Peter, as 2x6 indicated, what you're considering wouldn't work. The speaker level outputs you mentioned have nothing to do with the amplifier in the sub; if you had connected your receiver/amp to the sub with speaker wire rather than a line level coaxial connection those outputs would feed the receiver/amp power straight through to the speakers(full-range, no filter to speakers on the Hsu).You haven't indicated why you'd even be thinking of a separate amp for the M22s; unless your present equipment is very low-powered or your room is huge, a separate amp shouldn't be needed.
