Thank you both for the responses; they were very helpful. One correction I need to make. The Prima Luna integrated is the Prologue Premium issued in 2011, not the Dialogue Series. It received very good reviews, and supposedly, the amp is that John Atkinson at Stereophile unearthed to evaluate the YG Carmel 2 which is $24,000 plus.for this month's issue
Hard to believe that the other amplifiers he used did not sound as good as Prima Luna. However, that does not necessarily prove anything outstanding about the Prima Luna, and surely and embarrassingly more about the compatibility deficiencies of this outrageously expensive speaker. Taking into account the pitfalls of finding the right combinations of electronics, speaker cables, interconnects, DAC, and dealing with the anomalies of room acoustics, should not a manufacturer design a speaker to find compatibility with most audiophile grade electronics
This trial and error approach will always remain a mystery to me about high-end products and systems. I should have added a caveat to this thread about 70 lbs amps or integrated amp. I thought I had threw off that option, when I drop an Aragon 4004 (65lbs unboxed) on my foot about 10 years ago which put me on crutches for a while. Again, thanks for the advice.