Best SET Compatible Speakers, $4k-6k used

TWL's recommendations are excellent, as usual. He is experienced and competent. I haven't heard the Lamhorns, but in this price range I like Rethm speakers, from India.

If you're willing to do a little custom cabinetry, then PHY of France makes some excellent high-efficiency 16-ohm drivers. I chose to become a dealer for PHY because their drivers deliver a bit warmer tonal balance and more satisfying bottom end (in my opinion) than other high-efficiency full-range drivers. The PHY's are actually crossoverless two-ways, with a high-quality coaxial piezo tweeter filling in the top octave. The recommended cabinets are quite simple, and even a large open baffle can be used.

If you want a multi-way speaker with a crossover, and if your heart is set on a 45 SET, then I'd suggest you try to find speakers with a rated impedance of 12 ohms or higher. The Classic Audio Reproductions T-5 is a possibility, though I've never seen a pair show up used.

Best of luck in your quest!

Duke

Both are rare finds these days, but the ESP Bodhran or the Brentworth Type III are each over 100 db and are world class loudspeakers in the right system/room.

Yes, I forgot about the Brentworth. I have heard them and they are very good. I assume they are still in business as their website is still active. Worth checking out.

If you don't want a horn/lowther colored sound, I would recommend Spendor SP100. Presents a very stable 8ohm load and has relatively high sensitivity (over 90db). Very musical and emotionally satisfying especially when driven by SET amps. And last I checked, $3300 brand new.

Sorry my friend was on my site and typed in the Legacy and VMPS response. I do own both of these and have used them with tube amps but not SET. I apologize for the miscue.