New here...first post.?
I picked up a set of DQ-20 speakers to refurbish.? Woofer foams have already been replaced.
It appears that the crossovers have already had some work done to them too.? Can anyone identify what might have been replaced by the attached pics?? Does this look like a Regnar upgrade kit or some other?? Additionally, the fuses have been removed from the signal path.? Is this common?? To improve SQ?
They sound great when fed some power and a clean source.? Objective is to determine what else might need to be done to the crossovers, if anything.
Any help or advice is appreciated.?