Here's what I've got:

LE-15B's in 4.5 cu ft vintage furniture cabs; sliding bottom panel cut-out (cab is on legs) for adjustable venting

2420's on Edgar round horns (800hz cross)

3131A crossovers (huge! out of 4331A monitors somebody parted out)

My main question is about proper venting for the 15B. WAF dictates that the cabs stay, but venting can be adjusted. marc g. told me the stock venting was 2 4" dia. tubes, 7.5" long. Seems like a LOT of venting for a really loose woofer. I've narrowed the gap on the sliding panel quite a bit to focus things a bit more.

Anyway, any hints would be very much appreciated. I'm driving them with PP 6B4G's, and they have GREAT potential if I can tighten up the bass a bit.