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AA crossover output capacitor

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I remember seeing a post from Al K a long time ago where it was recommended to change the 2uf output capacitor in the AA crossover tweeter output to 6uf and disconnect the zener diodes. 

 

Has anyone tried this capacitor change?

 

If so what effect did it have?

 

Thanks.

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Don't do it. 

 

It makes the tweeter circuit look and behave more like a 3rd order Butterworth filter.  It also removes the eq built in the filter. 

 

For home use, if you have K-77-M tweeters and with careful reduction of the volume when switching inputs, you can remove the KLiP diodes. 

 

msg-43-0-73360000-1424308694_thumb.jpgmsg-43-0-11040000-1424308713_thumb.jpg

 

You can see a sag in the filter that corresponds to a peak in a K-77's response. 

 

If your speakers are sounding dull and/or laid back, you might need new caps, though. 

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Change to the Crites CT-120 tweeters and you won't have to worry about blowing the tweeters anymore, and you can remove the diodes, not to mention that IMHO the CT-120 sounds much better.

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Originally suggested by DJK (not Al). It smooths the overall response, but you must pad down the tweeter a bit. I still prefer the sound of the AA tweeter section, which actually works very well with the B&C DE-120, which runs at 106dB/2.83v

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44 minutes ago, Deang said:

Originally suggested by DJK...

 

Miss him greatly. Truly a voice of sanity on the forums, even though his demeanor seemed a bit harsh sometimes. He would go far out of his way to help you, too.

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Endless hours with him on the phone, he was a walking encyclopedia. 

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