Iloydelee, when a piece of gear, specially a transducer, is inserted into the system, there's a tendency to play louder than usual. I've noticed that late night sessions, at relatively lower volumes have become more satisfying as well with the addition of subs for the reasons you've stated. Never having owned a speaker that can do a true 20hz, listening at lower levels and at the same time clearly hearing the subtle low frequency detail is a revelation.
100% Agree...enjoy!!!