Sony KDL-55HX823 review

This slim 3D LED TV is an awesome all-rounder

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Sony kdl 55hx823


As well as two 10W speakers in the TV's undercarriage, there's a third speaker on the back of the Sony KDL-55HX823. We obviously weren't able to test the behaviour of this trio while wall-mounted, but when placed close to a wall on its desktop stand it did seem to add a little power to our TV's sound.

Tested at loud volumes, the slim cabinet doesn't rattle, and while dialogue is handled best of all, we were reasonably impressed by the Sony KDL-55HX823's overall performance with both music and Avatar's soundtrack.


Can any television be worth this much? Although it's at least £1,000 cheaper than its similarly-specc'ed forbear from 2010, we would question how much anyone is prepared to pay for slimness. That £2,299 price tag seems steep.

Yes, there's a lot more to the KDL-55HX823 than its 27mm slim cabinet would suggest, but with perfectly respectable 50-inch plasma TVs from the likes of Samsung and Panasonic selling for half the cost, it's hard to justify – especially with Panasonic's identically sized and similarly priced TX-P55VT30B plasma TV in the running.

Tech Specs

Product TypeLED-LCD TV
Scan Format1080p
Standard Refresh Rate50 Hz
Digital TunerDVB-C (MPEG4), DVB-T (MPEG4)
Video Signal StandardHDTV 1080p
Number of HDMI Ports4
Number of SCART Interfaces1
Product FamilyBRAVIA HX823
3D Type3D
Brand NameSony
Screen Size139.7 cm (55")
Aspect Ratio16:9
Green CompliantYes
Green Compliance Certificate/AuthorityRoHS
Wireless LANYes
Ethernet TechnologyEthernet
Weight with Stand (Approximate)28.30 kg
Backlight TechnologyEdge LED
Operating Power Consumption188 W
Standby Power Consumption250 mW
RMS Output Power30 W
Electronic Program GuideYes
DLNA CertifiedYes
Digital Audio OutputYes
Height with Stand804 mm
Width with Stand1280 mm
Depth with Stand305 mm
Composite VideoYes
Component VideoYes
Network (RJ-45)Yes
PC StreamingYes
Internet AccessYes
Media PlayerYes
Enhanced Refresh Rate200 Hz
Height774 mm
Width1280 mm
Depth27 mm
Comb Filter3D Y/C
Sound SystemDolby Digital Plus, Dolby Pulse, Surround Sound
Product SeriesHX823
Maximum Resolution1920 x 1080
FeaturesWeb Browser, Sleep Timer, Picture in Picture, Picture and Picture (PAP), Favorite Channel Selection
ManufacturerSony Corporation
Product ModelKDL-55HX823
Product LineBRAVIA
Manufacturer Part NumberKDL55HX823BU
Manufacturer Website Address
Marketing Information

Put on a show of style and entertainment
Enjoy Full High Definition 3D on a TV that can't fail to impress. With cutting-edge Monolithic Design, an ultra-thin OptiContrast screen and a cable-free Wi-Fi connection to online entertainment, the only thing you need to worry about is what to watch.

Picture excellence in 2D and 3D
See lifelike Full HD quality in 2D and 3D. Get a smooth view of fast-action sports and movies with Motionflow XR 400. Enjoy a high contrast picture on a slim Dynamic Edge LED screen. Every pixel of your 2D or 3D picture is enhanced by our unique picture technology.

Package Contents
  • Remote Control
  • 2 x AAA Batteries
  • AC Power Cable
Limited Warranty1 Year
Weight (Approximate)23.20 kg