Hi!
This is my experience with 3143 upgrade.
First I must thank Mr Grumpy, Mr. Widget about coils and hjames on how to re-use honey wax on the crossover.
Parts used:
I core Mundorf for woofer and Air core for the rest (all Mundorf)
72uf Solen PB series for Woofer
52uf Solen + 4uf Evo Silver Gold Oil and 20uf Solen to ground for Mid
4uf Mundorf Evo Supreme and 13.3uf Evo Oil for High
1.5uf + 1uf Obbligato Premium Gold for Ultra High
Wired all with Solen silver plated copper teflon insulated
First picture must have this one with original crossover with all wires identified becouse I have found that the picture that is going down the web includding this forum is wrong with the 20uf connections.
Hope this can be helpful
and here is the one that is wrong
New technology - old school
upper side:
Testing crossover: