Great 16 ohm Full Range loudspeakers

Zu Soul superply, 16ohm, 101db efficiency. I haven't heard them but I have other 12ohm Zu speakers which I like.

Duke, I will be at RMAF in October. what will you be driving your speakers with?

Pepe

Vandersteen 5A loudspeaker design has an even Imp load as well as (Hi passed Bi Amp)which takes the burden off the tube amp on the lowest bass with its own self contained internal bass amp and features adjustable Room compensation.
This gives us the tightest full range bass imaginable while allowing tube amps to recover faster last longer and sing.
Will work extremely well with these amps and there size is about the same or smaller as when you have.
Johnnyr

I will be showing with Atma-sphere and Neko Audio in room 1102, and amplification will be the S-30.

A local SD company makes Audience speakers.
The writeup in the local rag is pretty neat with some photos. Crossoverless, full range line array standing about 6' tall for 'only' 54,000$ and the 2 speaker bookshelf version for a mere 5 grand.

No matter what the impedance, they'll probably be a very benign amp load.