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Re: DIY Bass Traps Question -- AND New Quick & Dirty Recipe

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The triangular versions I outline were just a way to do a quick and dirty version for the less labor inclined and/or impatient amoung us. They are not quite as effective as the round versions, which duplicate th effects of the retail ASC devices quite well.

The middle support disc also helps reduce any tendency for an internal resonance developing, and while not strictly necessary for the triangular versions (the panel flexing of the OC panels was a part of their design), it wouldn't really help that much.

If one wanted to use the triangular version, then if an internal divider was tacked into place leaving air gaps along the sides, then they would break-up any internal waves, and not keep the panels from flexing. A section of the fiberglass board would do nicely.

New Quick & Dirty Recipe

Thanks to my less motivated friends, I have a new recipe:
buy three rolls of 15" wide fiberglass (virtually any thickness, as the rolls are longer for the thinner stuff, and the total diameter ends up about the same, it can be faced or unfaced) insulation, stack them on top of one another, leaving them in the plastic bags, and wrap burlap or grill cloth around them. For better HF absorption, wrap polyester batting around one side or the entire sides. You can use something like duct tape to hold the three bags of fiberglass together, and to tape the polyester batting into place, etc. How invloved you wish to get is up to you. They should be placed in the corners, as for all bass traps.

This will work almost as well as the wire fence version in my recipe, at perhaps 70-80% of the bass absortion, with no resonances, or problems.

BTW, a reminder that I now have pics of a cylindrical bass trap at my web site.

http://members.xoom.com/Jon_Risch/index.htm
see
http://members.xoom.com/Jon_Risch/basstrap.htm
for the pictures.

Jon Risch


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  • Re: DIY Bass Traps Question -- AND New Quick & Dirty Recipe - Jon Risch 08:36:41 07/08/00 (0)


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