General SPL General discussion of Sound Pressure Level topics.

Best Class For CRX

Old 02-16-2011, 09:28 AM
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Originally Posted by Father Yuli
159.9 bass race with a jalat box!
We've done some calculations ... According to my Math, we're in the 150 range already with the air flow we're getting out of the port.

I gotta read up on how many layers of dynamat is legal?!?!
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Old 02-16-2011, 09:35 AM
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Its too bad that my camera isn't working right now, I would take some pics.
Imagine the deep red of Jonesbrooklyn's car, but deeper (in white) and like Jesse's, but with no rust!

Oh man, too bad.

Last edited by DaVibe; 02-18-2011 at 08:32 AM.
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Old 02-16-2011, 09:41 AM
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So crx or civic hatch?
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Old 02-16-2011, 09:58 AM
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Originally Posted by DaVibe
We've done some calculations ... According to my Math, we're in the 150 range already with the air flow we're getting out of the port.

I gotta read up on how many layers of dynamat is legal?!?!
Seriously you can figure out Spl by port air flow? If I give you what mine is can you figure out what my Spl will be, I'm just so sick of pulling out the termlab and testing
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Old 02-16-2011, 10:50 AM
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Their all gonna give you a hard time!
If your serious, buy a termlab, will save you a ton of time.
Research, look at which classes people use crx, style lr type of
Box and start there. Terry had a very loud crx.
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Old 02-16-2011, 10:15 PM
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we own a termlab. 500.1 off two 12's and we are doing 151.xx @ 58hz

its a CRX hatch.

what do you guys with CRX's usually peak at

our configuration is subs forward and two 8" sonotubes facing hatch
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Old 02-16-2011, 10:20 PM
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Just like with every car each rex peaks at a different frequency. You will have to see what the sweet spot is for the car. 2 layers of dynamat for a total of 4 mm. Deaden the car first then start the box and tune.
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Old 02-16-2011, 10:48 PM
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Originally Posted by jonesbrooklyn
Just like with every car each rex peaks at a different frequency. You will have to see what the sweet spot is for the car. 2 layers of dynamat for a total of 4 mm. Deaden the car first then start the box and tune.
wow alright. so a 151 aint bad for no deadner and 500.1?
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Old 02-16-2011, 11:02 PM
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Originally Posted by jalat
wow alright. so a 151 aint bad for no deadner and 500.1?
not bad? it's friggin amazing!!!

you will bass race 59.9 in no time!
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Old 02-16-2011, 11:24 PM
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Originally Posted by Father Yuli
not bad? it's friggin amazing!!!

you will bass race 59.9 in no time!
Man you guys love mocking people.
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