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View Full Version : can someone double check these box specs?



ktraughb
06-03-2011, 10:48 PM
I will be building an enclosure for two 15s. Separate chambers. Plan for 3 cubic feet after displacement and tuning right around 40 Hz. If I use a single 6 inch aero per chamber with actual inner diameter about 5.88, I calculate about 9 inches port length for the 41 Hz tuning. Can someone help me out and confirm or fix my calculations? Thanks in advance. This box will be geared more toward Spl.

Buck
06-03-2011, 11:52 PM
Winisd says 9.92 for 41 hz

RAM_Designs
06-04-2011, 12:43 AM
Winisd says 9.92 for 41 hz

Indeed.

ktraughb
06-04-2011, 02:30 AM
Awesome. Thanks guys. I figured I was off a bit.

Buck
06-04-2011, 02:31 AM
Remember to make the port 1" longer if using flares. You lose .5" per flare of effective port length.

ktraughb
06-04-2011, 09:53 AM
Thanks. That was actually another question of mine. I rarely build boxes with aero style ports and couldn't remember how much length the flares would account for. I've always been a die hard slot port builder but I have built a couple very loud aero enclosures so im going to give it another try.

Buck
06-04-2011, 01:07 PM
Aeros can be loud. It's just all in how it's designed.