02-03-10: Rhljazz
Everytime I see a lab photo where some guy's designing/building his amp, the stuff is on a workbench with formica surface over what I would guess is 3/4 plywood. Maybe that's the ultimate shelf since it seems like many amps are voiced sitting on that type of surface.
Now you've let the cat out of the bag!!! Now you can look forward to $2000.00 per sheet "audiophile" plywood at Home Depot and Lowes!!!