LCR speakers are fine and the the one surround is mounted to header but the left surround is hanging on a stud on a blank wall so it doesn't have anything behind it to help with reflection. MLP is 16 feet. I believe the DB correction is 3.5 or 4 on the fronts the left surround is +8.5 and the right surround is +3. Denon is at -5.0 on movies. Music is between -15 to -10.

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