Why the hate for mcintosh amps?

unsound,
Just because other manufacturers of SS amps don't use it doesn't make it wrong. It has practical advantages, and to some people, like myself, it sounds better than Mac amps that don't have autoformers.
There are many technologies that aren't widely used. It doesn't make them any less valid.

@roxy54 , Your points have merit. But, the only practical advantages were over 50 years ago when in the early days of ss amplification transistors weren’t very durable. Those days are long gone. Autoformers in ss amps for the last 50 years only serve to compromise one of the advantages of ss amps with typical dynamic speakers, that of adapting power requirements with impedance load. I wouldn’t dream of arguing with your preference,. But “in my humble opinion” such an application is just plain stupid.

I understand your point unsound, but I would like to ask if you have been able to listen to a Mac with and without autoformers.

@roxy54, Yes.
  I answered the OP’s question. And while I don’t care for the Mc sound, I don’t want to just keep dumping on them. I think I’ve said enough.

Unsound, you said:
"Autoformers in ss amps for the last 50 years only serve to compromise one of the advantages of ss amps with typical dynamic speakers, that of adapting power requirements with impedance load."
I didn't understand that comment, as the autoformers do exactly that; that is, they allow the amplifier to deliver full power into any impedance.