OOOPs: Mistake found on “Phase wavelenth intro post”

I found a mistake in the MAPP plot in the intro gallery: one pic had the wrong autocad background and showed the lines crossing in phase where the acoustical was cancelling. I am sorry for any confusion this may have caused.  THIS IS THE RIGHT ONE  (aslo found in the ols post0 6o6

Subwoofer Delay Taper (Update 1)

Here is a quick preview of my next post.  These plots contain concentric circles. Each represents a wavelength traveled from the speaker at 125 Hz (2.73 meters). The first one shows 7 speakers spaced at 1/2 wavelength (1.37m) and all set to 0 ms delay. The concentric are all the same for the 7 speakers […]

Uncoupled Array Design: Beginnings and Endings (Updated)

** Update:  A downloadable version of the calculator to do this work is available (courtesy of Daniel Lundberg). Go to the bottom of this post for preview and instructions.  ______________________________________ When a coupled array is assembled, its operating range is limited primarily by its power capability. Even very large arrays will congeal fairly quickly and once […]

Sound Systems: Design & Optimization – 2nd Edition

The second edition came off the press in October of this year and I am quite happy with the result. First thing is that the book can sit on your lap or a table without flopping around. The graphics came out much better. I was able to get them reformatted so as to get the most […]