Future of analog controlled class 'D' amps?

You could never have a Universal Class D tube amplifier?

UcD = Universal class D. which is a technology, not a company, invented by the man who wrote the article I linked to.

I think Bruno was much too pesimistic, a couple of companies have purchased a license to this technology and I'm sure there will be more to follow.

Some will want to make their own audiophile grade class D amps from scratch. Can you imagine ATC deigning to license technology from another company?

BASH is a digital switching class D based architecture developed by a company named Indigo. Several manufacturers have licensed it. Polk is now using it in their LSI subwoofer.

Yes, I did mean class 'A' transistor amps.

Do BASH amps use digitally controlled or analog controlled class 'D' amps? BASH is spreading in subwoofer amps in the consumer grade.