"D" amps, general discussion who's 1 and why?

Muralman1:

I think that applying quantum mechanics to digital reproduction is quite a stretch. Please share the proofs you mention with us.

BTW, the DSD encoding scheme used on SACD does not use a digital filter on playback. That's one of its advantages.

Also note that almost every digital recording made in the last 15 or so years was made with a delta sigma oversampling A/D converter, so your digital sources (CD and SACD) have already seen one round of oversampling and digital filtering before they get to you. Since you're hearing something musical from your DAC, it would seem that oversampling and digital filtering are not per se robbing digital of musicality.

I think that comparisons using "every", "always", and "never" are suspect. The world is more complex than that.

My $.02

Muralman1, you said:

"Ghostrider45, I use the Quantum theory because it fits. My speaker cables are extremely thin ribbons. The music signal in all it's fruition slips through without inhibition. We are talking about the very small."

Cables are many orders of magnitude too large to directly exhibit quantum effects. You need to get into the subatomic realm for that.

I don't doubt that you're getting good results, but I believe many of us are also getting great sound through different paths. We don't need to mis-apply real science or invent pseudoscience to explain our successes (and failures).

It's all about good engineering and open minds.

Enjoy the music!