High Efficiency Speakers Your top 3 or more

Loth-X Polaris
Klischhorn

Haven't heard anything else in that league.

How highly efficient?

Is 89-90 db enough? I think that gets you into the ballpark with most good tube amps. Or are we talking only horn loaded or similar designs much higher than that?

Let's say 92 db or higher and preferably at least 6 ohms avg. Single ended triode stuff.

Tannoy 215 DMT II
Infinity Prelude MTS

I have not heard many like that actually.

Some I would like to hear are Avantgarde and Classic Audio Reproductions (I think their horns qualify though I do not know their efficiency specs).

Cardersound is a reasonably priced line that I would like to hear.

Of course the usual culprits, the Klipschorns (the only ones I have actually heard though its been a while).

The thing with these very high efficiency horns is they tend to be BIG! You have to have the right room for a lot of them, althoughif WAF is not a concern, I've seen some monster horns fit into pretty tight quarters!

Also Cain & Cain Abbeys. Very slick looking!