Check out this vid of them playing at L'Olympic a couple days ago:
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On the left it looks like Dan has a new amp. The cab is a Sunn cab and through "clever" sleuthing it's probably this Sunn amp he's using (it has a black strip on it)
http://johnkvintageguitars.homestead.com/2000s-w-cab-800-w.jpg
Wonder why he changed; maybe his Fender combo didn't have enough headroom for the cleans he wanted.