250 Pro

[Greg]

Not very helpful.

Well, why did you decide on a D200 rather than a D120? 50% more expensive and not a great deal more power.

I would suggest that D250 owners chose that model because:
1. they wanted the extra 30 watts
2. they understood the casework provides better thermal dissipation, and so better current delivery at high loads for a longer time period
3. they liked the option of going dual mono to D800.
4. they listened to the D250 as well as other amps, and decided, based on listening, that the D250 was the better choice given their own judgemen, budget and upgrade options.

There were other differences that made the D200 decision easier. It has additional features AND I was able to get a decent discount. Also 80 watts is significantly more that the 30 watt differential between the 220 and 250. 

My request is simply what are the perceived differences heard by members of this forum and I thank you for your responses (in particular your second). I have been a member of this forum for a long time and have read much more detailed responses to similar questions than the one @NickB gave. In the spirit of this forum I won't mention his post again. I don't want this to become a matter of contention.

I recently did a home comparison between my 220 Pro C/I and a 250 Pro C/I. As it happens, the 250 is owned by @NickB. My listening room is small (just over 4m sq) and I was not expecting to hear a lot of difference between the two models. On swapping the 220 for the 250, the improvement in sound quality was instantly obvious. Not even 3-4 minutes was needed   The outcome of that little experiment was that I sold the 220 and now happily own a 250