Some people like using a 60hz crossover for music. I have experimented with various combinations and found that I think 80hz gives me the best overall performance for HT and music. At 80hz, my M60's have supurb bass music.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85