Remember me? Forgot password? Need an account? Your Personal Details. Please complete this form and we will have one of our audio experts get in touch with you. Get how-tos, tips, specials, videos, announcements and more. You will receive a link to reset your password. The results will tell you how many total speakers are required and how they need to be positioned to maximize the sound coverage in the space. Then input the room length, width, and ceiling height. So in this thread I limited the discussion to using the subs to cancelling the modes below the crossover point 35Hz, 71Hz.Choose your AtlasIED speaker and the transformer taps that you plan on using. Quote: Originally Posted by sdurani Had talked about that subwoofer configuration cancelling the first 3 width modes in the OP's other thread, but I doubt he will be crossing his subs above Hz. Gain matched subs placed symmetrically on either side of a null dip will effectively provide what is known as modal cancellation. In particular the phase of a mode on either side of a dip is flipped degrees. Although not indicated on the calculator is the fact that modes have phase. That would be an 8 foot spread between dual subs deployed so as to NOT excite the second width mode. One example would be noticing the width mode section for the 16 foot dimension- The second width mode has a dip at both the 4 ft and 12 ft distance. Since I opened this can o'worms in another thread, I might as well finish the explanation. I've read several times that a room mode calculator provides a good place to start. Actually, I have the info as the helpful forum member gave it to me, but I like to learn too. How do I get the speaker placement for width based on the info below. Here's a pic of the calculator with my room dimensions. What I don't understand is how you calculate the speaker distance based on the results from the calculator. I got curious as to room modes, calculators, etc Ended up with the calculator. I downloaded an Excel room mode calculator after a helpful forum member started giving me speaker 'distance a part' placement suggestions based off calculations.

Ceiling speaker placement calculator