A:Answer On its product information page on our site, http://www.lg.com/us/home-audio/lg-SJ9-wireless-sound-bar, the key features indicate that the LG 5.1.2 ch High-Resolution Audio Sound Bar with Dolby Atmos, Model # SJP has 4K Passthrough (HDCP 2.2). HDR10 uses “static” metadata and Dolby Vision uses “dynamic” metadata" which is carried in a 4K signal in video content that has been mastered for those HDR standards. You will need HDMI 2.0a and High-Speed HDMI Cables that can carry 4K signals. Some earlier cables do not have the bandwidth to carry a 4K video signal or the ability to transmit HDR data. If you have the wrong cables, the 4K HDR content coming from your video source will not be passed on to your TV screen. If you want 4K resolution with or without HDR, you need High-Speed HDMI cables. Just keep in mind that just because all High-Speed HDMI cables should transmit 4K at 60 fps with HDR, doesn't mean that they all do. Cables wear out so the older a cable is, the more likely it is to have developed a flaw that inhibits 4K HDR performance. Cheaply made cables are more likely to wear out more quickly. If you bought your cables after 2009, they will likely transmit 4K resolution and HDR. If you bought your cables after 2009, they will likely transmit 4K resolution and HDR. If you want to be sure you're getting the best possible performance, buy cables that specify Premium High-Speed HDMI on the packaging. ^CP
