Maximum HMDI v1.4 length before signal quality degrades Tags: HDTV Home Theatre Last response: June 28, 2012 4:09 AM in Home Theatre Share newinstall June 28, 2012 3:43:06 AM I'm wiring an addition and would like to install HMDI in the wall. What is the maximum length that can be used without signal degradation for HMDI 1.4? More about : maximum hmdi length signal quality degrades revolution2718 June 28, 2012 4:09:48 AM 50 feet and under is considered "safe", when you get longer you may begin to notice degradation without an amplifier. m 0 l Can't find your answer ? Ask ! Publish Related resources Is there a maximum length for Internet calls before their signal strength decreases ? Forum More resources Read discussions in other Home Theatre categories Digital TV DVD Players Set-Top-Box HDTV ReplayTV Satellite TV Tivo !