SPL port tuning question?

[SPL140.2 5,000+ posts]

Im gonna start building my new enclosure pretty soon. Heres the scoop, my vehicles sweet tones are 53,54hz. My old enclosure is tuned to 49hz, which is high. I heard I should tune it to 43hz and someone else said 40hz. What should I tune my port to if my sweet spot is 53-54hz???

Click to read more...

 

[BoomCrew 10+ year member]

what woofers do u have? which spl series and how do u like them?

 

[Moe Lester 10+ year member]

id try 45ish-47ish, no telling though, youll probably have to go through several boxes to get it to peak JUST right.

 

[Goldtaz1 10+ year member]

I'm in the same boat as this guy. My competition enclosure is tuned to 45 Hz, but the resonant frequency of my vehicle is 47 Hz. Should I alter the enclosure to be tuned to 47 Hz? Someone told me that I should leave the enclosure as is, but that I should simply play a 47 Hz note when I compete? Is this correct? It was my understanding that you should tune your enclosure to the resonant frequency of your car and then play that exact note in competition? I think my questions may help clear up what SPL140.2 is not understanding either. Let us know.

 

[Goldtaz1 10+ year member]

Hello? Any help would be greatly appreciated.

 

[squeak9798 5,000+ posts]

You normally don't want to tune your box to exactly the res freq of your vehicle because ported boxes tend to peak 5-8hz above the tuning frequency.

Like Moe said....it's just about testing and finding out what works best.

 

[Goldtaz1 10+ year member]

You normally don't want to tune your box to exactly the res freq of your vehicle because ported boxes tend to peak 5-8hz above the tuning frequency.
Like Moe said....it's just about testing and finding out what works best.

Ok, cool. So it's possible I may actually want to tune lower?

 

[squeak9798 5,000+ posts]

Possible, yes.

 

[req 5,000+ posts]

give it a try, you may gain a db, or loose one.

in SPL stuff, you tend to have to build several boxes before you perfect it //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

 

[Goldtaz1 10+ year member]

give it a try, you may gain a db, or loose one.
in SPL stuff, you tend to have to build several boxes before you perfect it //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

Or just simply build a removable port. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif