Hisense A6N vs TCL C75B

The quality of the HDR effect on A6N unfortunately does not impress. The peak brightness of 250 nits does not allow for spectacular effects, and HDR appears rather dull, resembling more of a regular SDR. This state of affairs will not satisfy more demanding users who wish to enjoy high-quality film materials. Additionally, the coverage of the colour palette is also not very impressive – a DCI-P3 level of 82% is an average result that does not fully allow one to enjoy vibrant colours in HDR materials.

During our test, the TCL C75B "spat out" around 380 nits of brightness. We recorded similar results while watching most of the films we tested. They can be considered average – the television does not perform poorly in this segment, but around 400 nits is definitely too low to fully experience the magic of HDR effects. Of course, these results are better than those of budget models, which can achieve almost half the brightness values. However, for HDR enthusiasts seeking stronger lighting effects and greater realism, the C75B may prove insufficient. On the positive side, it's worth mentioning the DCI-P3 colour gamut coverage of 95%. This is a very good result that easily suffices to enjoy a wide range of colours in content available on popular streaming platforms. Vivid and rich colours are definitely a strong point of this model.

In the category of colour reproduction, the model Hisense A6N in Filmmaker Mode leaves much to be desired. Although the name of the mode suggests that we should expect faithful reproduction of cinematic colours, the reality is different – the television has significant issues with image quality. The problem with white balance is particularly noticeable, both for HD and 4K materials, which is heavily disrupted by the dominance of blue. This results in artificial, cold tones, which can clearly be seen in the comparison photo below. The Colour Checker test further confirms these errors, which are exacerbated by low colour gamut coverage.

The gamma brightness characteristic shows a serious problem in maintaining a level of 2.4 – the graph is significantly below the reference value, which leads to excessive image brightness and washed-out blacks. The EOTF curve for 4K materials also indicates brightness issues – at the beginning, there is a significant spike, which results from the television's excessive brightness, negatively impacting image quality. Such image characteristics do not allow one to fully enjoy watching films and require manual correction.

TCL C75B offers several picture modes, but in our opinion, the best choice is the “Film” mode. Although its settings are quite decent, the television struggles with some colour reproduction issues. In our tests, we noticed that the image had a noticeably pinkish tint compared to what could be considered accurate. This effect was particularly evident in skin tones, which appeared unnaturally flushed. The main culprit for this phenomenon turned out to be the white balance, characterised by an excessive amount of blue and red in both HD and 4K HDR materials.

An additional problem was the way brightness was rendered. The gamma, which is responsible for the visibility of details in darker materials, was definitely boosted, causing details in the darkest parts of the screen to be invisible, disappearing into complete blackness (e.g., the lower part of the screen in the comparison photo - around the actress's ear). Similarly, the situation was reflected in the EOTF curve, which was below the correct value, suggesting that we might encounter a similar problem in 4K HDR content.

Thanks to our experience and the right tools, we decided to take matters into our own hands and see how much we could extract from this model after professional calibration. We describe the details in the next section.

Hisense A6N offers options and tools in its settings to adjust many image parameters that we have utilized. When it comes to white balance, we managed to eliminate the excess blue colour – this effect is clearly visible in the comparison photo below, where the boy in the image seemingly "comes to life". A significant improvement can also be noticed in the gamma brightness characteristics – the television no longer has serious issues with excessively brightening the entire image. Unfortunately, the same cannot be said for 4K content, where the EOTF curve could not be fully corrected due to the exceptionally low brightness of this model. For HDR materials, we apply dynamic tone mapping, which allows for the recovery of many details despite the boosting of mid-tones in the image. For this television, this provides more benefits than drawbacks. The errors that are still visible in the colour palette test and Colour Checker for 4K materials stem from the low colour gamut coverage and are difficult to eliminate due to the characteristics of the television. Nevertheless, the tonal quality of the image is significantly better, which is why we recommend calibrating the factory settings, which are far from ideal.

After calibrating the TCL C75B, it has clearly improved in terms of colour reproduction. Although the television does not offer many options for adjusting the white balance, we managed to enhance its settings quite significantly. As a result, the image is no longer excessively pink, and the colours now look much more natural and harmonious.

The gamma jump, which was previously an issue, has not completely disappeared, but we have managed to reduce it considerably. This has made details in dark scenes more visible – both in HD and 4K HDR materials.

Unfortunately, the lack of local dimming is still noticeable. The "blooming black" effect remains, but that is a limitation of the display itself. Nevertheless, the colours after calibration look far better, and the image is much more enjoyable to watch.

Let's check how A6N performs with low-quality materials. When it comes to smoothing tonal transitions, the lack of posterisation reduction or smoothing of tonal transitions in low-quality materials such as television or DVD can be noticeable for more demanding viewers. In terms of digital processing, the model is presented correctly, and the branches are devoid of characteristic jaggedness – the image is very plastic and soft, which may appeal to those who prefer this style of image.

TCL C75B has a tone transition smoothing function, but unfortunately, we cannot commend it. Regardless of the selected level – low or high – tone transitions in older materials remained visible, as if the function wasn't working at all. It's hard to say anything positive about it, as in practice it seems completely useless.

The image scaling is better. The television performs quite decently, although on thinner elements, like branches in the background, you can notice slight jaggedness. However, this is not something that significantly interferes with daily viewing.

Unfortunately, a bigger problem turned out to be overscan, which is cutting off the edges of the image. In our tests, there were instances where news tickers or other elements near the edge of the screen were cut off. This is definitely something to pay attention to, especially if we use the television for watching news programmes or content with text on the screen.

The 60 Hz panel in the Hisense A6N will likely satisfy those who enjoy watching films, as the television offers an "ultra motion smoother," allowing us to adjust the motion smoothness – either more choppy or more fluid, cinematic. When it comes to motion blur, it performs rather average – noticeable blur is evident, especially on dark backgrounds, which is quite a typical feature in this range of televisions.

The TCL C75B definitely has something to offer gamers. The television is equipped with a panel that can display images with a refresh rate of 144 Hz in 4K, and even 240 Hz in Full HD. These are really impressive results, especially for a model from the entry-level range.

In addition, there are features for improving fluidity and reducing motion blur in films. The "Motion" option allows precise adjustment of the effect on a 10-point scale, which offers great personalisation possibilities - everyone can set the fluidity as they like.

Hisense A6N is a television that is likely to appeal to casual gamers, primarily due to its 60 Hz panel, which may not satisfy more demanding users. Nevertheless, it offers several features that can enhance the gaming experience. The television supports functions such as ALLM (Auto Low Latency Mode), VRR (Variable Refresh Rate), and Dolby Vision, which allows for better picture quality and smoother motion in games that support these technologies. Moreover, the low input lag ensures quick reactions in gameplay, which is crucial, especially in dynamic productions. With these features, although the television is not an ideal choice for demanding gamers, it provides solid support for those who appreciate comfortable gaming without complicated settings. It is an ideal solution for individuals who want to enjoy gaming without high hardware requirements while also having access to modern technologies that enhance gameplay quality.

The TCL C75B is undoubtedly a television designed with gamers in mind. It offers nearly everything that even the most demanding console users could need. With the implementation of fully capable HDMI 2.1, the television supports features like ALLM (Automatic Low Latency Mode) and VRR (Variable Refresh Rate) – operating within the full potential of the television, up to 240 Hz in Full HD resolution.

Additionally, the television supports advanced HDR technologies, including Dolby Vision and HGiG, allowing for even better detail reproduction in HDR-optimised games. The C75B is also equipped with a very convenient interface for gamers in the form of Game Bar, where all key parameters such as refresh rate, input lag, and image settings can be checked – all within a single click.

In a nutshell: the C75B is a great choice for gamers, offering a wide range of features that allow users to fully enjoy the capabilities of modern consoles and games.