Speaker Asylum General speaker questions for audio and home theater.

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Re: Speaker Nominal Impedance or DC Resistance for Xover Calculation

Posted by Curtis J on October 21, 2005 at 01:21:42

In Reply to: Speaker Nominal Impedance or DC Resistance for Xover Calculation posted by diyxover on October 20, 2005 at 17:24:08:

Use the Speaker's impedance to fiqure out any connecting
circuit.

Then again, what frequency do you use to measure for
the 'impedance'; low end, middle, high end ?

Low frequencies have less 'inductive-reactance'Xl, per say;
but more mechanical 'resistance'.

Mids have more Xl and less mechanical resistance,
Highs have the most Xl and least mechanical resistance.

So, we would tend to choose a 'mid' frequency for measuring
a speaker's 'impedance'.

But may we suggest using band-pass circuits instead of any
cross-over circuits. (email for sample circuits)

CJ

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