60's? No, she is used to the detail, Mary needs the M80s.

Mary have you tried boosting the bass on your receiver by about 3-4 db(the M3 FR curve is about this much), or you could move the M22s closer to the wall to help re-enforce the bass from the port; maybe even try both. It may help the sub blend better and make the M22s not sound thin.

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70