box sizing q?

[moturbopar 10+ year member]

Hi, I am trying to run two different sized subwoofers. 1 12" orion XTR and 2 orion ccobalt 8" svc subwoofers. I am trying to figure up box sizes for each. Orion recommends a sealled box size of 1.5 cubic feet for the 12" But all I can fit is a 1.3 Cf box. Will this really hurt the performance of the sub?As for the 8s I dont know what size they require, but a but I can only get .74 cubic feet per 8". I am looking for nice tight bass. I am not too worried about it booming, I just want something that will be nice and smooth. Do you think these box sizes will work?

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[Trixter 10+ year member]

The best way to do it, if you insist on mixing subs, is to make the different subs produce different freqs. Like the lows (24-60Hz) for the 12" and higher bass (61-100Hz) for the 8's. Otherwise you can run into cancelation problems. (I don't really know about the numbers I just used those as examples.) As for the 12's box, making it smaller will tune it higher...which wouldn't be good in your case since you have the 8's to do that.

Personally I would take all the room you have a make a ported box for the 12". Or sell the 8's and get another 12".

 

[gettnbig 10+ year member]

The best way to do it, if you insist on mixing subs, is to make the different subs produce different freqs. Like the lows (24-60Hz) for the 12" and higher bass (61-100Hz) for the 8's. Otherwise you can run into cancelation problems. (I don't really know about the numbers I just used those as examples.) As for the 12's box, making it smaller will tune it higher...which wouldn't be good in your case since you have the 8's to do that.
Personally I would take all the room you have a make a ported box for the 12". Or sell the 8's and get another 12".

Good answer!