High powered amps for low sensitivity

This is a perverse quest.

High sensitivity/low power is the goods - do you have a friend who can let you hear such a rig - you may never go back...

Triode, I get where you're coming from... but not everyone needs to take the same path to musical audio bliss.

I feel both approaches can be valid so I'm not taking sides. Although you have a different preference, why discourage others from choosing another way?

Since you used "natural", have to answer Plinius. Dynamics without the dramatics.

Audiotomb-

You didn't say if you were looking for a tube or an SS amp.
It took me more than a few auditions and a while to find what I was looking for to drive my low sensitivity Totem Mani-2's (85db, 4 ohm), but eventually found contentment with, first, a Cary CAD-120S Mkii, and finally with a move to a pair of Rogue M-180 Monoblocks. Happy hunting.

Jerry

Try Wyred 4 Sound, SX 1000 mono's or ST 1000. Good sound, very articulate sound that is as good as the source material that feeds it. Way lower priced than the performance might indicate. They are over 500 watts into 8 ohms, stable into 4ohms. I drive Vandy 2CE's with plenty in the tank with plenty of room to spare. I also have KEF LS-50 (85db) and still easily fill a room with beautiful sound. I haven't tried ribbons on them yet, but as long as they aren't too low of impedence(1 ohm) they could sound awesome. I have heard their equipment on Magnapans and they are among the most difficult to drive to louder levels. It was the smaller 3 piece system they just came out with on their smallest amp(100 watts a channel) and the sound was still very liquid and engaging. Good luck in your search.