I agree with Rebulx. The M100s have plenty of low end and are perfectly fine playing 2 channel stereo without a sub. However, adding the sub allows you to adjust the crossover on the M100s so they don't have to handle the lowest frequencies. I've toyed around with mine in a 11000 cubic foot room and while they sound good in 2 channel stereo adding the sub takes them to another level. I listen to mine at high volumes so I can't wait to see what they can do once I add a ADA-1500 to the system.


LFR1100
VP180HP
EP600
M3 In Ceiling x 4
M5OW
M2 - Atmos rears
ADA1500.5
M3 Outdoor Speakers
ADA 1000.8