I moved the 600 from front left, which was more open, to front right, which is closer to a corner, and it has helped broadcast the sound further into the room. Sound now carries into the other half of the basement which is all storage area.

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