High end audio is like a Patek Phillippe or Rolex watch that has a
mechanical movement. Electronic watches that are just as accurate are
available much cheaper so is Rolex a fraud?

No, it's just like comparing a CD player to a turntable. They will
both reproduce music, but the Rolex does it less accurately for a lot
more money.

The Hafler is an inexpensive, and unexotic amplifier which has been a
workhorse for mid-budget operations and a DIY upgrader's favorite for
years. It works well like (most) all the stuff David Hafler did. But
he
was never a high end vendor, he was never a Marantz/Smith/Sequerra or
a
McIntosh/Gow or what have you. His products were good value reliable
mid-price products and that's good.

All they have to do is reproduce the signal with inaudible distortion.

If it does that it's as exotic as it needs to be, nothing else is
required.

You think the Bryston sounds better but I bet you never did a proper
dbt to find out.

A lot of recording studios have QSCs, but then some have Carvins and
Peaveys too. If all amps sound the same, then I highly recommend the
Peavey CS-400 for low cost and ruggedness. So I guess Crown, QSC and
Bryston are ripoff artists for charging more than our friend, Hartley
Peavey. And Carmine and Vinnie in Escondido

It's a free market, nobody has to buy the more expensive unit. Do they
all drive difficult loads with the same ease?