A quick update after getting into BEQ....these subs are superb handling low bass seems to be a walk in the park. I tried wonder woman as an example with BEQ and the bracelet scene was like a bomb going off in my room. The FV18s are really shinning in the deep bass dept with anything I have thrown at them.
Subwoofers: Dual Rythmik FV18s Rev2 with Paper cone, BOSS Platform mini riser
Speakers: PSA MTM-210 L/C/R - Klipsch 250S Surrounds, PSA MT 110sr Rear Surrounds, 4 x SVS Prime Elevation for Atmos
Video: Epson PowerLite Home Cinema 6500 UB; Room: 2100 cuft sealed on suspended floor
Receiver & Players: Denon X4400H, Oppo UDP-203, Roku Ultra. Apple TV, Minidsp 2X4 HD