Thanks. I need to do my homework following this and
@Jim Audiomisc's links. Before I put a wet towel on my head and start trying to remember what most of this means, can I check 2 things?
When it says: 'no variation in current is assumed here' that is obviously across the body of a capacitor, but are assuming the capacitor is being vibrated while itself getting a constant current? Also, when using music and listeners, they concluded that there was No Effect, but were they only testing for SQ differences from changing one capacitor in the HF crossover of a speaker?