Best single subsetup for SPL

[nissanrider06 10+ year member]

i mean 2 type-s**

 

[Raven 10+ year member]

Type Rs are just in this sweet spot of Alpine sub making.

 

[Spkrman]

if you only have 3 cubes... do one type R 12.

x2 //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[joshpoints 10+ year member]

he said one 12 not 2 //content.invisioncic.com/y282845/emoticons/uhoh.gif.c07307dd22ee7e63e22fc8e9c614d1fd.gif

I was referring to this post below:

Originally Posted by Jdizzlei'd have to agree wit spkrman 15s sound like *** in a trunk, unless you have somethin big like a lincoln or an old caddy my friend has a dd9515e in his cavy facing forward and it sounds like *** my g/fs 2 12s are louder than his 15

If this statement is true then the theory of 1 12 being louder than a single 15 false, because as my previous posts explained 2 12's need more air than a single 15.

 

[Spkrman]

If this statement is true then the theory of 1 12 being louder than a single 15 false, because as my previous posts explained 2 12's need more air than a single 15.

what I'm saying is

properly installed, in a majority of trunks one 12 will be louder than a single 15... yes BOTH properly installed.

if 2 12's are louder than a single 15 setup.. or a single 12 setup... or a quad 12 setup... its all in the install, nothin else.

 

[Eugenics 5,000+ posts]

cone surface

 

[riad 10+ year member]

3.5 cu ft

pioneer Tsw304dvc

vented at 33 htz

300W rms

trust me on this

 

[riad 10+ year member]

yea it's in my car at the moment

115 Dbl at 40 htz

 

[JimJ 5,000+ posts]

//content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

What's a dBl?

Is that like the "A" scale, only now it's the "L" scale...//content.invisioncic.com/y282845/emoticons/uhoh.gif.c07307dd22ee7e63e22fc8e9c614d1fd.gif

And 115dB? Is something wrong with it?

 

[riad 10+ year member]

a Dbl ( decibel ) is a measure of how much acoustic pressure is created inside the car by the sonic output radiating from the speakers cone without harmonic distortion exceeding 1.5%

 

[riad 10+ year member]

115 Dbl is good by my standard for one 12" sub daz the reason i still have it.

 

[JimJ 5,000+ posts]

I think you mean a dB; that's the proper notation for a decibel. Or, if you use a weighted scale for the entire audible bandwidth, dBA (this is the "A" weighted scale). And it has nothing to do with THD+N numbers.

115 Dbl is good by my standard for one 12" sub

In most competitions, a score of 115dB will get you a re-try, because something's wrong //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[riad 10+ year member]

i never entered competition with my car.

we just tested it at the store with the IASCA SPL note and it clocked 115dB with 0.8% THD.

For comps we use the MTX Thunder 9500's.

 

[JimJ 5,000+ posts]

Like I said before, something's wrong with that...because most competent single 12" installs will do 125+ on the Termlab //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[riad 10+ year member]

so it should be higher?