My Coincident Total Eclipse II speakers have one tweeter capacitor (Very simple 1st order crossover). There are no resistors. The stock capacitor is Solens. The sound quality in stock form is very, ,very good.
Replacing the respectable Solens capacitor with the Duelund CAST copper foil capacitor was an undeniable sonic upgrade across the entire spectrum. It is one of the most rewarding and cost effective modifications I've experienced. An expensive capacitor that was more than worth every penny paid. High quality crossover capacitors definitely make a positive impact.
Charles