Jeff Rowland 2 or Classe 25 for Avalon Eclipse

In my opinion you are not comparing apples to apples. The Rowland Model 2 out classes the Classe and it should be plenty of power for the 2 way Avalons.

This would be my choice for driving those Eclipes. I've heard this combination and its very nice. M200s pop up every couple of months. The last thing you want is to under power them and blow an irreplaceable tweeter.

http://app.audiogon.com/listings/tube-mfa-m200-power-amps-tube-monoblock-excellent-working-condition-2013-01-10-amplifiers-92683-westminster-ca

It seems I should go ahead with JRDG model 2, but still want to hear another suggestions

What are you using for a preamp?

Good point Vicdamone - it was pre-emptive on my part but the fact that the tweeter can not be replaced was the main reason I sold my Eclipse. Otherwise, a great speaker and still one of Avalon's best