Vienna Mozart Grand or Beethoven Baby Grand


Anyone compared these two? I am trying my friends old Mozart (the pre-Grand model) and its really good but considering stepping up to the Beethoven Baby Grand. I have a Moon I-3RS amp, goes really well with the Mozarts.

Also the Hifi News Aug 08 review of the Beethoven Baby Grand suggests it could be a demanding amp load as the minimum impedance gets down to 1.5ohms (average is 4ohms). Does anyone know what this means? My amp, the Simaudio moon I-3RS is rated 200W at 2ohm - could the speakers damage the amp when the impedance gets low?
Thanks for your help in advance.
acdvd
Miner, the B&K reference 200.2 S2 apparently has a stated damping factor of 450, which should be quite good for driving the Mozarts without bloat. I honestly have no idea what the problem may have been, except perhaps for equipment not well broken in.
i have heard both the beethoven baby grands and the mozart grands. (i bot the beethovens). they r totally diff speakers sound wise and technically. the mozart is a 2.5 design w/diff crossover. i think the baby grands sound much better. however, the baby grands are very finicky about room placement, and if not set up correctly, u will get bass boom. yes, the impedance can drop pretty low on the beethovens, so b careful. i m not sure about your i-3. i have the i-5 and i really shud upgrade to a more powerful amp.