Wall question?

[JEXTEL 10+ year member]

I recently walled my maxima with 2 FI BTL 18's at first i made trim panels to extend the box to the rear doors but they wasnt 100% and now i took the time and extend the trim panls to the b pillars with fiberglass..

My question is my peak freq. was 45hz..im wondering will my peak freq. change any? im hoping it would go down but i dont think so...

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[Skip01 5,000+ posts]

I think it might drop....it did in my friends truck when he made panels that extend past the box/wall to seal it off

 

[JEXTEL 10+ year member]

I think it might drop....it did in my friends truck when he made panels that extend past the box/wall to seal it off

I hope it drop to at least 41-42hz