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View Full Version : Difference between SPL and window flexing bass?



18lexusowner
05-27-2009, 06:21 PM
Is there any? To my knowledge, SPL is just really loud music running at like 50-60hz.

So when making a box, is SPL what you want in reality for window flexage?

1rockford1
05-27-2009, 06:26 PM
when you tune low thats where you end up flexing, for me that's how it has worked out

alvitae
05-27-2009, 06:29 PM
When I am going for spl I play the tone my car is and my box is tuned to. When everything is just right I get some harmonics going and my car "buzzes". The air feels thick and the car and glass seems to pulse.

Flex I just put on music crank it up and my hatch bulges 4 inches.

18lexusowner
05-27-2009, 06:29 PM
That's what I thought.

Problem is, you need a HUGE port to get into the ~20hz range for real flexing.

I ran 32hz which is what my box is supposed to be tune to and it did that "buzzing" think. I just don't like that much though, too many rattles.

teedot231999
05-27-2009, 06:30 PM
Is there any? To my knowledge, SPL is just really loud music running at like 50-60hz.

So when making a box, is SPL what you want in reality for window flexage?

:wow:Dude really :rolleyes:

18lexusowner
05-27-2009, 06:33 PM
:wow:Dude really :rolleyes:

dude dude dude...

I still have A LOT to learn about audio. gimme a break!! :crap:

teedot231999
05-27-2009, 06:33 PM
If you want window flexing tune low with big ports and FEED SUBS POWER!

teedot231999
05-27-2009, 06:35 PM
dude dude dude...

I still have A LOT to learn about audio. gimme a break!! :crap:

Not tryng to dis you bro

anj46907
05-27-2009, 06:38 PM
i peak at 49hz in my car the higher the tone the more buzzing but once i start to get down into the 32-40hz range thats when **** starts to flex and twist. my car is walled and once the flexing starts on the low tones the seats usually start to jump forward, doors bulge out, winshield starts bouncing but in general i prefer the higher tuning

18lexusowner
05-27-2009, 06:39 PM
If you want window flexing tune low with big ports and FEED SUBS POWER!

Thanks man.

I'll get more power and better box.

1rockford1
05-27-2009, 06:51 PM
Thanks man.

I'll get more power and better box.
Gl.

RuinedAng3l
05-30-2009, 01:34 AM
I dont think i would ever tune a box in the 20hz range though.... considering 99% of the music you listen to doesnt get lower than 29-30hz.

dappa5
05-30-2009, 01:39 AM
:wow:Dude really :rolleyes:
lmao :D:D:D:D:wow::wow::rolleyes::rolleyes:

Lakota
05-30-2009, 09:03 PM
High SPL can make a lot of flex, but more flex doesn't necessarily mean more SPL. It tends to be easier to make a lot of flex with a low note and low SPL than it does it with a higher note and higher SPL.