MCACC does not EQ your subwoofer. Even "Advanced MCACC," found in Elite receivers, does not EQ your sub. My main AVR used to be an Elite 21TXH with adv. MCACC. Once I switched to an AVR with Audyssey MultEQ XT, my sub integrated with my mains much better, and audyssey did a great job correcting for different seating positions where bass sounded too boomy.
ht Panasonic TC-P60ZT60, Monitor Audio: Silver RX6, RX Centre, Radius 90HD; Martinlogan Dynamo 700, Marantz SR5006, PS3, Oppo BDP-103D
2ch Marantz PM8004, Sony BDP-S1000ES, JVC T-X3 tuner, Monitor Audio Silver RX1, REL T3, Apple TV, Peachtree Audio DAC•iT
lr Panasonic 50ST60, Sony BDP-S5100