I had the NX-Otica's for a number of years ( first pair built after we sent the initial prototype to Danny) and have now owned the Super 7's for approx a year. One is not better than the other, they are actualy quite similar in sound assuming you add subs to your NX-Otica's. The mid-range is different, it is slightly faster and slightly more detailed with the Neo 10 of the S7's but, they give up some warmth/musicality to the NQ mids of the NX-Otica's. Not as much reach needed by the subs either as the NX-Otica's will reach down deeper before bringing inthe subs.
Agree with Tyson too, the Neo3 in an OB config behind the deep waveguideis hard to beat . Had 2 models with closed back Neo3's previously and really liked them, but, opening up the rear side after being physically aligned withthe voice coils of the woofers is a big step up
Love my Super 7's but miss my Otica's at times too
jay