While your statements may be true, we still need a baseline for observation
and comparison purposes. To say that combining two identical "sounds" will
result in a 3db SPL increase (over just one) is stating the obvious.

I think everyone following this discussion would agree that power and piston
area both play a role in the final SPL. However, the question is: what SPL
increase will we achieve by introducing an identical second subwoofer into a
system, and driving it with the same power as the first? We need to start
somewhere. Then we can discuss the effects of other factors (ex: power
compression).

Kevin Murray


"Eddie Runner" wrote in message
...
when two sounds combine it gets louder, it has nothing directly
to do with only cone area....

One 12inch makeing 100db and another 12 making 100db
will combine to make 103db...

by the same token a 15 inch making 100db and an 8 inch
making 100db will combine to make 103db....

SEE!!!! We did not double the cone area and still got the 3db

It has NOTHING to do with cone area!!!!
it simply has to do with combining sounds...

Eddie Runner

Paul Vina wrote:

Huh? If you had 1 sub ay 75 watts and then switched to 2 of the same
size
at 37.5 watts it would be louder. What exactly are you talking about?
If
it isn't the cone area that's making it louder, what is?

Paul Vina