For that size room, the M22s should be fine, especially if you're planning to use a sub. For most music(excluding pipe organ)the M22s which I have can do an adequate job on my classical music even without a sub(I have a weak, but still usable in-room response at 40Hz when used without a sub). Nevertheless, most would probably suggest the M60s for music without a sub. Your 1070 should have more than enough power for these speakers in your room.

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Enjoy the music, not the equipment.