When we are talking 'best', IMO power doubling has nothing to do with it; none of the 'best' amps I have heard have that capability.
I feel that the specs have no meaning if the resulting amp is unlistenable. IOW our ears are more important than the amp is- our ears are the most important aspect of audio. Its important to drop all the preconceived notions about specs, including the ability to double power, if you your goal is for the system to sound like real music. see
http://www.atma-sphere.com/papers/paradigm_paper2.html
for more information
I feel that the specs have no meaning if the resulting amp is unlistenable. IOW our ears are more important than the amp is- our ears are the most important aspect of audio. Its important to drop all the preconceived notions about specs, including the ability to double power, if you your goal is for the system to sound like real music. see
http://www.atma-sphere.com/papers/paradigm_paper2.html
for more information