Speaker Asylum

RE: Woa, it's not this simple at all.

68.103.9.72

In Reply to: RE: Woa, it's not this simple at all. posted by Halcroman on May 14, 2008 at 18:45:09

Perhaps you should re-read the above reply & this time attempt to comprehend what was written. You cannot transfer textbook learning-tool resistance-reactance formulae to loudspeaker crossover design. That just does not work despite novice short-cut wishes to the contrary. Because dynamic drivers are not fixed-resistances (resistance is a measure of Direct Current such as operating voltage in an amplifier). Dynamic drivers are variable-impedance devices where the impedance varies with frequency (impedance is a measurement of Alternating Current such as the signal applied to a loudspeaker). You have exchanged two drivers which now makes this a completely different loudspeaker than it origianlly was (and exchanging just one driver would also do that); maintaining the same Bass enclosure makes no matter. Now, you MUST start over with the measuring & modeling process per this new driver combination & design a new & different crossover circut. If you do not bother to measure, you are in for literally years of trial & error experimentation plus frustration & yet never attain the goal you seek.

Madisound (scroll menu to Audio Discussion Fourm) (Open in New Window)

Edits: 05/15/08

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