Solid State Amplifier Advancements In A Decade

Ebm,
It should sound even better with those new speakers you're building.

If I remember correctly, regarding advances in solid state amplifiers, Soulution was claiming to have developed a new method of eliminating switching distortion, or something like that with a novel and new method. I'm sure someone who owns one of their amps knows what I'm talking about and can clarify, but when I read the explanation in an Absolute Sound, it seemed like something new.

Al,
I believe Tom Colangelo and one or two other associates started Viola Labs some years before he died.
It is significant to me that you mention the Marantz 2 amplifiers, (which I never heard), because I often compared the sound of more modern amplifiers in my system, with more up to date circuit topologies with my old Mac 2105, and then realized why they still command silly prices. They just sound really good. When all of the technology and casework is complete, it still comes down to what sounds good to the listener.
That said, I'm using an 8 watt 300b now, but I'll keep the Mac.