So are they better than the Super 7s? I’m sure the triple subs are better. 
For me the Super 7's are better music speakers because the planar magnetic mid-panels have a detail, resolution and vivaciousness that nothing else matches. For the type of music I listen to (classical, jazz, electronica, hip hop), the Super 7's are perfect. They only have 1 weakness, and it's the lower mids/upper bass. The midrange panels just don't move enough air to be fully authoritative in this range.
The NX-Oticas are the opposite. The don't quite have the same resolution in the mids, but have far more authority and punch in the lower mids and upper bass. Which makes sense with all those drivers. They are probably moving about 10x more air, based on driver surface area and excursion.
The NX-Oticas do need a more powerful amp than the Super 7's. I can use a 6 watt amp with the Super 7's no problem. The NX-Oticas need at least 20 watts, IMO.