Quote:
formulas... i think the Excel sheet is good, there is a coefficient from 1 to 8 in calculations that is used for lowering dimension of horn in order to create "bass" horn positionable in the corner of a room. For stand alone, pure horn this coefficient is 1, with this the horn is the bigger possible. curious thing is that if you calculate an horn with 1200 hz or higher is really tiny!
Interesting about the coefficient, but like I said a mid or in particular a tweeter needs to be tiny at 1 wavelength so they must be exact multiples of a specific frequency at the starting point. For instance based on 340m/s speed of sound in air, 800hz would have a wavelength of 425mm but at 10khz it would be only 34mm and would have a LCD (least common denominator) of 1. This also doesn't compensate for the sound actually traveling through the Aluminum which result in respective wavelength of 7900mm & 632mm and creating some synthesis based on the coupling to the transducer... So I am still confused how it works for a range (800 - 10k)??? My hit is the exponential or hyperbolic curve is what allows that range, but there has to be some Guess and By-golly in it to tune it well?? Probably making this Way to complicated!! :sweating: