Guys, I recently bought a vintage Kustom tuck-and-roll 250 head and 2/15 cabinet. The cabinet was loaded with the standard 15" drivers, which I believe are CTS. And although they are in good condition and still work, they are not the best sounding. I considered buying some JBL D140F's, but they run around $250ea + shipping for a working unit, and $75 + shipping for a blown unit + $140 + shipping for a recone. So I would have to invest more than $500 just to replace the speakers. I checked with Orange County Speaker, and they suggested the Eminence Commonwealth 15, but reviews I have read say this is more a guitar speaker than a bass speaker. I also considered an Eminence Delta Lite II 2515, but some of the reviews on it are not that favorable, and I'm not sure how it would sound in this setup. Then there is the Eminence Delta 15, which I have in my vintage Acoustic 406 cabinet and I am really happy with. They are not that expensive and brought the 406 back to life. I was thinking about pulling the Delta's out of the 406 cab, and installing them into the Kustom cab to see how they sound. Is there another speaker that would sound good in this rig that I have not yet considered? Thanks!