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ESS AMT1 Recap: What are the cap values supposed to be?

Raccoon1400

Super Member
I'm working on a pair of ESS AMT1. One cap is a different value in each pair of speakers. It looks like there are a few versions of this crossover and I'm not sure which caps are original so I'm having trouble figuring out what the values are supposed to be.
Each speaker has two 100uf caps in series. So this position is 50uf.
The other cap is 20uf in one speaker and 16 in the other.

A couple caps are visibly shot so a recap is mandatory.
 

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I've also seen pictures where both caps are 20uf. In this case, the woofer crossover point is 639Hz and the tweeter crossover point is 726Hz.
With a 55uf cap the crossover point is 385Hz.

Which makes more sense? Seems it would be the 20uF cap for the woofer?
 
To the schematic, the 20uF capacitor is the series high pass cap for the tweeter. The 55uF cap is a parallel shunt capacitor for the woofer. Two 100 series caps were probably used to increase power handling. And to me, the 16 cap is the odd duck. I'd stick to the schematic and just use the 20 and 55 values, in both speakers. I wouldn't use multiple caps together either, since modern caps have higher voltage ratings, and would withstand high wattage playback.
 
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