Finding maximum theoretical dBs

ledhed

Ok, I know that if sensitivity is known along with the rated output of an amp that the theoretical loudness the speaker can achieve can be found. I just don't know what the formula is for finding out.

Also, what dictates the sensitivity of a speaker? The driver, cabinet or both?

Thanks,
Jack

McLoki

SPL goes up 3db every time the power doubles.

SPL goes down 6db every time the distance from the speaker doubles. (sensitivity is rated at 1 meter)

SPL goes up by 6db if # of speakers are doubled. (i.e. - 2 woofers in the same box (SVS /2 subs), two speakers next to each other, etc.)

Room boundries can factor into it as well, but not sure how to calculate it.

Good luck.

Michael

ledhed

I found what I needed myself after much searching http://www.myhometheater.homestead.com/splcalculator.html. Thanks