TCL C7L review: SQD technology is undeniably stunning – and affordable

The TCL C7L has a tough act to follow – last year’s C7K model took home a coveted T3 Award, and now that it’s reached end-of-life, it’s available at a very tempting price indeed.

But TCL is nothing if not intrepid, and for the C7L it’s added an exciting new Super Quantum Dot – or SQD, for short – technology, without letting the asking price get out of hand. So can lightning strike twice?

Price & Availability

On review is the 65-inch C7L – the TCL 65C7L – which is on sale now, priced at £1299 in the UK. The equivalent 65QM7L sells for $1499 in the USA, while in Australia you’re looking at AU$1999.

The C7L offers other sizes, too, with 55-, 75-, 85- and 98-inch models also available. It runs quite the gamut of scale, which is part of the benefit of SQD technology, should you be looking for 'huge yet affordable'.

Features & What's New?

The most striking thing about the 65C7L – on paper, at least – is the fact that it’s a Mini-LED TV that uses Super Quantum Dot technology (SQD).

TCL has used an HVA 2.0 Pro LCD panel (because it promises low reflectivity and superior viewing angles) backlit by a colossal number of miniscule LEDs, in order to create a panel with a massive 1152 individually controllable backlight dimming zones (for the 65-inch model).

Then it’s deployed a similarly huge number of Quantum Dots that use five, rather than the more common two, layers of material to maximise their stability and efficiency as they’re generating colour. Only one other range of TVs currently uses SQD technology: the more expensive TCL C8L.

The idea is to serve up a television with a vibrant, accurate and wide-ranging colour palette to draw from, that has class-leading backlight control, that is easy to watch off-axis, and that can hit frankly unlikely brightness levels. For this 65-inch model, TCL is claiming a massive 3000 nits of brightness, which should be easy to watch even in brightly lit rooms.

It would be a shame not to make the most of this complicated technology, of course, so TCL has made the C7L compatible with every high dynamic range standard out there – HLG, HDR10, HDR10+ and Dolby Vision (including Dolby Vision IQ and Dolby Vision Game). Naturally, the screen is certified IMAX Enhanced too.

It’s used some proprietary technologies to maximise performance, too. The ‘All-Domain Halo Control System’ ensures the remarkable brightness levels don’t result in haloing during high-contrast scenes, while ‘Deep Colour System’ keeps colours naturalistic in every circumstance. That’s the idea, anyway...

As is only reasonable, given the thoroughgoing nature of the C7L’s video specification, TCL has again turned to Bang & Olufsen to provide this TV’s audio system. Unlike the video spec, though, not many details are forthcoming about the C7L’s sound.

Yes, it’s compatible with Dolby Atmos and DTS:X spatial audio soundtracks. Yes, there are a couple of exposed bass drivers on the rear of the chassis. And, yes, there’s actually more ‘Bang & Olufsen’ branding on this product than there is ‘TCL’.

But how many drivers are there in total? What are they made of? How much power is on tap to drive them? About the only thing I’m prepared to suggest is that while the TCL can deal with spatial audio, it’s not configured to actually deliver an impression of spatial audio. If it was, we’d know about it.

Performance

If you’ve worked out how to liberate significant brightness from a screen, it must be tempting to just shove all that brightness forwards at every opportunity. But thankfully TCL is a bit more judicious and slightly less of a show-off than that.

Of course, if you’ve got brightness to spare there’s no harm in letting everyone know about it every now and then. Cue up some nice bright HDR content and there’s real intensity to the C7L’s images – but even when really going for it in brightness terms, pictures are still detailed and the nuance of texture and tone is always present.

The TCL is very good at controlling high-contrast scenes, too. Even if black tones lack the outright depth of those served up by an OLED panel, there’s no washing out or bleaching even when black and white are sharing the screen.

In between these extremes, there’s remarkable breadth and variation to the colours the C7L generates. If your content insists on punchy and primary tones, there’s real zip to them here – but equally, when it’s called upon to do ‘subtle and understated', the TCL has more insight into the subtleties of shade than pretty much any price-comparable rival.

The palette on display has a lot of variation in it, and the screen’s facility with detail retrieval and retention means that discrepancies in texture, as well as in tone, are described in full. Control of patterns is also impressive.

The TCL is a crisp and organised watch, but it never threatens to get edgy with 4K content. Its ability to control on-screen motion – a big factor during this endless summer of televised sport – is always impressive. Or, at least, it is once you’ve looked into your motion-control options in the set-up menus…

The C7L isn’t half-bad when it comes to upscaling too – up to a point, anyway. The 1080p stuff isn’t quite as detailed or quite as sharp as native 4K content, naturally – but it’s still detailed, still composed, and still moves around the screen in confident fashion.

Moving down in resolution from here can see the TCL working very hard indeed at times, and images can get a little vague and smeary. The C7L isn’t the only big 4K TV that looks a bit of a state with reruns of 80s shows on the outer reaches of the cable channels, mind you…

The C7L is a straightforwardly impressive gaming monitor, thanks in no small part to very low latency, very high refresh rates and the motion stability I’ve already discussed. The brightness and the colour fidelity it’s capable of really bring the most out of a games console.

Shortcomings where picture quality is concerned are apparent, sure, but they’re not exactly deal-breakers. Some picture noise is apparent in content that’s less than state-of-the-art, and despite what TCL seems to think the HVA 2.0 Pro panel is readily reflective of the light in your room. It’s also not the greatest watch if you’re sitting strongly off-axis – its backlighting becomes apparent and its colour fidelity takes quite a big hit too.

When it comes to sound quality, though, the TCL is rather underwhelming. Don’t get me wrong, it’s not terrible – it can reveal a fair amount of sonic detail, and it has the ability to reach a fair way down the frequency range in search of bass sounds.

This is far from the only TV that can’t muster the sound quality to match its picture quality, though. It’s default audio character is ‘thin’, and it's definitely not a fan of higher volumes – the stressed and compressed nature of its sound if you turn it up will have you turning it down again pronto.

Design & Usability

The 65-inch C7L on review is just 56mm at its deepest point, and it’s VESA-compliant too – so it’s a great candidate for wall-mounting. If you're not going down that route, though, it’s supplied with a central pedestal stand that doesn’t swivel but does raise the screen to the point that even a quite chunky soundbar will fit beneath it.

It’s predictable (and, let’s face it, quite welcome) that TCL hasn’t attempted to do anything radical with the design of the C7L. Its bezels are reasonably slender, the plastics from which it’s mostly made don’t feel anything special, and the standard of construction and finish is perfectly fine – but where ‘design’ is concerned, this is just a TV and as functional as you might imagine.

Equally predictable and, in some ways, equally welcome are the ways in which you can control the C7L and set it up to your satisfaction. TCL supplies a remote control handset that covers pretty much every eventuality – it has rather small buttons, though, no backlighting, and doesn’t look or feel even remotely special. The TCL control app is equally thorough, easier to navigate, and just as tedious to look at as the physical remote. Happily, Google Assistant is built in and, once you’ve located the /mic’ button on the remote, it’s swift and reliable in response to your prompts.

However you decide you want to control the C7L, though, you’re in charge of some nicely judged set-up menus – they make getting a workable picture quick and easy, and offer some reasonably in-depth tweaking to those who want it. It’s just as well that the menus are simple and logical, because when the screen first comes out of its box and is plugged in, its default settings are all at whatever the visual equivalent of ‘shouting’ is.

The user interface is provided by Google TV, and it’s one of the better examples of the type. It includes each and every UK TV catch-up service, including the lesser-spotted BBC iPlayer, and has plenty of options where streaming service (and other) apps are concerned. It’s easy to navigate, quite logically laid out, and doesn’t try all that hard to sell you things. All of which count as positives.

As far as connectivity goes, there are four HDMI sockets – two are at full-on 2.1 specification, and one of this pair is also eARC-enabled. So as well as VRR, ALLM, AMD FreeSync and all the rest of it, the TCL supports 4K @ 144Hz and 1080p @ 288Hz – latency in ‘Game’ mode is at around 10m/s. There are a few lesser physical connections, along with a couple of RF aerial binding posts, and Bluetooth and dual-band wi-fi are available too.

TCL C7K review: Verdict

The C7L is not only a great advert for TCL’s Super Quantum Dot technology, it’s also a great all-around picture-maker that serves up endlessly watchable, high-contrast HDR (high dynamic range) images from any source capable of delivering them.

It uses its prodigious brightness in a thoughtful and mature way, rather than just turning it up to ‘11’ the entire time – and when you add in the great colour fidelity, fine motion-handling and undeniable advantages it brings to gaming, it's certainly the real deal.

Also Consider

It’s an indication of just what an accomplished TV the TCL C7L is that the most credible price-comparable alternatives are all TVs from 2025. The C7K is one obvious option, given its even lower price, of course.

Otherwise the LG OLED C5, for instance, is now down towards TCL money – but while it has plenty to recommend it (excellent black tones, great gaming features, decent contrasts and good colour fidelity), it cannot get anywhere near the brightness of the C7L.

It’s a similar story with the Sony Bravia 7: it has impressive colour balance, good backlight control, excellent standard of build and finish and, remarkably, half-decent sound – but there’s no HDR10 or HDR10+ support and it’s rotten when viewed off-axis.