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Sony Bravia KDL-40NX713 - 3D Upgrade and Other Features

John Archer

By John Archer



  • Recommended by TR
Sony Bravia KDL-40NX713


Our Score:


To make the TV 3D capable, you’ll need a £50 TMR-BR100 3D transmitter, together with as many pairs of TDG-BR100B active shutter glasses as you need/can afford at around £100 a pop.

To some extent, we don’t have a problem with making 3D an optional extra if it helps Sony get sets like the 40NX713 out at a decent price. But of course, even if there are only two of you in your household you’ll have to add £250 to the 40NX713’s thankfully quite aggressive basic cost. Plus you’ll have to accommodate an external 3D transmitter somewhere near the TV.

Going back to BIV, regular readers will know that we’re pretty enamoured of its concentration on providing a bounty of video streaming services - the sort of online content that we suspect people most want to receive on a 'connected' TV.

Highlights include the Demand 5 Channel Five and BBC iPlayer catch up services, LoveFilm, the Qriocity Film store offering full movies to rent or buy, YouTube, Sony World of Television, Sky News, a FIFA World Cup highlights 'channel', and much more besides.

December 23rd, moreover, marked the launch of yet another substantial new BIV feature: Qriocity Music Unlimited. This is essentially a subscription-based package for both bringing your music together across multiple devices (PC, TV, portable music player, etc), and allowing you to access music stored on premium 'channels'.

Two levels of subscription are available, and given the fairly substantial nature of the new service, we’ll be doing a dedicated review of it in the next week or so. Suffice it to say that it’s a surprisingly ambitious and well-presented service, but one that feels just a touch expensive at the moment with its £9.99 top-tier sub.

The rest of the 40NX713’s spec sheet makes for impressive reading. The full HD screen is illuminated by an edge LED system, able to deliver a, um, 'Mega' dynamic contrast level. Video processing, meanwhile, comes predominantly from Sony’s Bravia Engine 3 system and MotionFlow 100Hz PRO.

It’s nice to see, too, that the 40NX713 allows you to fine tune the MotionFlow system, with three different presets: Standard for 'normal' viewing; Clear for use with high-speed content with maintained brightness; and ClearPlus, for fast-speed content with reduced brightness (to limit the obviousness of any unwanted side effects associated with the MotionFlow engine).

The only significant deficiency of the 40NX713’s spec sheet is that it doesn’t go as far as we’d like with its picture fine-tuning tools. Sure, there are gamma and white balance adjustments, a clear white mode, a contrast enhancer, a black corrector and Sony’s Live Colour processing. But there isn’t a full colour management system to rival those found on most recent sets from Panasonic, LG, and Toshiba, to name but three.

Since the 40NX713 is a 2D set only in its out-of-the-box state, let’s start by assessing its 2D performance. Which is actually excellent.

Our single favourite thing about it is its black level response. For unlike so many recent edge LED TVs, the 40NX713 doesn’t suffer significantly with inconsistent backlight issues. Even during the very darkest scenes the picture looks evenly illuminated - provided, at least, that you’ve subdued the set’s backlight, brightness and contrast settings. You can see some minor inconsistencies if you’ve got the image blaring out using one of the set’s over-aggressive presets, but under sensible calibrated conditions, the 40NX713’s black level response is one of the best we’ve seen from an edge LED to date.


January 20, 2011, 9:12 pm

I have the predecessor for this TV, the NX803 (which is a great TV), which I use with the silver 'bar' stand.

Whilst the stand makes the TV look great - I definitely noticed a deterioration of sound quality. This took the sound quality from adequate (7/10) to poor (5/10). This can be addressed with the use of a separate speaker system, of course.

RE: Silver Stand for the TV


January 21, 2011, 3:17 pm

I find it interesting that this model has no backlighting issues, What Hifi have a review of the 40EX713 which is also an Edge-LED model gets a lot of negative comments because of uneven backlighting/backlight bleed. Sounds like there's a bit of a lottery with Sony's quality depending on which specific model you go for.

I think it does incline me to caution before going near their TV's!

Although it looks like their 2011 range is going to feature some direct LED local dimming models which sounds worth holding off for.


January 22, 2011, 8:38 pm

@John - where did you find this at £699? PRC direct have it for £789 and only as an In Store purchase.

I've just seen it in store at John Lewis and it does look good....tough call between this and the much pricier Philips 9705


February 8, 2011, 4:10 pm

TR - still can't find it for £699 :-)

Geoff Richards

February 9, 2011, 4:23 pm

@gdawg304 - I have done some digging on your behalf. This model was definitely for sale as low as £699 over the Christmas period, and as is the case with all our reviews, was for sale at that price on the day of publication.

Of course, prices do fluctuate and are subject to the usual forces of supply and demand. I'm sure it will come back down in price over time from the current levels.


February 10, 2011, 6:55 pm

@ Geoff - this may be the case, however on date of review publication the retailer which you listed as £699 online (PRC) was selling it for £789 and *only* as an in store purchase.

Not that I'm implying the review is attempting to mislead as I know that's not the case at all!! Just annoying as for £699 I'd have probably bought one, but for £1k+, no way.

Looking around, a lot of places seem to be increasing the price of this TV, Marks & Spencers for example bumped it up from £999 to £1199, right before Sony refresh their range for 2011 - doesn't seem like the time to be raising prices on "old" tech.

On another note I'm seeing the Panasonic P42V20 rapidly dropping in price and available for as low as £829 which seems like a damn good price for that TV


June 8, 2011, 11:12 pm

I have the sound bar and contrary to what is suggested in the review, the sound is diverted from the TV speakers to the speakers in the sound bar, therefore there is no deterioration of the TV speaker sound as these are not used when the sound bar is in use. However the sound is improved immeasurably with the use of the sound bar, giving a far superior, fuller sound.

Could you please post your final calibration settings alluded to in the review?
Many thanks and keep up the good work

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