Eric

the idea to switch it to 4 ohms is very important.. The M80's also needs lots of watts to give a real good bass sound. On your Outlaw, can you switch the M80's to large or small? Make sure it is set to large. Also, I don't think you need 100 hours of break in.. Anything past a few hours seems to be more you getting used to the sound rather than the speakers actually sounding better.

good luck! if you fix it, less us know now!