Class A Solid State Sound

JA - "The output impedance (including the series resistance of 10' of speaker cable) was on the high side for a solid-state amplifier, at 0.16 ohm at all audio frequencies."

Topology is by far the greatest determining factor in how a transistor delivers current to a load.

Given similar topologies it’s the final stage, "the output stage" that will determine how much current will flow into low impedance loads.
Complimentary class-A/B devices of the same pair numbers, the BJT will deliver far more current into low impedance loads than a Mosfet can.
Again end of story, your making yourself look ****** by saying anything else.

None of this shit has anything to do with the way an amplifier sounds into normal loads. If you are dumb enough to buy Wilsons then you deserve what you get. Ugly enclosures with crappy drivers and ridiculous cross overs.  

@Kosst_amojan, I disagree with your take on the way Pass Labs specs their amps. The independent measurements aren't confusing, the labeling of Pass Lab's specs are.  Nelson Pass's labeling of specs though still then confusing were at least less so with his previous Threshold branded amps. That Pass Labs declines (even upon request) to spec their amps into 2 Ohms quietly speaks volumes.