Just FYI Rusty,
My M80's are set to small with crossover @40hz. This is for movies and all channel music listening.
Lately I have just been listening to music in 2 channel mode pure audio (no sub, no audyssey) and the M80's produce nice clean, accurate bass.
M80's, QS8's, M22's, CHT SHO-10, Dual CHT SS-18.1's, Onkyo NR3008, Mitsubishi WD-73740