Nevermind the bass traps 200 and 320hz are the problem spots

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Just like the good program said an 18db suck out at 200 and 20db at 320.
I took the ratshack meter and HP generator and swept around a bit and decided to use 100hz for a reference point. found some suck out at 70 and 80hz but only 3db down at 30hz. The Titanic has a parametric that i could fuss with to help this a little.
For the most part the room looks as good as could be expected until 200hz and 320hz then it goes to crap very quickly and comes back just as quickly. Moving the meter 1-2 foot in any direction at those frequencies causes huge variations in readings.
Looks like a call for heavy diffusion, I moved around some 2'X4'X1" fiberglass panels with no luck what so ever.
Also moving the meter into the rest of the basement showed a lot of attenuation until below 50hz. So I think any absorption outside of the room will have little effect. For bass it looks like a room made of 2X4s with 3.5â€ insulation between each cavity does a pretty good job at evening out bass. Maybe Â¼â€ plywood on the other side will help a little.
What can a poor boy do at 200 and 320hz outside of re-dimensioning the room? I guess I should find a better seating position, maybe put the coach on rollers for easy repositioning.

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Topic - Nevermind the bass traps 200 and 320hz are the problem spots - Scholl 14:04:11 12/29/04 (5)

Re: Nevermind the bass traps 200 and 320hz are the problem spots - Jon Risch 14:18:32 01/01/05 (1)

Re: Nevermind the bass traps 200 and 320hz are the problem spots - Scholl 13:44:07 01/03/05 (0)

Do mind the bass traps - pburant 17:36:06 12/29/04 (2)

Re: Do mind the bass traps - Scholl 03:38:10 12/30/04 (0)

thats a bloody good idea - avian 20:47:41 12/29/04 (0)

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