EC8010 said:I've been rounding the edges of my baffles (1" radius) and covering them with felt since 1981. I also cover the front plate of the tweeter. The effect is to clean up the off-axis response and reduce lobing. Oh, and it looks pretty. There are other colours than black, you know.
EC8010 said:I've no idea what sort of felt it was. I thought felt was felt, was felt. How do you tell whether it's felt made from hand-washed organic sheep or synthetic?
I assume the twiddly cuts on your felt are to break up the boundary to the felt and reduce reflections from the otherwise abrupt change of impedance?
planet10 said:you will also note that is has an odd number of points and the number is prime
EC8010 said:Should I also assume that the pipe's cross-sectional dimensions are related by the Golden Mean or some other suitably irrational number?