giovanni56 Posted June 12, 2022 Report Share Posted June 12, 2022 Quote Link to comment Share on other sites More sharing options...
Pete B Posted June 14, 2022 Report Share Posted June 14, 2022 Thank you for these measurements. These mids have a sealed box HP electro-acoustical response that is only slightly off from a Butterworth (B2) alignment. Fs or really Fc is the -3dB frequency and the Qts is .66 to .69 with .707 being Butterworth. I've said this before but might as well repeat it here, a Linkwitz-Riley 4th order alignment has been called Butterworth squared because the 4th order response is the cascade of two B2 HP filters with the same Fc. If the crossover is B2 (Q=.707) with F3 about equal to the Fc of the drivers then it would be a Linkwitz-Riley crossover. This could be by coincidental or one group knew of the other's work. What is clear is that AR moved the Fc of the mids to roughly match the crossover point and that is a good thing. Quote Link to comment Share on other sites More sharing options...
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