They do look like their regular models, but while the one one the right is a stock Stealth 12-ER, the one on the left is a one-off Twin-8-Tower-ER custom built for me by Rich Raezer in 2004. As far as I know he didn't build any others. I used these cabs, plus a standard T-8-T and St 10-ER, with Acoustic Image Clarus heads for all my gigs until 2007, when I switched to AI combo amps. The two cabs in the photo I repurposed to home modeling duty. They do sound amazing--the tower is the best-sounding cab I've ever used.
I have used it at stage volume to play rock, but probably not the type of rock you're thinking of--'50s/'60's stuff at levels I could tolerate without earplugs.
Photos from 2003:
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View attachment 99672