I’ve varied between a 40/60/80 crossover for my 3 M80s L/C/R depending on the situation. Right now I’m using 80 because the SVS AS-EQ1 actually makes the bass sound much better with the EP500 than the M80s alone. W/o the SVS AS-EQ1 I use 60Hz in this room since I hear no advantage to going lower. In my apartment were I sat 6-8 feet away (not like 11-12 now) I could better feel the mid-bass punch by lowering the crossover to 40Hz across the front.
In any of the cases I’ve never shut down or clipped my Denon 2807 at 6-8 feet or Onkyo 3007 at 11-12 feet playing at and average 80dB calibrated level.
I think what works best is very room/seating location dependant and best determined by experimenting.
Dean
