View Full Version : Box Efficiency

06-17-2007, 02:46 AM
Im trying to get a better understanding of the difference in box sizes. my next subs are 2 splw15"s..for quite awhile ill only be able to give them 750 rms each. my question is...should i build my box big to increase the efficiency of the power i have or should i build it small to increase the spl? im not trying to enter competitions but i want somethin that will rock my car. basically it has to be very loud but i dont want it to be peaky or sound terrible doing it.

06-17-2007, 04:20 PM

06-17-2007, 04:31 PM
Don't quote me but, from my understanding....The more power the smaller the box and the bigger the box then lesser power

Do about 8ft^3 NET at 35hz and come back with results

06-18-2007, 01:56 PM
yes, the larger the box, the more efficient the driver will become....meaning less power to push it.

where did you hear smaller to increase spl?

06-18-2007, 07:02 PM
i have absolutely no idea...didnt think it was true tho. anyways what happens if you give the sub too much room? i mean is there a point where bigger starts to decrease output?

06-21-2007, 02:07 PM
yes, but every sub is different so there is no magic number.

06-22-2007, 04:08 AM
Smaller box for higher SPL might be referring to the fact that SPL boxes can be smaller if you want them to peak at higher frequencies...not ideal for a daily setup at all...

06-22-2007, 06:47 PM
whatup sku? another seattle guy

06-23-2007, 12:31 AM

Where you at in Seatown?

What's your setup?