Room acoustics simulation

Go to and click on "room acoustics simulation" for a simple interactive room acoustics demo. I have no connection to either Elac or Cara.
This is the same simulation program we use on our site as well. Room Simulator It's very good for simple rectangular rooms. Positional frequency response changes below 500 Hz, and can really be helpful in determining where some of the bass peaks and nulls are in a room and how to avoid them.
Great but no Maggies on list. Maybe I should buy some jbl's or bose ;-)
In the full version you can use dipoles, such as Maggies. In the "quick" version they are limited to a number of speakers, but the list is increasing.