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In Reply to: RE: Series vs Parallel XO & Maggie Physics. posted by DrChaos on July 17, 2010 at 10:59:56:
If anyone's interested here's a measurement I did a few years ago. (Copy/paste the link into your browser to see a larger version.)http://orion.quicksytes.com/content/mmgxcoup.jpg
This test was exactly as I described.....the woofer xducer of my MMG driven with pink noise and my spectrum analyzer monitoring the tweeter xducer. (A differential measurement that shows exactly how much voltage is induced in tweeter by driving the woofer.)
The blue trace on the bottom is a reference with the measurement channel inputs shorted together to show the baseline "noise" of my test setup.
The red trace at the top is an Adire DPL-12 (dual voice coil) woofer with one coil driven and the other monitored. A theoretically perfect motor/generator would yield a flat trace at 0db over the full frequency range. At higher frequencies you can see it's pretty close to "perfect."
The yellow trace is the measured response from my MMG tweeter xducer.
Interesting results eh? :)
Cheers,
Dave.
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Follow Ups
- RE: Series vs Parallel XO & Maggie Physics. - Davey 07/17/1012:29:38 07/17/10 (2)
- IM distortion - mäç 13:28:23 07/17/10 (1)
- RE: IM distortion - Davey 14:55:01 07/17/10 (0)
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