alpine type r

[eclipticvisions 10+ year member]

i am building a box for alpine type r 12 and i am wondering what to expect for spl from a 1.5 sealed or 2.2 ported

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[thatkidbob 10+ year member]

did you search at all?

 

[eclipticvisions 10+ year member]

alot and i still do not see someone here with those dim and any of them saying that it is a certain spl level some do but the dim are different how do you figure that out

 

[Team Hammer 10+ year member]

With Fiber fill in a sealed box 2ohm and a MRD1005 I hit 127.0

This was in a Aerostar Van. If you go Ported the resonance inside will cancel the port out.

 

[mattf 5,000+ posts]

There's no way to tell exactly what it will hit. You just have to try it and find out what it will do.

 

[AndonD454 10+ year member]

i had 2.23 @33hz and 2.25 38-39hz.. the first box definately had muccchhh better sq.

second box was retarded loud on like 24 songs.. the rest either sounded shitty, hit too low for the box, or too high for it (my rs never had good upper range imo)

 

[SAG3 5,000+ posts]

With Fiber fill in a sealed box 2ohm and a MRD1005 I hit 127.0
This was in a Aerostar Van. If you go Ported the resonance inside will cancel the port out.

What?

 

[Team Hammer 10+ year member]

Whats the question?

Sort of fill in the blank.

 

[dflw_99 10+ year member]

the ported will be louder

 

[JoshHd6 10+ year member]

do 3.0 ported tuned to 32hz..

 

[woody89 10+ year member]

I'd perfer around 2.2-2.5 ported for a single Arr for daily, but that's just me. On a side note, I'm building my new box a little smaller.

 

[eclipticvisions 10+ year member]

thanks alot i was thinking of the 2.2 and its going in a 07 corolla s i hope it has the dynamics i am looking for since i listen to rock and rap thanks for all of the comments i will posts some pics as i am building and when im done