Ajani

Certainly that seems like a good suggestion because as I noted - if Highish efficiency has been tantalizing then look into speakers that fit the mold. I have not heard the Zu line but in general these would be speakers I would gravitate to all else being equal. I still prefer a two driver two way sort of design over using more drivers so perhaps the Omen or Essence would be more interesting - though of course I would not say until I heard them. The specs certainly seem to suggest an easy drive and those I know who have heard them describe them as fun. This reminds me of my own Wharfedale Vanguards which are also dead easy to drive being mostly in the 10ohm range 95dbsensitive.

I try to list 5 or so makers because they're not all available in any given area.

I also forgot to mention Acoustic Zen which make very good speakers in their price classes and were run with modest power Tri amplification.