A measure of acdustic power per unit area. At the threshold of hearing, the acoustic intensity is 0.000000000001 watts/m2
"Dear Dr. Coban, Received my CD's a few days ago. Thank you very much! The music sounds incredible. (Even better than what I remember when playing the original LP's) Thanks for helping preserve the music I listened to as I was growing up. I am a very happy customer. Sincerely Yours,"