The closest approach: what amplification?


Ken Kessler titled his book on Quad "The closest approach" to summarize Quad's philosophy of producing a speaker that gets as close as possible to the reproduction of a live event. I have been wondering if there is a type of amplification that gets us closer to the real thing more than other types. I have met many audiophiles over the past few years, and what strikes me is how religious people can get about radically different types of amplification: some swear that there is nothing like small-power SET coupled with efficient speakers. Others believe that you don't have a serious system unless you use muscular SS amplifiers (e.g. 300 WPC). Others believe that powerful push-pull tube configurations are the best of both worlds. Finally, there is a small community of OTL aficionados that look at the rest of the world as if they don't know what music reproduction is all about.

Of course these people value different things. Some like imaging more than other things; others value transparency; others are crazy about huge soundstages; others seek warmth etc. And it is clear that some types of amplification are better for certain things and others are better for other things.

Now, let us consider simply the reproduction of a live event (not some specific, partial dimensions). In your experience, what type of amplification got you close to the real thing? Powerful SS, SET, OTL, powerful push-pull?
ggavetti
I can't speak to OTLs but in my experience, high power push-pull has the greatest potential for communicating the enthusiasm of a live event. There are many attributes coveted by audiophiles that have little bases in live music - precise imaging being one of the most obvious. On the other hand, live music presents tremendous dynamic contrasts compared with audio. Low powered amps like SETs tend not to fare too well in this department. And while powerful solid state designs are dynamic champs, there are just too many other areas in which they fall short.
It depends what sort of live event you are trying to reproduce.

I think it is possible to convincingly reproduce small scale acoustic music which has been well recorded.In this regard I find SETs or OTL are most rewarding.

Forget orchestral music or rock concerts however.At best you get a scale model of the real thing.
For orchestral music Bose 901s are probably the most convincing, seemingly regardless of amplification.Nothing else I have heard gives a realistic sense of soundstage width and venue acoustic.I hate to say it but Bose is right about this.Some sonic deception is required.
For me, it's zero-feedback, fully-balanced solid state matched with time
and phase aligned speakers. YMMV.