Please Recommend Highly Efficient Floor Standing Non-Horn Speaker Suggestions

Duevel (omnis and a novel take on horns, since you didn‘t want the classic drawbacks)

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

@rick2000 I have watched a few YouTube videos which show case the Lii Audio S-10. Have you heard them in the wild? If so what were you thoughts.

An audiophile friend just bought a pair and is raving about them, unbelievable bass, extended highs, super efficient need only 2-3 watts to drive them. A couple of caveats though; packaging from manufacturer is not sufficient and speakers being heavy need better packaging/cardboard, etc., cabinets do not exhibit the best craftmanship as they have some flaws in the cabinetry.

Good to know the SQ is at an audiophile level. I have a collection of flea powered amps and am interested in high efficient, > 97db 1w @1m speakers which also have stability with respect to impedance. At their price point one might accept a cabinet flaw. Poor packaging is a different issue.