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Suckout at 40 hertz...less pricey solutions?

Can bass traps or other room treatment help with measured 40 hertz bass suckout?

Problem is my listening room is almost a square.

My speakers Have powered woofers and try as my speaker dealer has to dial in the speakers he could not eliminate the 40 hertz suckout without making matters worse

my four walls and ceiling have absorption material and the ceiling is not flat nor low. It's a sloping ceiling 9-12 feet

I could massage part of the problem by adding an additional powered woofer to the speaker . The upgrade to my model is designed to have a powered woofer On top and bottom.

Cheaper of course would be room treatments

most expensive would be knocking out a wall making a rectangle but that in my converted garage would be the most pricey!

Any thoughts

thanks

mike

ps. Room sounds good but would like to within reason maximize potential of my excellent equipment
radioheadokplayer

Showing 1 response by rockadanny

rockadanny
1,236 posts
 
I had a 50Hz suckout (-10dB) I resolved with a pair of bass traps (GIK 244). I have two powered subwoofs and just for the heck of it I took one bass trap off of the wall behind my head and I had one extra just sitting in the closet. I stood them up near each of the two subs in various configurations. After numerous iterations I (luckily) found that by placing them next to one another (for a 4'x4' trap), 6" from one side of one of my subs the null disappeard (mostly, only -3dB now). Bingo! -3dB for a narrow null ain't bad. Problem solved!
p.s. During the juggling process I tried one behind the other for a double thick trap and one on top of the other for a tall trap, but standing on the floor side-x-side worked best for me. Try it!
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