Ah! So much for my reading comprehension!
Your recommendation is a good one, but I think regardless, an amp upgrade is long overdue. But you’re making me think that I might need to incorporate a cable re-evalution at the same time.
What’s interesting is the fact that the amps sound the worst when fed by 100% Silver Apex cables. Yes, there are a zillion other factors that make each signal path unique in its own way, but still...
One possibility is that the Silver Apex segments sound the most Class D-ish because they’re the most revealing. Unfortunately, it’s not easy to swap them all out, since some have singular connectors, like the tonearm cable.
Regardless, I would hate to give up those expensive cables. They’re so impressive, even mind-boggling, in terms of presentation and detail. No other upgrade that I’ve ever made in this system has done so much to promote a broad, truly 3-dimensional soundstage. After I inserted them into the system, I could not stop listening to vinyl. The endorphin rush -- the thing that keeps so many of us in this hobby -- was intense.
I just hope that swapping a $2000 amp for an $11,000 amp produces as dramatic an improvement.