"sandwich" platform for amps


I want ot build a "sandwich" platform for my monoblock amps. I undrstand a "sandwich" approach is best, that is, maybe 3" of acoustic foam layered between either mdf or maple wood shelves. Where dos one buy acoustic foam, and what kind is best; I know it must be very dense. Thanks, larry
larryr

Showing 6 responses by detlof

Hey Stu, here I thought you could just cook...shows how stupid most of your preconceptions are. Did something similar with lead, felt and mdf and now I'm happily full of shit myself. Cheers
Shalom Larry,
Maple would have indeed been much better, but "real" wood is getting rare here and very expensive to buy. What I did, was to build two amp stands together with and for a friend, who has a pair of 75 kilo Gryphons, using a sandwhich of mfd, felt, lead, felt, mfd. The lead we could salvage from a defunct manufacturing plant for very little money. Since one Gryphon had to be placed very close to a subwoofer, we experimented with the felt to good effect. We placed the sandwich on a welded iron substructure, which again, with spikes, was placed on a big slab of granite. Overkill probably, but now, to quote Stu_pisado ( who certainly is not one...) once again, we are happily full of shit.
Mwalsdor, you can try to put small ceramic plates between your spikes and the granite. You will have to experiment. If you get the right ceramic, there will be no ringing but an amazing overall clarification of the sound. Sounds crazy, has to be heard to be believed.
Yous setup is fascinating. I've experimented with PolyCrystal cones and liked them very much, but for this particular setup, preferred the spikes and ceramic combination, which seemed to give a sort of "airy" quality to the sound. I placed the ceramic plates of about a square inch each, between the granite slab and the cones (rather than spikes) underneath the amp.
Hi Stu, "Detlof meatloaf" ? ...and meatless??? Reminds me of what in the old Harlem of the Thirtees was called a "jellyroll". Now now! Stu pidaso...you don't need to be a shrink to diagnose this as a castration-fantasy. So instead of the Bud,. as you suggest, I'd rather have a Viagra-cocktail first......
Happy cooking and listening (-:
Regards,