Spl Difference With Same Power To Different Subs?

[imfrom210texas]

Yes, it does. Overall movement of the cone isn't what dictates 'loud' and 'quiet.' In fact, you will notice that for extreme SPL bursts at the enclosure and vehicle resonant frequency, the driver really isn't moving too much at all.

So let's look at it this way. You have a woofer that is 2.4% effecient with respect to both electrical and mechanical factors. You put in 1000w, you get 24 acoustic watts of sound out of it (hypothetically.) You have a woofer that is 5% effecient with the same 1kw of power, you have 50 acoustic watts of sound. BIG difference in overall sound pressure level.

Your situation may not be that extreme, but the point I am trying to get across is that a more sensitive loudspeaker system, that is the enclosure, damping, driver, tuning etc will most likely (ie 95% chance) be louder. Whether that be .1 decibel or 1 decibel difference, I don't know.

Cheers,

Mick

so to make it easy, IF two subs had the same sens., enclosure size,etc., the one that's more efficient would be louder, even though they are at the same excursion? Also, how would I go about figuring my subs efficiency?

Edited September 22, 2008 by imfrom210texas