How does cable length affect HDMI?
When an electrical signal is transmitted over a wire cable, it meets resistance, which can degrade the signal; the longer the cable, the more conductive material a signal has to pass through. A thicker cable has lower resistance, which is measured in “ohms.” Most HDMI cables will work great if they are shorter than six feet. As long as you’re not running an HDMI cable longer than 50 feet, you probably won’t see a loss in video or sound quality. A lower resolution picture can travel farther without losing integrity; but with high resolutions, like 1080p, it’s best to limit the length of your HDMI cable.
