Originally Posted by mike1127
I am not aware of any general meaning of the word "accuracy" in science. Not like the word "theory." There may be specific sub-fields that define "accuracy", but no general accepted definition. If you think there is, define "accuracy" for me.
In the context of audio reproduction accuracy refers to the degree to which the output signal resembles the input signal.
You appear to be defining accuracy as fidelity to the signal before it was recorded. That could be defined as a type of accuracy if you added an appropriate qualifier. I can't think of one off the top of my head. What you are asking for is impossible in one sense and possible in another.
Information is lost in the process of recording. It can't be retrieved. It is forever lost. You seem to be saying (correct me if I'm wrong) that you enjoy particular kinds of distortion which make the signal seem more 'live' to you. To a first approximation such a thing is impossible. (It's actually just really really improbable.) You may like a particular type of distortion and think it makes the signal better, to your ears at least, but it does not make it more accurate. It makes it less accurate. There's nothing wrong with liking it. Just don't confuse euphonics with accuracy.
The happenstance which causes a particular type of distortion in a particular piece of equipment has the probability of adding the same information which was was lost during recording and mastering of a piece of music is in the same ballpark as all the atoms in the arm of a marble statue happening to move in just the right way as to physically wave at you. In theory, a very sophisticated DSP which took into account the physical locations of individual instruments and the peculiarities of a studio's acoustics and the microphones with which a performance was recorded could reproduce the lost information to a degree which would render the differences inaudible to a human. In reality it would appear that the post production which most music undergoes renders this impossible. No DAC, amp, cable, output transducer, nor any other kind of tweak is capable of such a feat.