Newb ish

[kwitcherbichin 10+ year member]

Ok moving on up to 2 15s from 1 12. BUT... I was wondering if the 2 15s would move more air with the lows then 2 re xxx 12s. The 15s are rf t1's and yes I know I only said one xxx but I had 2. But anyways would the 12s move more air then the 15s? And for a song example for lows since most people don't know what I listen too search up chopped and screwed version of put on. That's the lows that I do. So if anyone knows the answer please help me out. Thnx

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[Bumpin' Goalie 10+ year member]

Surface area, excursion, BL, power will all affect this. Alot of math to find out exact numbers...

 

[kwitcherbichin 10+ year member]

Well do the math for me. Both boxes tuned too 27-26hz.

 

[Bumpin' Goalie 10+ year member]

Haha I'll do a quick mental approximation but no promises on accuracy...give me a minute to find specs...

 

[kwitcherbichin 10+ year member]

... And if u have a messenger if it's cool with u I would like too talk thru aim or something

 

[Bumpin' Goalie 10+ year member]

RE XXX 2x12"

Surface Area: 226.08

Xmax: 54mm

Fs: 21hz

BL: 18.16

T1 2x15"

Surface Area: 353.25

Xmax:14mm

Fs: 28hz

BL: Unknown to me in my quick search.

Anyone wanta crunch some numbers for him to check my guess?

I lean towards the XXX on basis of excursion, decent force, and it's overall ability to be used as a low end monster. The T1 has a ~4db sensitivity advantage, but the XXX can take 4 times the power...so that can be wiped away with power present...Both have/can/will get low.

The surface area increase is a big factor, however..

 

[kwitcherbichin 10+ year member]

So basically tip for tap...

 

[Bumpin' Goalie 10+ year member]

Eh, I think the T1's would be easier overall. Only need ~1500rms instead of 4k. The XXX's love massive boxes.

I'd tune the T1's to 28-29Hz or higher in 5cubes after displacement. Even just 1krms would work fine though you can always have more on tap. Just make sure your SSF is set wisely so they don't freak out below tuning.