"Pooh Bear" wrote in message

"Bruce J. Richman" wrote:

(3) he has repeatedly claimed in his anti-tube,
anti-vinyl ranting and raving that these products produce audible
noise and distortion, yet he has presented no proof to substantiate
his claims.

Why should he need to ?

To illustrate that a tube produces distortion, all you need to do is
to look at the transfer characteristic. No tube has a truly linear
'curve' .... ahem - hence they are called curves it seems - lol.

I you understand the science of electronics, can draw a load line and
interpret it
- that's all the evidence you need to see that any tube will
introduce distortion.

Self-noise is also inherent in any gain circuit ( whether it be tube
or solid state ) . Again, a knowledge of the science of electronics
helps here.

As for vinyl, I was under the impression that tracking error
distortion was well understood ( again from scientific principles )
and the idea of a noiseless vinyl recording seems to fall at the
first hurdle, given the difficulty of producing a perfect pressing.
Phono pre-amps also have self-noise too.

Right, and this is the essence of the proof I've provided here in the past.

Richman is obviously in denial. I seem to recall that he thinks that
cassette tape is superior to CD, as well.