Quote Originally Posted by WmAx
Your statements seem to me, to convey that you do not attempt to isolate the actual variables causing the different 'sound'.

(1) It is true that more then measurable parmeters are involvded. It seems like you have ignored possible psychological influences.
like what influences?

Quote Originally Posted by WmAx
(2) It is true that many SET amplifiers will sound different from amplifiers that meaure well, even in controlled comparisons. It is not unusual for SET amplifiers to have measurable differences that are within known JNDs of human subjects. SET amplifiers typically have a high output impedance resulting in signficnat frequency response variations at impedance swings on a load, such as around the resonant spikes of the bass alignment and at the impedance swings at crossover points. Additinally, most SET amplifiers have levels of harmonic distortion(though, even order primarily) that can detectably effect the sound of the music. In this regard, it could be said that a solid state design that measures good could be considered to be missing something that a SET does not: audible harmonic distortion components.

-Chris
can't speakers with flat and very high impedance curves (in room) handle those resonant spikes you mentioned?

audible even order harmonic distortion components sure reads like a negative technical term to most people because of the word distortion. i guess some ears including mine, prefer to hear music with such distortion