High efficiency monitors for SET amp in small room - budget 2.5k

Thanks for the helpful suggestions, Glen, a lot to chew on there. 

I've had my eye on a pair of the Audio Note UK AN-K/SPe for sale at $2,300, which look beautiful, are somewhat sensitive at 90dB, and nicely priced.  But my current setup is 86dB, and I'd like to get closer to the mid 90s to see how that pairs with my amp.

There is a Klipsch Palladium P-17b here on the 'Gon that would fit the bill.. I'm very curious as to what horns do, don't have a lot of direct experience with them, but I'm super sensitive to brightness in my system so I'm also very cautious about going there.  That said, I've also lost a bit of high frequency hearing, so horns might just give me something I'm missing.

I've also done some investigation into Spatial Audio - very very interested in these but a bit nervous about how finicky dipole speakers might be with proximity to front wall.  Given my tiny room, the speakers will need to be very close to walls.  I probably should have mentioned that initially.

I'm going to check out some of your other suggestions now.  Thanks for the input!

Hey ZM,

Take a look at my review on Six Moons.com on the Tekton Design Perfect SET speaker. I just spent about four hours last night listening to a pair driven by a Triode Design SET 2A3 amplifier, about 3.5 watts, and the music was beautiful coming out of them.  

I used a Tang Band 8" full range in a custom built cabinet being powered from a Schiit Aegir (20wpc) and really enjoy it. I, too, have a small listening room (11.5 x 14) so I'm in the same boat as you. I looked long and hard at the Omega speakers, via email they recommended the Super Alnico Monitor. I like a softer sound so for me it eliminated a lot of high efficiency speakers (like Zu). Another I was (still am) interested is the Decware HDT but I'm not a big fan of Fostex drivers.

AudioNote speakers are much more tube friendly then you think they state 94db but your correct with slightly lower spec at around 92db.  I drove my ANE's with 8wpc and they were very nice. also AudioNote is a tube amp manufacturer and  your amp is more then powerful enough for them. 

if you can grab a set they may be the best choice as they do bass very well for the size and are designs to be placed into a corner so opens up your room more if its already small.  

At $2500 that's a steel that wont last long if your inclined buy them if you don't like them you will get your money back out of them. 

Much better speakers then almost anything else close to the price and they are already depreciated fully. 

If you listen to chamber music and jazz in a small room why do you think you need high efficiency speakers? I think a LS3/5A sealed two way design would be nice with your amp. Harbeth, Spendor, Stirling, Falcon, etc. make real nice ones.
Do you want it any louder than this?
 http://decibelcar.com/articles/40-everything-else/87-dbequivalent.html