4343 polarity & wiring

[Rolf]

Thanks, Rolf. I'm planning to do so in the near future as soon as I get the active crossover network and an additional amp. Do you want to recommend any particular X-over?

I don't think I know enough about active x-overs to give you any advice. I use JBL/UREI 5235, modified by Guido in Germany, witch I also bought the speakers and new CC network from.