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Old 22nd March 2012, 03:15 AM   #1
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Default Help me design push-pull speaker system

People that have used push-pull designs for reduced distortion are happy with them. Other people say it is not worth it but they have never tried it!

I believe 2 speakers mounted facing cone to magnet would work well for low frequencies but get some comb filtering for higher.

What about mounting them somewhere between 90 degree and 180 degrees with the smaller angle working better for high frequencies. You get a mechanical high pass filter to cut distortion in addition to the even order distortion reduction. Note that this system will use several drivers of different sizes with WAF ignored in the pursuit of audio excellence.

I have not been able to find posts on this subject but sure there must be some on some forum.
Thanks,
Ted
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Old 22nd March 2012, 07:51 AM   #2
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Quote:
Originally Posted by ted4412wilt View Post
People that have used push-pull designs for reduced distortion are happy with them.
It reduces 2nd order distortion. 2nd order is pretty benign. If you lower 2nd below 3rd, you may not get as good sonics.

I like using 2 woofers, but usually push-push.

dave
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Old 22nd March 2012, 05:26 PM   #3
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I'd be careful how high you push a push pull sub. Yes you can have them at 90 degrees. I think ev did this.

They sound awesome. Ideally the drivers are 1/4 wavelength away from each other for the distortion reduction to happen.

Check for push pull on the subwoofer forum here.

If and when I build another sub, it will be push pull. Whether it is ported, sealed, 6th order boosted, it will be push pull.

Norman
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