servo sub for small sealed box?

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autopi

Member
2008-04-12 2:19 pm
Hello,
I'm looking to build a sub for my music only system, and have pretty much decided on a Rythmik 12" servo system, based on favorable comments here and elsewhere. I'm trying to keep the enclosure as small as possible, as in preferably not more than ~1.5 cu. ft.. The Rythmik 12" standard takes 2.0 cu. ft; Brian at Rythmik says they no longer produce the compact version, and pointed me to the GR Research 12" servo sub which apparently fits the bill.

http://www.gr-research.com/index.asp?PageAction=VIEWPROD&ProdID=139

However, that sub has a foam surround, which I'd like to avoid b/c of foam rot. (I didn't know they still made drivers with foam surrounds!)

So here's my question: what would happen if I take a Rythmik 12" standard and put it into a ~1.5 cu. ft. box? Is it just a matter of losing SPL (not particularly important to me; I don't listen to music at party volumes)? Or will it be terrible and should I just get the GR Research sub?

I can model these things with the spreadsheets for sealed boxes, but since this is a servo design, and one where the Qts is controlled by the amp rather than by the enclosure, I'm not sure how to model it.

Thanks for any suggestions.
 

woody

Member
Paid Member
2002-01-15 12:57 am
Tyrone Ga. U.S.A.
I don't doubt that light may make the foam deteriate faster
but. Back 20 years ago I bought a pair of Morel drivers and
after playing with them for an hour or so repacked them in
the cardboard boxes and put them in a dark closit. Ten years
later I pulled them out to find the foam was compleatly shot.
 
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