i promise you any splitter system will inhibbit the quality of both picture and audio.. however if you buy a swticher box... (not a split) but a switch they are slightly more expensive due to the technology that helps limit the signal loss, i would advise using very good qualitly screened HDMI cables if you are effectively putting a join in your signal path. you wont notice any difference in quality but as with any join in a signal path there will me some loss.