I am running Monitor Audio RX6 and centre with a Denon avr2200 and 2 SVS SB12 NSD subs. Have set floors standers on small and subs to handle 80hertz and below. Been working on my sound for 3 months so a huge learning curve. Sounds awesome to me. Adding thr second sub did something amazing to the system. Just not sure is that is the best setting for the gear I have?