I notice that some of the JBL crossover schematics, like the 3133, have a strange looking L pad drawn in for the 2420 level control. My assumption is that it is actually a stereo pad with the wipers connected together.

I guess that this was done to present a somewhat constant DCR to the preceeding components.

I haven't actually seen one of these crossovers, could someone confirm that this is indeed the case?

Charles.