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Using math to understand cone area vs. motor strength


jfoodstamp

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Ok as many of you guys know I am in the middle of a build with my caprice. I have 4k of power and around 6 cubes net and I am trying to determine what to do next. I am trying to see if their is a mathmatical way to do this part of system design. Correct me if I am wrong but Motor Strength is expressed in

BL

So I am hoping by giving three scenario's you will be able to help me understand better

Set up 1:

2 15" Subwoofers with a BL of 22.73 with a RMS of 2200 each

Set Up 2:

4 12" Subwoofers with a BL of 17.2 with a RMS of 900 each

Set up 3:

4 12" Subwoofers with a BL of 24 with a RMS of 600 each

Which one would you do and why?

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If you start looking, there are quite a few t/s parameters. . .

Get a free program (something as simple as the spreadsheet on DIYSUBWOOFERS.ORG and model up the two drivers. You can look at optimum enclosures, compare performance of each sub in the same box, etc.

Brian

Current system:

1997 Blazer - (4) Customer Fi NEO subs with (8) American Bass Elite 2800.1s

Previous systems:

2000 Suburban - (4) BTL 15's and (4) IA 40.1's = 157.7 dB at 37 Hz.

1992 Astro Van - (6) BTL 15's and (6) IA 40.1's = 159.7 dB at 43 Hz.

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Don't rule out 8" here,

Idd do 4x 12" just from cone alone

But 12x 8" in the same net have have 600"sq v's 450,

And depending in amp, strap another 4000 too it latter and call it a day,

I still think 12x 8" on 333rms each will be be louder then any other set up in 6net

Then if you strap 670 each will show them some real life

But $$$ come into everything

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