4 - RF T1 12''s for my Yukon xl or my SS Blazer need help.

[Barnett 313]

I have 4) Rockford T1 12'' the new ones, I want to build the enclosure so I can use it in the Yukon XL or the SS TrailBlazer when I drive that one. I want it to hit hard in both trucks, the thing is what size enclosure do I go with a 8cft or 11.8cft and what should the port be tuned to 32 or 37HZ ? I have the power to push them, I sold the 2) Belva BB3000D amps I had both new in the box. And came across 4) Audiopipe APSM2000 Amps from the same guy. So I'm putting 2) APSM2000 amps in each truck for the box.

[Joe X]

Post max dims for each vehicle.

[Barnett 313]

Hey Joe X, the max dimensions for the Yukon xl is 48 1/2''W x 36''H floor to ceiling x 30''D. But im only going up to 20''H for the window line. The SS Blazer is 44''W x 34''H x 28''D, the window line for that one is 18''H.

[Joe X]

There's space some issues with the SS Blazer, (none with the Yukon), I know some have to 46W, just see if you can get some extra space, also, the 28D is right at the hatch?

[Barnett 313]

Hey Joe X, the measurement on the Blazer is 46''H I measured the low end of the tailgate. And its like 30''D to the hatch, that's why I was saying 28D. Because I know you need like what 2 to 3'' from the port to the hatch or am I wrong?

[Joe X]

Ok here is a first shot, surely I'd do it bigger if I could, check if the dimensions really work for you, amp subsonic filter to 28Hz, port clearance 4 1/2". Power: to subs rated:

[Barnett 313]

Ok joe I'll give it ago, so that's 2 to 2 1/2 sheets of MDF? Oh the amps power rated 4000 (RMS) @ 2 Ohm strap together. The Amps are 4 AudioPipes APSM-2000, 2000W (RMS) each amp. Each truck will have 2 of the amps, and I hear you on the 4 1/2'' of clearance. THANKS

[Barnett 313]

Joe X thanks for the design, you said you would go bigger. How much bigger are you talking, like making the box much taller? And what kind of db do you think I can get like 147-150db or more with this setup? One last thing, do you have one more box design just in case?

[Joe X]

I could increase some height to improve efficiency a little with no negative side effects but in the end one can not make a prediction of X dB in a particular setup, the quality of you power an deadening, proper gains setup all play a role, also if this is going to be used in two different vehicles, you will get different results in each one.

[Barnett 313]

Ok I get what your saying, Ill start on it this weekend and try and post pics.