Now, is everyone sitting down? I don't want anyone to faint and sue me. The 2.5 ft enclosure has two ports that are 3" diameter by 3/4" long - the thickness of the enclosure material. Soooooooo, these things are tuned to about 71hz. Theoretically this should provide about a 2dB dip at 140hz and a 3dB peak at about 70hz, dropping off the edge of a cliff below that. These may be box speakers, but David definitely is thinking outside the box. Kinda reminds me of when Galileo said the earth isn't at the center of the universe, or when I announced to my devout old school Catholic parents and my Great Aunt, Sister Victoria, that I was marrying a Protestant girl. I like it.

I still plan to build these to spec and listen with an objective mind. I can even experiment with longer port lengths with pieces of 3" PVC pipe that I already have in the garage from building the Eros MKII's. So many speakers, so little time.