Do i get the old or new Classe amps?

I will. I know that Sonus Faber increased the sensitivity from 88db to about 90 (91?)db for the Home series of the GP, but I think you'll be best served with at least 200 wpc. Whether you choose Classe or another brand. I've always found that amplifiers act best when well within the realms of their power limitations. Especially with solid state amps. Amps sound their best when they are operating WAY below their clipping performances. IMHO. My speakers are Vienna Acoustic Beethovens (91db, 4 ohm), I'm driving them with a Threshold T400 (150/8ohms,300/4ohms). This is the 'weakest' amp I've used in years. I only 'make do' because the sonics are so good. The Threshold is the first amp that I've had that's less than 200 wpc in about 12 years. It is making it (power-wise), but I can tell the difference. Bottom line: Get the Classe 200/201 minimum. The 300 series would open a whole new world, but that's a different story.

If you want to decide between a CA200 and a CA201, go with the CA200. I had it confirmed by the sales manager for Classe that the major difference between the two is cosmetic.( that explains why the price for the 201 has not gone up from the 200 !).
The real difference, sonically, start from the CA301 upward all the way to the Omega. And this is why the pricing is also up significantly from the CA301.
I agree with some others here that the 01 series starting from the 301 have more extended highs, in fact they are more dynamic in comparison to the 00 lines.
To support my claims, I have the experience of starting from the CA150, to CA200 to the CAM-350 mono blocks I now have. One important point is when you want to pair any of these amps with a Classe pre-amp, you have to start at least from a CP-50. Anything less than that would be doing injustice to the new 01 series starting from the CA301, IMHO.
Happy hunting !

I second the advice to spring for the old series designed by the talented Mr. Reich, especially the DR-6 and DR-9. These may be just a little dark sounding but they are unfailingly musical even (or should I say, especially) compared to amplifiers of recent provenance.

A little bird tells me there is a set for sale for Sing$4500 at the second-hand dealer at Roxy's along East Coast Road.

Thanks Frisson
That's a helpful tip.

regards