I researched this topic before posting, but my efforts were fruitless. However, I’ve done some additional research. A different forum had a similar post from 2013 and the consensus was that only old tube amps had 16 ohm taps. Looks like maybe the new Line Magnetic LM88iA has them. That’s about all I’ve found. Didn’t realize it would be so hard.For starters, just about any amplifier with Magnequest output transformers can be strapped for 4, 9 or 16 ohms. That’s what’s in our NiWatt amps.
Amplifiers with Intact Audio (Dave Slagle), Tamura and Hashimoto output transformers can typically be strapped for 16 ohms.
I’d invert my search - starting by looking for amps you like, and then contact the manufacturer. They may have neglected to publish the output transformer wiring options.
Cheers,
Thom @ Galibier Design