well if your worried that the composite cables (high quality ones you already have) used as component cables are not going to be good enough, then you are probably going to have to go somewhere other than walmart to find cables to do you.
To make it simple sounding...
audio cables are "SUPPOSED" to run at 50 ohm across the entire length of the cable. Video cables are supposed to run at 75 ohms. but the thing is on your average cable to even decent cable any and every bend or kink in that wire changes the load resistance so it is really no where near what it should be. the only way to get past it is to buy nice enough cables, they have to be Nitrogen gas interjected to always make sure the load stays the same.
I know long and boring but what I mean by it, unless you believe you will tell the small difference (some people have an eye for it including me), it's probably not worth an upgrade in those cables.
your Digital coax though is another story that is one where good cables make a night a day difference.
<a href=showthread.php?s=&postid=12489162#post12489162 target=_blank>Originally posted</a> by mpcart
By the way, don't get sucked in by the lure of a "high quality" digital cable. They all work the same.
-Mike
Are you referring to cableS here??? WOW do you really believe that??? you seem like you know a decent amount about home audio and video it seems really surprising you don't believe in cables. I have near a 25,000 home audio video system and near 8 grand of it went into cables. The fact of the matter is your only as strong as your weakest link, and cables are always the weakest link.
what would happen if you tried to hook a garden hose up to a fire hydrant... Your tv might do X and your equipment puts out X but if you connect them with something to small and to low of quality it can only receive that signal