Please Recommend Highly Efficient Floor Standing Non-Horn Speaker Suggestions

Here is an Decware Lii Audio Silver-10 review 

https://www.youtube.com/watch?v=nKcfGAnGGqw&t

A friend has some older Lii Audio Crystal single driver speakers from Decware with a Riviera Audio Labs Levante Hybrid Integrated amp, one of very best amps we heard at any price and we both love these speakers a lot. They are one of the best speakers I've heard at any price. I like them better than Cube Audio they have deeper bottom end and better total balance and are more musical engaging. This guy likes them better than Cube Audio too. Lii Audio and Riviera Audio Labs could be my end game system.

 https://www.youtube.com/watch?v=ndoUs_1MahA&t 

Lii Audio Origin S-10 Reference Single Driver speakers, maybe the very best single driver speakers on the market now.

A few videos on the Decware Lii Audio Silver S-10's 

 https://www.youtube.com/watch?v=qVez8PTTeAI&t

 https://www.youtube.com/watch?v=ZMoVCjLN4DY

 https://www.youtube.com/watch?v=jKAk1pmWpi4

Prana Distribution has the highly raved Camerton Audio Binom 1.2 speakers and Binom-ER Headphones now.