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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Lovan Classic Rack - fill with lead shot/sand or try spray foam? posted by SatoriGFX on December 26, 2006 at 18:49:03:
You can try searching here under my name for posts on this around 2000/2001. At that stage I had a Lovan Classic rack and I tried various options and reported on my experience.I did spray foam into the cavities of the horizontal members through the open holes underneath them. It worked but it was messy. The foam expands after spraying and it's pretty well impossible to guess the right quantity. The result is that it starts expanding up out of the holes (I had the rack upside down to do this) and it gets over the outside of the members. It's difficult to clean off, and I never figured out a way to remove it. I think it helped but I don't have any comparisons to report.
With the legs I tried lead shot which I eventually removed and replaced with polyester batting rolled up tightly and forced into the legs through the top. If you remove the spikes and insert a long metal rod through the hole for the spikes, you can tap the brass caps out which makes filling the legs much easier, provided you put the spikes back in first. I didn't try sand in the legs because there were gaps around the bottom plates where sand would have leaked. I found the added mass of the lead produced a mid bass emphasis. The polyester provided damping without the mid bass emphasis, which allowed me to hear a bit more low bass extension that had previously been masked.
If you want to use sand in the legs, you're going to have to make sure the bottom plates are fully sealed.
My preference would be to go with something light like the polyester batting which needs to be tightly compressed to work well. It's a better option for the horizontal struts than the foam because you can remove it if you don't like it, though it would be difficult to get it all out. I think it's basically impossible to remove the foam once you've got it in there. With the legs you can try the shot or the polyester and see which you prefer. I suspect if you like a lot of 'slam' in the bass you'll prefer the shot. On the other hand, if you want a bit more natural bass without that kind of emphasis and with a bit more extension, then go for the polyester.
A lighter fill than lead, say one of the fine steel shots used for sandblasting or something like the Atacama Atabytes, should produce results somewhere in the middle and I think would be preferable to lead. It also won't have the health issues that lead does.
David Aiken
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Follow Ups
- Re: Lovan Classic Rack - fill with lead shot/sand or try spray foam? - David Aiken 23:42:16 12/26/06 (2)
- Re: Lovan Classic Rack - fill with lead shot/sand or try spray foam? - SatoriGFX 00:44:44 12/27/06 (1)
- Re: Lovan Classic Rack - fill with lead shot/sand or try spray foam? - David Aiken 12:44:08 12/27/06 (0)
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