Wayne Parham Messages: 18791 Registered: January 2001
Illuminati (33rd Degree)
I agree with Mike that conditions and requirements drive the design. For example, I like M=0 for lots of reasons. Most prefer exponential/hyperbolic horns with M > 0.5 for bass, as they can be made to work well in a relatively "small" size. Overall size and radiation angle are major determining factors here.