These were built by Mike Arnopol in March 2013. They have the 4 woofers and two cross-firing tweets. Those of you who have kept up with the design tweaks over the past year will know that these represent the next-to-latest version of his 4x6, but they are full production models not prototypes. They have four handles - one on each end edge top and bottom and they're 8 ohm cabs. Mike can correct me if I'm wrong but I believe the 4 ohm impedance of the currently offered 4x6 was dictated by the lot of drivers he most recently got from Eminence, and he plans to offer the choice of 4 or 8 ohms in the future. I've used these on about 70 gigs. They're in excellent condition having been covered and carried in my car, not a trailer or truck. I've been doing this since the 60's - in the early 70's I was a two SVT 810 guy. Trust me, these cabs will handle the loudest gig without breaking a sweat, and without getting boomy. If you're a veteran of the BigE threads you know about the Koolaid so I won't get too carried away. PM me if you want more details. $500 each - you pay shipping.