HDR AV receivers
HDR
— this technology is designed to expand the range of brightness reproduced by the TV; Simply put, an HDR model will render brighter whites and darker blacks. In fact, this means a significant improvement in colour quality. On the one hand, HDR provides a very "live" image, close to what the human eye sees, with an abundance of shades and tones that a normal screen cannot convey; on the other hand, this technology allows to achieve very bright and rich colours.Please note that in order to fully use this feature, you need not only an HDR TV, but also content (movies, TV broadcasts, etc.) originally recorded in HDR format. However, such content is becoming more and more common nowadays — in particular, many popular video services like Amazon or Netflix provide their subscribers with HDR videos.
Also note that there are several different HDR technologies; HDR10, HDR10 + and Dolby Vision are the most widely used nowadays (for the latter, see the relevant paragraph). At the same time, such technologies are compatible with each other, albeit with some limitations: for example, when launching content in HDR10 + on HDR10 format equipment, the quality of the “picture” will correspond to the original HDR10, and Dolby Vision compatibility with HDR10 / HDR10 + is not mandatory at all, although most often takes place.
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