Resonant Freq?

well with a md sidewinder 12 in a 2 cube box sitting in the back where the jump seats are firing up played 45 hz

new box with a ssd played 40 hz , played 45 hz with a sidewinder

napalm in that same box plays 35 hz and does a 140 on the dash

 
When you get the resonant freq of a vehicle how do you calculate that into building a box?? I mean What do those results determine? how big the box should be or ports or what?

 
Tuning around resonant frequincy is an easy way to get loud with out a lot of testing and time. Do a sweep, find the aproximite resonant frequincy. Tune a box to it and you will usually throw up some decent numbers. It is a good starting point as well.

SPL with out the build and rebuilt and retest and rebuild and retest.

 
yeah... just guessing and going does ok enough..

but taking the time to go balls out is the difference between hangin with the locals, to hanging with the world..

//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

mr bdawson sir.. I'm willing to bet myself, and hicks would make a trip down one day to get you started on the right foor... //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Loyd L.

 
I wonder what we use here for industrial hygiene reasons. We have work limits sometimes being exposed to loud noises.
I'd assume the weighting is different, as for OSHA regs you're measuring A-weighted "ambient" noise that covers the spectrum while the TL is measuring a singular frequency...

 
yeah... just guessing and going does ok enough..
but taking the time to go balls out is the difference between hangin with the locals, to hanging with the world..

//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

mr bdawson sir.. I'm willing to bet myself, and hicks would make a trip down one day to get you started on the right foor... //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Loyd L.
Yesssssss!!!!!!!//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 
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