Interesting info. Thanks for posting!
For your application, don't forget your neighbors have walls as well, so for identical construction, the number should double. In addition, sound intensity decreases as a square of the distance, (twice the distance = 1/4 the intensity) so the space between you and your neighbor is your best friend.
In other words, never buy a condo if you are going to buy subwoofers and a decent stereo. :-)
For your application, don't forget your neighbors have walls as well, so for identical construction, the number should double. In addition, sound intensity decreases as a square of the distance, (twice the distance = 1/4 the intensity) so the space between you and your neighbor is your best friend.
In other words, never buy a condo if you are going to buy subwoofers and a decent stereo. :-)