In our last Rig Rundown with Mahoney in 2009, he was using two Diamond Spitfire heads for his clean-dirty tone equation, but has since dusted off two studio veterans and brought them out on the road—a Bogner Überschall and a Mesa/Boogie Mark V. Both heads crank out of their own Diamond Custom 4x12 that are loaded with Celestion Vintage 30s.
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