Did a quick Google search and did find they introduced the head in I believe 1990. Good call on the reverb - would actually prefer a head w/out - Really don't use reverb and Mesa seems to have done some really crazy 'engineering' routing out the bottom of the head to accomodate the pan - like a big hole. Did so on the Dc-5 head and another I saw recently at a local music store...not sure the model - thought it was an owner 'butcher' job until I noticed a few more pics of similar setups on eBay.
Will have to keep my eyes open for a head on eBay and a few other forums (like here) :roll: