Best high-efficiency speaker under 10K


I have never played in the high-eff speaker / low-powered amp space, but I've read so many things that I would like to give it a try. I own an EAR 859 integrated amplifier, De Paravicini's interpretation of SET. It's pretty incredible, especially if you consider its price tag. I am now in the business of choosing the right speaker. I listen to a lot of jazz and vocals and opera. So, I can do without the sub-40HZ frequency range. I would like to stay between $3K to $7K, certainly below $10K. Here are the options i am considering:

1) Zu Audio Essence.
2) Beauhorn Virtuoso (single driver)
3) KCS louspeakers (the model that uses the SEAS exotic driver)
4) Devore Gibbons 8
5) Living voice Avatar

If I had to choose right now, I'd go with the Beauhorn, but I know their limitations.

Any thoughts/personal experiences with the above or any other speakers in this range? Thanks.
ggavetti
I was on a similar quest and went to RMAF to listen to some of the choices. The 2 best I heard were the Devore Gibbon 9, I did'nt find them soft at all. They do'nt look exciting, but a lovely neutral, musical sound, I could have listened to forever.
In the end, the Devores were pipped by Daedalus Da-Ra Mas, a better sound in that it was quicker, more dynamic and excellent value at the direct from the manufacturer price. Lou the manufacturer is great to deal with too.
I agree with Newbie about the Silverline Bolero. I really enjoyed liastening to them at RMAF. I just think they have got a bit expensive, in the latest version.
I have owned the following (love the high sensitivity speakers)
Beauhorn, Lamhorn, Exemplar horn, Tonian TLM (original model), KCS Seas Exotic, and currently use the Tonian Classic 12.1s.
I have listened extensively to several Horning models (Alkabiades, Agathon Ultimates) as well as the Gibbon 9's and silverbacks and the Living Voice Avatar OBX

All these speakers, and several of the other mentioned, have great qualities.
I love the Hornings but find they like to be played a bit louder than some of the others to really gel but boy are they nice.
I prefered the lamhorn with the AER driver to the Beauhorn with the Lowther in my systems (used severl different amp preamp combos...mostly all SET 45,2A3, 300b, 845 based) but both are very good

The KCS are great and definately a value winner....I had the ones with the original single SEAS driver but see that John now has a version using the RAAL ribbon...I bet these are great

For me, I love the Tonian's with the modified Raven ribbon and Phy drivers....just a great, musical take your mind off anything high-fi speaker...seem to me, in my system, to be less overall compromised than any other I have had or heard.

I run mine with a Berning ZH230 (the new one) and have what I think is the best sound I have gotten in my room.

I think you would do well with any of these speakers if you really pay attention to your own preferences, put them into the right system and then just enjoy the effortless, musical sound such transducers are able to convey.