i have one set of speakers (2.1) and i use it for listening to various audio sources.. two computers and one cd-player. <BR><BR>i've been using audio splitters (is this correct) - the Y-shaped ...

Tough one. i'd also be hesitant to do a 5 way y split. Distribution amplifier is the safest bet imho, doesn't cost much more than 2x SPLIT 6.