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What part of his opinion is great ?

Posted by Interstage Tranny (A) on July 13, 2012 at 10:09:57

In Reply to: Great Post Dennis... posted by drlowmu on July 12, 2012 at 05:39:13:

SET:...more musically revealing...more sensitive to musician's attitudes and emotions...better replicator of musical depth and layering...

PP: CMR Common Mode Rejection in push-pull amp naturally rejects artifacts of music that look like hum noise or distortion...PP processes the music...

Does anyone really think all of this is gospel ? Jeff, my old friend, do you think this is all true fact ? Come on, now, let us decipher some of this; shall we ?

The opinions about more musically revealing, more sensitive to emotion and attitude plus a better replicator of musical depth and layering, sound just like my PP Triode amps using an IT and NFB (no neg fdbk). In fact, my PP amps have more dynamic contrast (thus dynamic range), better depth and layering(much more involving 3D EFX described as holographic), plus they are clearly a better conveyor of the speed and the action of each instrument within any musical selection; compared to many SE amps used on my same systems. Of course, this is opinion. In yours or Dennis's system, your's or Dennis's opinion is what matters.

There is no inherently better topology, nor inherently better tube vs. solid state. System synergy can create fantastic sound in anyone's home. Despite this being the SET forum, there is no SEPentode, triodes, tubes vs. transistors or PP forum. So, this forum is where we often meet and greet.

I have no doubt that your topology and Dennis's topologies have many virtues, sonically. Even spec wise; though we all know many of the specs are inadequate, some of your specs could be admirable. Leaving out any discussion of CMR, a truly theoretical mumbo jumbo description originally intended to describe power supply rejection, how about distortion ? Specs being inadequate, to be sure, it is said the SE amp has higher even order distortion than PP. Okay; and this higher magnitude even order distortion came to be known as euphonic, compared to the lower odd order distortion in PP ? Euphonic; what a pleasant term. What a pleasant effect. Is it any wonder we all strive for euphonious playback ? Even if we prefer other terms, like accurate and detailed, better replicator, more musically revealing, even more flowery words, don't we all strive for musicality and harmonious music reproduced in our homes ? Yes; we all strive for euphonic playback.

Regardless of what type of distortions or the magnitudes of these distortions, none of us usually bring any distortion meters, signal generators or spectrum analyzers when we evaluate systems for the purposes of long-term listenability. We rely on our ears, most of the time; as it should be. Most importantly, any topology, even including ss amps, can create a very musical sound when synergistically chosen within a system approach. There is no reason, for any of us, to drill into anyone else's minds, that their particular approach makes any and all others not as good. Let us all enjoy the music...

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