Also wanted to add that bp3000tl both use similar size sealed cabinets in separate compartments for front and rear. The 7000 and 7001 are slightly bigger to take advantage of the upgraded mids and tweeter. Bp3000 has same mid and tweeter used in bp2000, bp2000tl, bp30, Bp10b, clr2000, clr1000, sm450, clr3000tl,power monitor 700 and bpvx/p. Bp3000 cabinet is bigger to help that big 18 inch driver but it has nothing to do with mids and tweeter. The amp In 7000 and 7001 is a big upgrade from 2000 and 3000 towers.
7000, 7001, clr3000 and bpvx are only models that got the newer updates.
When I compared bp3000tl in same room against bp7000 I noticed similar things. 18 in 3000 is booming more then 7000. Actually 7000 and 7001 have about 2-3db Advantage almost everywhere from 20-125hz. I believe the bp3000 seems louder because it?s just not as clean. Also the 7000 and 7001 mids are cleaner and more refined. The top end on 3000 is still very good but sounds a little like 2002tl.
If it was me Id keep them both. I did lol