I am planning on crossing over my M80's at 60 Hz. My room has a resonant peak at about 63 Hz. I use a dbx 31 dual channel 31 band graphic equalizer to tame this peak. The Outlaw RR 2150 has a bass management selector switch which allows the cross over to be at 60,80, and 100.

I now have JBL S38 speakers which work fine with the 60 Hz crossover point and the dbx equalizer.