You are the thickest person I have ever encountered on this forum.
setups in question... (4) 12" L7's burping on 2000watts a piece yielding 150.9db
this compared to (5) 15" W3's burping on 2000watts a piece yielding 171.7db (4x) louder
SOOOOO you know what that means?
The following is largely to do with install but hopefully not only:
here's where i am confused but both statistics are impressive...
20 db's is 100x more intense yet only 4x audibly louder.
so i'm not sure if 4 or 100 times the equiptment is required to climb 20db's
this site says 100x
http://www.glenbrook.k12.il.us/GBSSCI/PHYS/CLASS/sound/u11l2b.html
(See the last example)
That (according to intensity) means your L7 owner would need 400 L7's and 800,000 watts to reach the intensity which the mere five 15w3s achieved with 10,000
I somehow think its 4x instead of 100x...
Still meaning you would need 16 L7's and 32,000watts. still ridiculous