Hi Mojo,
This is all correct. It is big rooms, big parties, and/or just wanting to be able crank-it-up where the power requirements go up fast. As an example if you are 28' away your starting point is 77 dB. That means four times the power is required to reach the same levels as being 14' away. Or if you wanted it to be twice as loud to keep up with the alcohol consumption, that is around another 10 dB required. Now you need 40 times the power in your bigger room. After all this I am sure someone will ask you to turn it up just a bit more.
