Hey Ked. I'm running the MSB Select DAC directly to the Mayer 300B. As you know, I used to have the Mayer 10Y Silver line stage. After extensive listening with the 10Y in the chain and without, I found a slight preference with going direct from the DAC. I know this is sacrilege for many, and I have concluded the same through trial several times over the last 30 years I've been in this hobby, but in this case I came to a different conclusion.
Thomas Mayer 8w's can certainly drive the Trios spectacularly. I do not listen to alot of classical. I wish I was better educated about it, because classical music really appeals to the mathematical part of my brain in the same way that Tool does. That said, I listened to a fair amount (for me) of classical since acquiring the Trios and again during the last two weekends of comparison. The way the orchestra "swells" during fortissimo and the massive space conveyed through the Mayers leads me to conclude that they are more than capable of driving the Trios. In this regard...the "swell", the space and layering, they exceed the iTron.
Any curiosity to try the Mayer preamp again, considering that this is a completely different system, and happens to be an electron microscope?
Or do you feel you are pretty much done?