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Multi-Way Conventional loudspeakers with crossovers

Impedance compensation
Impedance compensation
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Old 7th May 2006, 04:07 PM   #1
DR ANALOGUE is offline DR ANALOGUE  Austria
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Question Impedance compensation

Hello,

As I am developing a frequency crossover for the first time I am not sure which deviation of impedance is acceptable.

I enclosed the measured graph: The red line shows the compensated impedance. Blue, without compensation.

Firstly I would like to know if the minimum at 34Hz is a problem. The x-over frequency hould be around 250Hz-300Hz. I tried to modify the LCR, but the bump at 34Hz can not be avoided without causing a problem higher or lower.

Secondly, I damped the resonance of the cabinet. Still there is a slight inconsistency at 170Hz. Does this cause problems?

Thanks for your answer!!!


Kind Regards
Michael
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Old 7th May 2006, 04:51 PM   #2
richie00boy is offline richie00boy  United Kingdom
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Impedance compensation
It looks OK to me. I would not worry about compensating the lower impedance, it only matters around the crossover frequency.

Try to use PNG format for line images in future, it compresses almost as much as JPG but doesn't create the nasty artefacts.
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