Great subs, and yes deal of the decade. Still very happy with them. Was just thinking the other day how much driver and power would have to be on that same wall for the same output. I've two of them and played with a couple drivers. Ran a few Lab12C's in one cabinet for awhile and honestly wasn't much different. I'd say power wise(2.5" coil vs 3") they may be less but sound wise and quality were exactly the same. The other driver is the alpine typeR. Handles more power before bottoming and sounds equally good. Cost about he same as a lab12c, so more for the money. I wanted to try some RE drivers like the SEX12's, but lilmiike suggested after modeling them they would be too much driver for the horn so never dropped them in. The RE's are a lot of heavy spider, and heavier surround, more of an spl driver. I've them in dual opposed in my garage with a ep4k feeding over 2kw all day.
If in a diy situation now today with no kits; I'd probably look at the lilwrecker's.
"I should really see what dB levels I'm pushing. Long as it can't foam my beer during a movie we are ok "