Need suggestions for a new amp 200Wpc

Take a look a the Tact M2150 or S2150. You'll get more detail, bass control, eliminate the preamp and save money on your electric bill.

With the ADC option, you can run the analog output on SACDs from your Sony into the ADC and connect the Sony's digital output to the Tact for CDs.

Stereo Time has a recent review.

Krell FPB 400cx or Plinius SA250 with the big Danes...

I would probably lean towards Krell

My opinion is that Krell FPB-as said as powerful you can get- or McCormack DNA 500, would suit your needs fine.

Pass Labs 250

Both have been mentioned, but you could do a Krell FPB 300 or the Pass Labs X250 for less than you mentioned and be over the 200 wpc mark.

I have the FPB 200 and think it's a great little (okay so it's not that little) amp and it will drive anything without four wheels.

The bass is full and explosively fast with the FPB series. There is plenty of reserve power for those difficult passages.

Unfortunately I am not familiar enough with the Dynaudio speakers to say which one of these two would work the best with them.