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How about damping the casing of equipment? When I touch the casing of my hybrid amp, I can feel it vibrating (I believe from the sound waves produced by the speakers), and I was thinking that it can't be too great for the tubes inside. Should I stick something heavy on top of the amp, and if so, any suggestions what....a bag of sand, a brick?
You could try Dynamat. It is used for damping car doors and you should be able to pick it up a somewhere like Halfords or a car audio dealer. It is self adhesive and goes on the inside surface of the casing. Just be carefull not to block any vents.
I spent yesterday evening building my own version of the tnt audio flexy table out of 18mm mdf and m20 theaded stud bar total cost of matierials under 40 pounds all shelves isolated with rubber grometts. I may get a peice of 6mm safety glass cut for the top of the rack mounted on the top shelf of double thickness mdf with either rubber or felt pads to set turntable on.
I am going to make a few mods to design not overly happy with 18 mm mdf am going to double up sheets to make it more ridget in fact that is my saturday project i will report back and try to post pics over weekend
From what I have heard they do. One of my friends uses a Turntable on a Seismic Sink by Townshend and that made a big difference (as you'd expect with a turntable). The Seismic Sink uses a "high compliant air suspension" system to isolate the equipment. This isn't cheep and is in high demand on Ebay (therefore still quite expensive). Townshend have made a range of "racks" which also use the same air suspension principle. These have very good reviews but are extreamly expensive and are targeted at high end systems. As for your DIY rack , Instead of rubber you might consider Sorbothane ( see http://store.securehosting.com/stores/sh204131/shophome.php?itemprcd=sorb ) or (http://www.hifibitz.co.uk/product.asp?id=545). Mission Isoplats used mdf on Sorbothane feet. And instead of glass using marble cutting boards ( like http://www.amazon.co.uk/Watsons-MARBLE-CUTTING-BOARD/dp/B000KKE4DE). Just an Idea of course.