High Efficiency Speaker Asylum

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Original Message

RE: No, it's audible.

Posted by Tre' on December 15, 2016 at 21:36:57:
The example was a .67uf cap in series with a 8 ohm tweeter. A first order filter.
The crossover point for a BW filter is the -3dB point and for a LR it is the -6dB point.
All first order filters are BW filters.
A .67uf cap in series with a 8 ohm tweeter will cause the -3db point to be 29,693 Hz.
From that -3db point on, the signal will fall an additional 6db per octave.
One octave below the crossover point will be at -9db
Tre'