Posted by Wayne Parham [ 75.60.114.159 ] on January 01, 2008 at 11:38:35:
In Reply to: New Year, New Place ! posted by Scott L on January 01, 2008 at 08:16:34:
Glad to see you here, and Happy New Years!
Since you've started a New Year's thread here, seems a great place to talk about new projects. Sort of like New Year's resolutions.
What's everyone working on? What are your plans for 2008?
Here are the top two on my list:
To expound on that last item, I've been talking with Keith Larson a lot lately and I'm very excited about this process. He has written software that improves on Spice models by allowing actual driver impedance to be used as a component. My Spice models for π Speaker crossovers model the driver as a complex load with Re, Le and tank circuits to model mechanical and/or acoustic resonance. They're pretty good models, certainly much better than what you get using a fixed resistance as a load value. But the ability to substitute an actual impedance chart goes a step beyond that and will let me have better visibility of the actual behavior of the circuit. With this improved visibility, I may be able to further optimize the crossovers.
I've started making measurements of the drivers on various horns, so you can download them here and follow along in the process, if you're interested.
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