In Reply to: Active filters posted by Bugman on January 14, 2003 at 20:03:42:
I did an IC active crossover a while back, and it was based on op-amps. It was really a "napkin" design, in that I didn't spend any real time on it and it was more of an idea or direction - A demonstration of the kind of filters I would use. But it was a valid circuit diagragm, and would work quite well.More recently, I did a triode active crossover based on the 6DJ8 tube. Actually, I based my work on that of Steve Bench, mostly because of a specific request about this particular design. But I have modified the filter characteristics in a manner that I think is quite significant.
The 6DJ8 crossover is supported by Spice models that allow the person implementing the circuit to tailor it specifically to their application. That was my main focus with this project.
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