This started happening a couple months ago, running a Hertz EP4 in 2 channel on a pair of Hertz mids, highs, and crossovers. (I honestly don't remember the model its been so long sens I looked at them) The deck is a DEH-80PRS, fronts are crossed in the deck at 80Hz with a 12db slope (trying to eliminate this issue) and the amp is wide open. No settings have changed, but now when certain mid bass frequencies play in tracks, they come out of the tweeters as well, completely sounding like **** and distorting everything. I don't think the tweeters are blown, because songs that don't have certain mid bass frequencies play perfectly (mid bass actually comes out of mids and highs are clean). So im kind of at a loss here, my first assumption is that the crossover is bleeding through (perhaps they're blown) but I really don't know.
Any advice would be awesome, im happy to test any suggestions.
Thanks and I hope you're all enjoying your Christmas