My amp has no faults

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.

Oh, well if you are looking for amps for an active system that does change things. No pesky amp-crossover interactions to worry about. Fun stuff.

I will be using the Acoustats to start with but I for one like merry-go-rounds.

Csontos, you might want to read this:

http://www.atma-sphere.com/Resources/Paradigms_in_Amplifier_Design.php

On ESLs, OTLs are often described as 'the best'.

Tubes in general usually work better on horns and high efficiency speakers than transistors.

Some speakers are such low efficiency and/or impedance that you need an amp with a lot of power and is comfortable with low impedances. In such a case transistors will likely serve better (despite the misgivings I have about transistors).

If you read the article at that link then you know more than most about the matching issues involved.