Since the woofers are internally powered - I would try them w/o subs first.
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The speakers are so tunable I think you could make them work for either, but not both. It took me a long time to tune mine for audio and HT needs to be mixed differently thru the mids and bass.I would never put a sub in the room with these. They will kick as hard as you want if HT is important. If 2 channel audio is tops on your list, these are great speakers!
I run Magico S5's in my mixed 2 channel audio/HT setup which are a moderately difficult load & am quite happy with the bottom end. My current Vitus SIA-025 has plenty of power for 2 channel audio at the volume levels I listen at, though ideally i'd like a bit more control for HT duties. But rather than add an active sub or change amps, over the next 2-3 months I plan on upgrading to Magico S7's which dig down to 20Hz & are about 1db more efficient than the S5's, so they should be awesome in both disciplines.
Your EA MM3's similarly dig down to 20Hz & are capable of moving a lot of air. In the case of your system, I don't think you need subs unless you want to set up a full on HT system.