In Reply to: Magnepan SMGb posted by psonderman on March 6, 2007 at 07:01:42:
If you set the Q of the 2nd order low pass filter to 0.5 (L-R configuration) then the inductor value calculates to 1.56 mH with a -6db corner of about 530. The 1st order hi-pass has a -3db corner of 1475 Hz. The crossover point then works out to 830 Hz (down 6db) with a fairly flat output curve(assuming the drivers are "phased-aligned"). The SMGa crosses at ~800 Hz so I think the 830 estimate is probably correct. The only way to know for sure is to measure the inductance of the coil.I may be an egoist but at least I don't talk about other people.
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Follow Ups
- Educated guess - neolith 07:15:13 03/06/07 (0)