"...It should be pretty obvious when using this speaker it is totally irrelevant if amplifier power doubles. All this stuff becomes irrelevant..."
Unless you like speakers like big Magnepans and others.
"...Try and find the Martin Logan owner who says wow I can use any amp and my speakers sound great! No such thing..."
I'm one. The M-L Electromotion ESL is 91db efficient and I drive them very well with my 25wpc tube amp. Every rule has an exception...I do agree on your efficient speaker premise, it makes life easier for sure.
Unless you like speakers like big Magnepans and others.
"...Try and find the Martin Logan owner who says wow I can use any amp and my speakers sound great! No such thing..."
I'm one. The M-L Electromotion ESL is 91db efficient and I drive them very well with my 25wpc tube amp. Every rule has an exception...I do agree on your efficient speaker premise, it makes life easier for sure.