottish locations. Please consult the post-codes below to see if your location falls within this category. If you are still unsure, please contact us on 01432 354921. We also ship to Northern Ireland, Channel Islands, Scilly Isles, Scottish Isles and Scottish Highlands, however delivery to these locations will incur a charge and can only be sent via a 2-day service.

Shipping CostsMainland UK (Next-Day)Offshore/Out-of-reach (2-day)Northern Ireland, Channel Islands, Isle of Man, Scottish Islands, Scilly IslandsRepublic of Ireland (2-day)
Under £50 Orders £7.50 £12.50 £15.00
Over £50 Orders FREE £19.99 £29.99
Surcharge Orders £50.00 £69.99 £79.99
Saturday Delivery £12.99 N/A N/A
Sunday Delivery £12.99 N/A N/A
Saturday by 12 Delivery £35 N/A N/A


Post codes exempt from the free delivery service include:

Scottish Highlands Post Codes: AB30-38, AB41-42, AB44-56, FK17-99, G83, IV1-28, IV30-39, IV52-54, IV63, KW1-14, PA21-33, PA34-40, PH15-26, PH31-41, PH49-50
Islands Post Codes: HS1-9, IV40-51, IV55-56, KA27-28, KW15-17, PA20, PA41-49, PA60-78, PH42-44, ZE1-3
Northern Ireland: All BT postcodes
Channel Islands Post Codes: JE, GY
Scilly Isles Post Codes: TR21, TR22, TR23, TR24, TR25