oh, hum too. if you don't want to be passed to the tweeter. it will affect phase near the crossover which means it must become part of the crossover if it is to be seamless. this means more calculations as you will be forced to use a single 1st order stage and whatever else...
what kinda topology is the marchand? i assume something other then sallen-key? i've built plenty of sallen-key type filters. i'm lloking at the QIC for elliptic transfer funcitons.
check out this:
http://www.filter-solutions.com/active.html
download the shareware and use it for 30 days, you'll be glad you did. the help file is great, the filter software allows you to play around with just so much! and you can change values on the circuts to simulate tolerance and see how it changes the filter. you can look at pole-zero plots and input impedacne.
what kinda topology is the marchand? i assume something other then sallen-key? i've built plenty of sallen-key type filters. i'm lloking at the QIC for elliptic transfer funcitons.
check out this:
http://www.filter-solutions.com/active.html
download the shareware and use it for 30 days, you'll be glad you did. the help file is great, the filter software allows you to play around with just so much! and you can change values on the circuts to simulate tolerance and see how it changes the filter. you can look at pole-zero plots and input impedacne.
Thanks a lot for that link.
You might want to check their site.You can download the manuals and lokk into schematics they use.
It's: http://www.marchandelec.com/
Manuals are here: http://www.marchandelec.com/
I think XM26 and XM126 are units to look at
Bartek
You might want to check their site.You can download the manuals and lokk into schematics they use.
It's: http://www.marchandelec.com/
Manuals are here: http://www.marchandelec.com/
I think XM26 and XM126 are units to look at
Bartek
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