You don't need to worry about any well-designed subwoofer being too much unless you run it excessively hot. When you set up your system, proper calibration will ensure that all your speakers play at the correct relative volume.

My Axiom system is based around M22s and an EP500 and I never get complaints from my neighbors. I am not a bassoholic either and rarely listen at crazy volumes. If you're really looking for full-range, this combination will not disappoint.