is 13 cubes to big for 2 15's

[sweenster123 10+ year member]

i am building a box in my back seat of my car for 2 15's i came out to 13.40 cubes before displacement. im going with re se's d2 for now and eventually to sx's, but anyways is the box to big. looking for a removable port one being 43 hz and the other i think is around 28. whats your opinion? to big?

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[RAM_Designs 5,000+ posts]

Yep, seems too big to me. How much do you have after displacement? Looks like you'll be around 10-10.5ft^3 after all displacement....you should be between 7-8ft^3 for most 15's.

 

[sweenster123 10+ year member]

k. it was a box i was planning for 2 18's and changed my mind and went with 15's instead. just curious looks like you answered my question for me tho thanks.