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In Reply to: Re: Audio Rack with isolation? posted by michaelv20850 on February 22, 2007 at 07:27:22:
If you decide to use Lovan rack, I would recommend the following:1/ skip the factory MDF boards. You usualy have to pay for them separately, and you pay an arm and a leg for bunch of cheap, crappy, 3/8" thick MDF boards. For about the same price, you can probably get nice solid maple boards or granite cut to your specification. Shop around as prices varies quite a bit. I got quotes from $150 to $500 for three (3) pieces of 3/4" thick granite. The best place to shop for granite is your local granite shops that caters to the kitchen countertop. They usually have a pile of cutouts (for sinks) lying around the shop. They'll sell them to you for cheap. The trick is to find thick pieces and then ask them to cut it to the dimensions you want. They will charge extra if you want the edges polished.
2/ use a glue gun and seal the gaps around each of the legs and then fill them with sand or lead shot.
3/ Because I replaced a few with granite, I ended up double stacked the existing MDF boards and use a vibration damping sheet in between. The "sandwiched" contraption actually works half way decent.
Follow Ups:
18x24x3" granite surface plates are only about $125 delivered. I use them for my TT base.Jim N
Second thought:I would probably go with 2" or 3" thick maple wood with feet, and put it on the floor. timbernation.com is a good place to look at. I believe there are other places too. Or look at A'gon for Sblin stand, but it's a bit pricey.
Hmm, sounds good to me but is granite a good isolation option. Was told that it was not, same as glass. Wood especially maple works well but I am no expert. Thanks!
Yes, I forgot to mention that I use sandwiched method for the granite as well. Two sets of granite/maple board with a sheet of vibration absorption vinyl in between (for turntable and CD transport). The other one just have a vibration absorption vinyl taped to the bottom side. (for DVD player)
Iso...
Iso who?...
Iso frustrated by vibration in my system.
OK, its early here and I'm still on coffee...
Yes, granite rings and is far too dense for many people as its loading mass into an area where you might not want it.
On the other hand if you damp it by gluing it to something else you can use it effectively.
And it looks nice.
Personally I wouldn't under-rate the feeling of having a very nice looking rack in a nice room when you want to feel good and listen to music.
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