[quote name='Bill Fitzmaurice' post='219597' date='Jun 16 2008, 02:39 AM']'No trouble' is a matter of opinion. Mine is that of a bass player who also happens to be an audio engineer. As for specific examples, that would be the simultaneous using of any two cabs that don't have identical phase response.[/quote]
In that case you'll be aware that such a subtle difference in phase would infact be neglectable in a band mix? Particularly if you mic each cab seperate and mix to desired levels.
Stick with the try it and see approach
Many people have told me certain microphone positions and editing techniques are ridiculous and will sound stupid. I done them anyway and then I get asked how because some sounded good (some sounded bad too). Sound is simple enough, the human ear however is another matter.
And lets face it anyway, how many people actually LISTEN to the bass in a song? Most people i know feel it and subconciously listen.
My £0.02