10 or 12 Type-X, would I notice a big difference?

[danieldl 10+ year member]

Everything is in the question. I was looking to buy a 12" Alpine Type-X but I got a deal for a 10" one, almost new, in a ported Alpine Type-R enclosure. I would like to know if a 12" would make a real difference.

By the way, I had a Type-R playing at 350W rms, now I have a PDX 1000 and that's why I'm looking for a Type-X. I want it louder than my 10" Type-R and to play lower notes too.

Thanks!

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[Bumpin' Goalie 10+ year member]

Alot of the "playing lower notes" will be determined by your box. Also, the X should be louder due to more power. ~3db increase everytime you double your power. However, in most cases, the Type R is the more spl oriented woofer, whereas the X is more SQL.

A quick way to add everything up is take the efficiency of the R. and then take the efficiency of the X and add ~4db to it.

Also, The difference between a 10 and a 12 is:

10 surface area: 78.5

12 surface area: 113.04

3db increase whenever surface area is doubled. so ~2db increase for a 12.

 

[danieldl 10+ year member]

That 10" is ported. I understand that a 12" ported would be about ~2db increase because of the surface area. But a 12" ported wouldn't fit my trunk anyway, I would have to go sealed. In another thread, some guys told me that ported is about 3db higher than sealed. If a 10" sealed is a 0 reference:

10" sealed: 0

12" sealed: 0+2

10" ported: 0+3

12" ported: 0+2+3

The 10" ported would then be louder than a 12" sealed. Am I right? But the sound quality would be amazing with the 12" sealed.

1db isn't really a big difference, I just actually need to know if I take this deal (10" ported) or not. It's still a little bit big (14"x14"x23"), a 12" sealed would probably take less space.