help with tweeter compensation

zeus_threat · 3rd April 2008, 03:20 PM

I have a ferrofluid dome tweeter branded "Tave" with the attached frequency response. It will be crossed over at 5KHz with an active LR 24dB/Octave X-over. Any suggestion on how i could compensate the actucal frequency response (actively preferably)

Some of the tweeter data

Fres:1346 Hz
Qts:2.590
Qms:12.882
Qes:3.241
Inductance:0.046mH
L1 inductance:0.042mH
Series resistance:0.659Ohm
DC resistance:4.39Ohm

P:s due to my location its hard and extremely expensive to get better tweeters.

Thanks

LineArray · 4th April 2008, 01:08 PM

Hi,

you can apply a 6 dB Highpass Filter at 4...5 Khz and a notch
in series of the speaker for the peak.

Maybe imdedance should be equalized with RC parallel to
the tweeter.

Should work.

Saturnus · 4th April 2008, 02:55 PM

First I would try with a passive 1st order filter high pass filter at around 4½KHz, that will make the frequency response almost completely linear from 1½KHz to the massive spike at 12Khz. Not sure what to do about that though.

4th April 2008, 01:08 PM	#2
LineArray diyAudio Member Join Date: Mar 2008	Hi, you can apply a 6 dB Highpass Filter at 4...5 Khz and a notch in series of the speaker for the peak. Maybe imdedance should be equalized with RC parallel to the tweeter. Should work. __________________ Oliver, RFZ believer (?) www.dipol-audio.de

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4th April 2008, 02:55 PM	#3
Saturnus diyAudio Member Join Date: Jun 2005 Location: Copenhagen, Denmark	First I would try with a passive 1st order filter high pass filter at around 4½KHz, that will make the frequency response almost completely linear from 1½KHz to the massive spike at 12Khz. Not sure what to do about that though.

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