OK. I thought so, but was like, hold on.....

....because it is almost strange that no one has done as you say. I haven't seen the inside of any of the D'Agostino amps, though. The design is so overwrought, I'd almost be surprised NOT to see a piece of signature engraved beryllium copper used there, held by the same $100 ea polished titanium bolts used on the Bugatti Veyron.