Alpine type s

[Dmopar74]

Are the type s subs a decent product? My issue is I have a ram crew cab and I built an underseat box as large as possible but I'm betting there's only about 0.6 cubes per 12" sub and also have a small area the subs will fit in the box. Right now I have some old kicker comps in there and wondering if the type s is an upgrade?

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[kr15 5,000+ posts]

The newest type s are supposed to be an underhung design

 

[Dmopar74]

Well does anybody have some suggestions for subs?

 

[Massive spl]

The new type s is nice. But what's your budget? What about some sundown Sd? Or the FI day 12" woofer for $129?

 

[Dmopar74]

This is what I'm working with, I have 8" of depth but the width is the problem,I need a sub that is not too wide.View attachment 26554279

 

[NSTALN 10+ year member]

The Alpine Type-S is indeed an underhung design...which is more geared towards SQ than SPL. That being said, I modeled the SWS-12D4 in .6 cubes and it's really not a good match. The SWS-12D4 wants to see a sealed box volume of about 2.6cubes to yield a QTC of .706 and Fsc around 44hz. Using a .6 cube sealed box you're looking at a QTC of about 1.013 and Fsc around 66hz....not very desirable numbers.

With .6 per sub I would recommend the Sundown SD3-10. You could feed them about 400rms before reaching xmax. In a .6 cube box your QTC will be around .789 and Fsc around 48hz. The SD3-10 is also an underhung design.

 

[Dmopar74]

So dropping down to 10's will yeald better performance over the 12's?

 

[NSTALN 10+ year member]

So dropping down to 10's will yeald better performance over the 12's?

Problem is .6 cubes is pretty small for a 10, let alone a 12. Many 12's will 'work' but the response will likely be 'peaky' with a lack of low-end extension. I think a nice pair of 10's would yield a more natural and even sound.

 

[blazian87 10+ year member]

How about the Dayton HO 10's? They would work well in small spaces like that. They're not too expensive either.

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[Dmopar74]

I will take the 10's into consideration. What about the comp rt subs, kicker says box as small as 0.55 for the 12s, even though I'm sure that's a bit of a fib.

 

[joinaunion]

What's the dimensions of the box?

 

[Dmopar74]

It's an underseat truck box, all sorts of funky dimensions, but it's about 0.6 cubes each.