My amp has no faults

I will stand by my statement that it is absurd without the mention of speaker for context. See Atmasphere's atatement above. I have had a few amps that, when paired with particular appropriate speakers I felt exhibited no major faults. When I paired each of those amps with another speaker, with different characteristics (due to crossovers or drivers, or other aspects of their construction), these amps were less ideal compared to other contenders.

To this day, I will recommend the Butler 2250 for someone who has a somewhat inefficient speaker that needs current (SP Tech Minis, in my case). The Rogue Stereo 90 for a somewhat more efficient speaker (Von Schweikert VR-4 Gen IIs). The Butler did not sound as good as the Rogue on the VR-4s, but was preferable on the SP Techs.

In the lower wattage realm, for single driver designs, I will always rave about the First Watt F2J, but this is a very specialized amp. And if the speaker's impedance is appropriate for it, I am a huge fan of the Atma-Sphere S-30.

The above are the top four amps I have heard. But this only applies when paired particular suitable speakers for them.

For the best possible sound, match amp to speakers. I have yet to be convinced that there is a jack-of-all-trades amp that will get you the best possible sound across speakers. And yes, I have heard ncores in my system with both the SP Techs and the VR-4s. An impressive amp, but it beat out neither of the amps mentioned above.

Would high power consumption, low efficiency or generation of a lot of heat be considered a "fault"?

Those are clearly measurable attributes of an amp.

Not all that determines the sound heard is measurable or accounted for by specifications. Even then much that can be measured does not alone determine performance. So the final determination of what constitutes a fault or not is of course highly subjective and debatable.

Okay Roscoeiii, you've answered the question and I trust your opinion. You clearly have the experience to justify your position. But it's your position on preference that I'm interested in. Thank you.

Mapman, measurable specs or efficiency are irrelevant to my question. Your Bel Cantos are highly regarded so I respect your answer.

Csontos,

I am curious what you speakers are.

I have three pairs, Kef 105/2s, Mission V63s, and JBL L5s. Also a pair of Velodyne 12" powered subs. Right now, the L5s are coupled to one of my Acoustat TNT200s through a Meridian 501 pre and Oppo BDP95. I have two other TNT200s and a TNT120 currently being rebuilt. I'm in the process of building a fully active system and hence the need for multiple amps. They will be used with a pair of altered JBL 4345s I'm endeavoring to build. Actually, they are being built by a former customer of mine who is a cabinet maker. The Acoustats are simply stunning. Roy Esposito who was part of the engineering team that designed them rebuilt them for me. But this is a hobby and I love amplifiers. My purpose for starting the thread is simply to compile a list of "the best of the best". I did not intend to cultivate controversy. I suppose the title achieved that but I wanted attention. Not as much as I'd hoped for.