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24" & 35" THTLP in same room?

Posted: Sat Feb 21, 2026 11:36 am
by nightvision
How would two different cab sizes behave in the same listing area? Both contain the same Ultimax 15 inch driver.

In my living room, I currently have a 24-in wide end-firing THTLP, which I built several years ago. I love the way it sounds, however I have noticed that there are areas in the room with reduced base, as expected.

Last summer I built a 35 inch THTLP side-firing version and placed it in my garage.

I'm wondering how it would be, if they were both placed in the living room? I know that it's not a good idea to place mis-matched subwoofers in the same listening area. However, they both are the same design and contain the same driver. One's just wider. Any thoughts or anyone try this before?

Re: 24" & 35" THTLP in same room?

Posted: Sat Feb 21, 2026 12:08 pm
by Bill Fitzmaurice
They have response close enough that it wouldn't be an issue.

Re: 24" & 35" THTLP in same room?

Posted: Sat Feb 21, 2026 3:41 pm
by Keryn O'Shea
nightvision wrote: Sat Feb 21, 2026 11:36 am Last summer I built a 35 inch THTLP side-firing version and placed it in my garage.
:shock: l'm guessing the garage is now destroyed!