Did a "gross" impedance measurement of the inputs on my polk csi40 center channel speaker. It showed about 4ohms. Seemed kind of low. There are two midrange drivers and one twitter ... 2 way system.
All measurements at the drivers seem ok in the 4 - 6 ohm range (the two mid range are in series).
Anyway, in the crossover on the tweeter side, there are two caps in parallel basically leaving an inductor .... "nice simple setup", especially when no schematics around. The question is finding a replacement. One is a TI .47uf met 100vdc while other is a 9.1uf 50v electrolytic NP. I can find the .47 but not so much with a 9.1. I guess the question is what can the 9.1 be replaced with... a higher capacitance or lower... or can I just combine the values and find something with one capacitor that is close ... again higher or lower?
Thanks with any guidance on this, as for what I have read cross over design is almost a "black art"... :-)
All measurements at the drivers seem ok in the 4 - 6 ohm range (the two mid range are in series).
Anyway, in the crossover on the tweeter side, there are two caps in parallel basically leaving an inductor .... "nice simple setup", especially when no schematics around. The question is finding a replacement. One is a TI .47uf met 100vdc while other is a 9.1uf 50v electrolytic NP. I can find the .47 but not so much with a 9.1. I guess the question is what can the 9.1 be replaced with... a higher capacitance or lower... or can I just combine the values and find something with one capacitor that is close ... again higher or lower?
Thanks with any guidance on this, as for what I have read cross over design is almost a "black art"... :-)
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