or neither, just leave it alone? I'm about 99% ready to get a LSx1503 and have searched, but it's easy to get lost in those mega-threads. The cab will be mainly for a full range PA with drums and bass, but I might also use it as a BG cab. I have a 3015 and a 3015LF and was wondering which, if either, would be worth putting in the LXs1503. Would the 3015LF be good in there? I'd like to do that if it's a good idea and use the 3015 in a 115 cab by itself. Thanks.