Heads like this did not exist as an available product at that time. I don't really know that much about Bonham's equipment (well I know a fair amount but it's not something I've investigated deeply) so I don't know about the heads you're talking about but if he had an inner muffling ring on his reso head it most likely would have been something that he or his drum tech cooked up on their own.Finally had a chance to pound on these a bit and they sound really good. Had to do a bit of tweaking (factory tension rods on the 12" batter side were too long and ran out of threads before I had as much tension on the head as I wanted so I had to substitute some shorter ones...vintage Ludwig ones of course). Other than that these are very nice. I'm sure to be using them for a gig soon...
I agree as a regular factory option on the heads. He detailed his reso and sound guys can sometimes get creative. The fact the model of head didn`t exist, in a non factor.
That`s what is going on inside Bonham`s stage gear head.
