Anyone else notice that this is the second power amp/int amp from Audio Research that has had a "hiccup" when tested by JA? When the Ref amp was tested for the last review (that the reviewer bought I may add) there were some poor measurments that Audio Research blamed on a tube. Now this unit has issues requiring some work. Are the units reviewed "new off the line" or are they units that go from reviewer to reviewer? To question Audio Research's ability to make a product of outstanding sonic quality is ridiculous. However as a consumer, however, this raises a serious question of short, and more importantly, long term quality/reliability. Or am I alone in this matter?