Questions regarding designing crossover circuit for multi BA iem:
1. Regarding RC low pass filter, is the direction of the capacitor flow from BA out to BA in? All RC filter diagrams I've seen had no indication on which side of the capacitor is the (+) or (-), so I'd like a confirmation.
2. Is it possible/practical for all BA drivers to share one capacitor? I've seen the tuning circuit diagram of a 2 BA iem build on Youtube, and the guy only used one 10 uF capacitor shared between both BAs, so I wonder if that is okay in order to save space within the shell.