12 db bass boost 40hz vs 45hz...?

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right now, with my current setup i gotta 12 db bass boost centred @ 45 hz. but when i look at other amps/xo's the normal bass boost is centred @ 40 hz.

is there any significant bass/acoustical difference between a 12 db boost centered @ 45hz and a 12 db boost centered @ 40hz...or is the 5 hz difference minor?
 
my setup

i basically got an odd setup...

i built 2 3 cubic foot boxes (ported @ 32hz ) this summer for some jbl 12' subs i bought to complete my room.

from my computer i got rca jacks into a 3 way crossover.

the first output goes to my first amp which powers my satellites.
the sub output goes to my second amp which powers the subs.

i got the sub's located under my desk both next to each other, currently crossing over @ 80hz, and sound best with the 12db boost @ 45hz.
 
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This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.