Plinius 9100 vs 9200

I own a Plinius 9100 which I bought used on Audiogon and am generally pleased with it for what I paid, but I'd like to upgrade to a better integrated. I listen to rock and classical. THe rest of the system consists of a benchmark DAC and Harbeth Monitor 30 speakers.

The Plinius is generally good with rock though it can be slightly harsh on the high end (possibly partly due to Benchmark). On classical music it lacks the subtlety of the (much more expensive) CJ tube gear I used to own.

Is the 9200 an improvement over the 9100? I have not seen a thread on this.

What SS integrated would improve classical performance but still have enough slam for rock?

THanks

Phil