Crossover freq. variance with impedance

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07-16-2003, 08:36 PM

#11

Dave

50 Watt CAFz'r

Join Date: Feb 2003

Posts: 327

ok here is a question.. doesnt the impedence of the speaker change from frequency to frequency?
So if your trying to figure out what frequency to set the crossover at couldnt you be way off if the impedence is really high at the frequency you want the crossover to be at?

or do I have it completely wrong?

07-17-2003, 10:39 AM

#12

Canadian Mofo

500 Watt CAFz'r

Join Date: Nov 2001

Posts: 639

Yes the impedance does change with frequency too. I think they are looking at the overall average resistance.

L.

07-17-2003, 01:13 PM

#13

DaDude

50 Watt CAFz'r

Join Date: Jul 2003

Posts: 57

Lardass,
If i send u an envolope with a stamp and another envolope in it will u send me a coupon for a free chicken dinner?

07-17-2003, 01:22 PM

#14

Paul Niwranski

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Posts: n/a

Quote:

Originally posted by Dave:
ok here is a question.. doesnt the impedence of the speaker change from frequency to frequency?
So if your trying to figure out what frequency to set the crossover at couldnt you be way off if the impedence is really high at the frequency you want the crossover to be at?

or do I have it completely wrong?

While a speaker's impedence IS constantly changing, through the 'operating range' of the speaker it stays consistent enough to design a xover by. If you are extending too far up into the frequency range of the driver a Zobel can be added to help out.