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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: Re: I'm confused posted by kingdaddy on September 22, 2005 at 06:50:18:
Ethan and I have gone round and round on pressure device bass traps, he seem to think that they don't work very well, while I have found that they are one of the most efficient uses of fiberglass there is.If you want to just throw sheer fibereglass at a problem, the Super Quick & Dirty bass traps are the simplest, easiest way to do so, and require very little in the way of assembly or construction, unless you WANT to make a nice looking chicken wire frame so they canbe covered well and look nice. Even then they are easy to make and use.
BTW, for maximum effectiveness, a presure style bass trap wants to be in the corner, but they do work pretty well as long as they are near to the corner, and it helps to remember that you have THREE 'corners' that can be used, the vertical one on the floor wall-wall junction is just the most convenient, and they will absorb just as much bass if placed at the ceiling wall-wall junction, or any one of the other 4 locations not specifically mentioned.
In your case, the best bet would be the ceiling wall-wall junction, and the traps could be placed on top of the subwoofers in each corner.
As for how many traps are needed in a room, this depends on the room, and how big it is, etc. In most cases, a noticable improvement can be had with four 45" tall SQ&D traps (that's three rolls of 15" fiberglass) one in each corner, or at least two large ASC style traps in the front of the room. However, for many rooms/systems, it may take another 50% to 100% more traps to make a big difference, the kind where you stay up all night to listen to tunes, etc.
It might help to put things in perspective, that one large ASC style bass trap is easily the equivalent of several of the flat wall panel type 'traps', and will usually go deeper and absorb more than they will. Of coure, Ethan would argue this, and that is his perogative.
His site data can not really shed much light on this, as there is no direct comparisons possible between an ASC trap and his panels.
Hint: There is some absorption coefficient data at the ASC site at:
http://www.acousticsciences.com/tubetrap.htm
that would make an interesting comparison to the absorption coefficient data at Ethan's site.The bottom line though is just how well any given product or device actuall works in a real room, and for the listener. I have listened to rooms that were treated with only wall panels, and rooms that had a minimal set of bass traps and a minimal set of wall panels, and the trap and panel combination was far superior, and worth any extra effort or money.
Jon Risch
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Follow Ups
- Re: I'm confused - Jon Risch 10:35:48 09/22/05 (0)
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