I'm going to start planning the ported box for two subs, just wonderin whether I should make two seperate chambers or keep it as one box? I'm leaning towards two chambers coz I won't be gettin my second sub for a while and I wanna be able to use the box in the mean time. Any help would be appreciated.
2 x 15inch Rockford Fosgate power HX2 subs.
1 x 1000bd Rockford Fosgate amp to start with, I'll be gettin 2 later on.
Around 70 litres each box.
The booklet does not say how I should make a box for two subs.
mate the phenonemon with using two chambers is to do with speaker failure. In other words...if one speaker blows it acts like a dead weight, giving the other working speaker with 2 times as much volume - which will kill it too as the suspension units wont work properly! It was all started with the pro audio market - where two speakers run at 4000wrms in one cabinet! People were blowing up speakers because one was blown by overdriving and the other by having no backpressure for the suspension units. As far as cabinet flexing goes - just put a brace in the centre of the box.
It doesnt make a noticeable difference to their performance at all...providing you're not going to be hammering them that loud that you'd have a chance of cooking them. Theres a million and one parameters that need to be met to make a nice box...but ill leave that fun to you!
Isobarik is all ok but the design seriously stuffs up the sensitivity of the speakers in the enclosure. Plus you really gotta know what you are doing to make a good one...and they need a bigger box. Id say go for the conventional bass reflex box dude..nice n easy.
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