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RE: Series vs Parallel XO & Maggie Physics.

A bit of group delay doesn't seem to do any harm. The ear is basically a spectrum analyzer -- lots of little resonators, with detectors in them. So the brain isn't seeing the waveform in the time domain, in essence it's sampling an RTA display and saying "OK, these are the frequencies that are present in this slice of time." As long as the hair cells are triggered at approximately the same time, the brain will conclude that the frequencies are arriving simultaneously. You have to accept some slop in the time and frequency analysis because of the uncertainty principle, if you measure exactly when a sound arrives you don't know what the frequency is, and vice versa.

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