The lowest note on the bass guitar is 28Hz. Neither the M2 nor the M3 will get down that low and remain linear. In fact, very few speakers will.

You are best off to go with the M1 and buy yourself a sub that can hit 28Hz cleanly. That's what I did with my audiobytes and as I said, they sound great! It doesn't have to be an expensive sub. Mine was $150. You might be able to find a good used one.

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated