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upgrading speaker crossovers

I have a pair of PSB Stratus Gold'is and I am thinking of upgrading the crossovers, I am going to try this before I think about buying new speakers., which are in the area of $10000. The crossover in a speaker consists of 1-2.5mf 440vac film and 1- 6mf 440vac film by RC. then I have 4 100mf 100vac electrolytics. Why are the elecrolytics there, is this because of cost? I would much rather put in polys in their place, which will cost me $30.00 each. So my question is are the elecrolytics there because of cost issues if so can I change them to ploys?

My equipment consists of conrad johnson PV14l tubed preamp and a conrad johnson MF2500 amp. Both are right now at cj to be upgraded, the preamp is also getting teflon caps. I also have a pair of Mirage M1;s that I have upgraded with SI tweeters and Woofers. Must have gotten the last ones from them because now they will not even talk to you about the speaker when you call.

Anyway any advise on upgrading the crossovers would be greatly appreciated.
jchristilles

Showing 1 response by magfan

magfan
1,583 posts
 
Timlub is correct about inductors.
However, replacing an iron core with an aircore is not a bad idea, especially in the woofer end of the circuit.
At the same time, it is a Very good idea to match the DC resistance of new to old.
My inductor design for my Maggies is within 5% of 'stock' while going from 16ga to 14ga. This buys power handling, reduces any chance of saturation to near zero while not messing with driver balance or crossover frequency.

The advantage is that aircore doesn't saturate like an iron core does. This will be of most use to those who like it loud....no....louder.
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