At least 2 examples of the 950 have been measured for S/N ratio while not connected to anything else and of those 2 examples, both had poor results. Even more disturbing was the fairly large variation in measurements. This indicates that not all 950's are the same even when produced contemporaniously. Now anyone familiar with Demming and those who have applied and extended his methods will realize some variation is unavoidable, but I would submit the degree of variation that is being observed and the poor average performance is troubling.

Perhaps the 950 would fare well in the Dynaco forums, I don't know. I do know that audio manufaturers seem to be playing fast and loose with specs lately and when no one notices it will only get worse. I don't expect absolute silence, but when I have a garage full of 20 year old equipment that exhibits better performance (and worse advertised specs) I get concerned about 'progress'.
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Charlie