I just have the arc and thought at the start,wow,this is amazing,I really got to get the rears and sub.However,yesterday I sat down and watched the first avengers movie..there is a scene close to the start where the machine is powered up and Loki appears...the thing nearly blew me away
.I could feel the bass in the room rumbling away..I was just sitting there thinking Holy Sheeeeeet
...now I was probably only sitting a meter to a meter and a half away from it as the kids had the prime seating positions...I don't know if I could handle the sub or even need the sub tbh..room is 4m x 4m..I do fancy the surrounds allright though just for imersion