Quick question...

If you hook a mono amp upto regular speakers will anything come out of the speakers?

Reason I ask...I got a "blown" MTX mono amp from a friend. Powers on fine and I hooked it up to a regular 6 1/2 speaker and no sound, so i figured this amp shitted out. Then tonite i was thinking....maybe its cuz i hooked up a mono amp to a high speaker? Any thoughts?