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Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

Re: Size or Thickness More Important?

The first thing that size (area) affects is how much absorption you get, as measured in Sabins. The amount of absorption goes up basically proportional to the increase in surface area so double the surface area and you should roughly double the absorption you will get.

Size also has an effect on the lowest frequency that will be absorbed. As Jon points out, you need panels of a reasonable size if you're going to have them be effective into the upper bass/lower midrange area.

Thickness really affects the lowest frequency that will be absorbed, with increases in thickness helping the panel to be more effective at lower frequencies.

Mounting off the wall increases effectiveness.

If you have a long reverb problem, then it's probably a lower frequency issue. Increasing panel size and thickness will both be beneficial and you should try for both.

Bass traps from floor to ceiling in all corners may well prove the most effective treatment of all. Bass traps tend to deal with lower frequencies than panels, and you can make them effective at higher frequencies as well, and corner placement ensures that all room modes will be covered and room modes are the longest reverb problem in a room.

David Aiken


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  • Re: Size or Thickness More Important? - David Aiken 21:22:08 02/05/07 (0)


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