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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 2 responses by martykl

martykl
3,578 posts
 
The good news is that a 40 hz suckout won't to be an audibly meaningful problem with more than 95% of the music program material out there. However, if you want to address that last 5%, good luck, it's a bitch down that low. You could go with DRC (preferably a subwoofer) or you could just ignore it.

Marty
martykl
3,578 posts
 
Glai points out that using DRC to address a null can be difficult, but it can be done. For example, several manufacturers produce a 12" sub with 1000 WPC. A pair of such subs (especially those with largeish cabinets) will provide 2 kW of amplifier power (more on peak) into a reasonably sensitive driver/box mechanical system, which will go a long way toward fixing the most stubborn null. This is a blunt force approach, maybe inelegant to some, but it works. As Glai notes, it may also prove expensive.

Good Luck

Marty

PS - When I note that your 40hz null will be mostly inaudible, I assume that it's deep and narrow @ 40hz. A broader null (particularly one extending higher in frequency) might certainly pose a more audible problem.
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