Reasonably sensitive speakers for tube amps, max $2k/pair, new or used


While this topic has been covered before, I'm interested in both recent experiences with new products or anyone who just would like to chime in.

I have a couple friends interested in tube amps, lower wattage -- 40 wpc or below. Before they pull the trigger there, they need to find the best higher sensitivity speakers they can, hopefully at $2k or below, new or used.

QUESTION: What high sensitivity speakers would you recommend to them, new or used? What did you try and NOT like?
Characterizations of their sound, experience with a trial period, the company, etc. appreciated.

I'll pass the best answers and links along to them.
128x128hilde45
Klipsch Heresy IIIs...if you can find a pair they'd likely be well under 2 grand. I tried the IVs and Dirty Weekends last winter and rejected both and kept my Heresy IIIs. Great speakers.
@jjss49 Very educative primer -- thank you. Both of my friends have subs, so looking for an efficient speaker that doesn't *try* to do a lot of bass would probably get them a bit more bang for their stand mount buck. Not sure which of the speakers suggested on this list so far are willing to just forego the promise (to the customer) of a very low bass end, but that would be interesting to sort out.
They only cost half what you want to spend and don't match everyone's asthtitics but Caintuck Audio lil 15  would be a great match so for low power amp with 97 db effientcy and open baffle presentation. Lots of reviews on the decware site

@jjss49
Outstanding explanation about the pitfalls of efficient speakers. It’s great to have someone on this site that actually knows what He/She is talkin’ about!!
There will always be Exceptions to the rule. Case in point...
Emerald Physics Open Baffle speakers, specifically the 3.0 and up offerings
I have 3.4s which combine a 12" woofer with a 1" concentric polyester tweeter (~97dB), plus, a small amp friendly load. Amazing value for sure (see my Virtual System for picture). In most 'normal rooms' they will be all you need, but mine is far from that, so I supplement with 2 SVS powered subs