I think this is almost impossible to achieve, because it is always based on subjective assessments. We don't all weight various attributes the same, so, if I were to make a change that to me seemed to be a 24.8% improvement, someone else would say, no, I clearly hear a 32.3% improvement. For me I am satisfied to place improvements in the following categories. 1) Immediately obvious, even with casual listening. 2) A clear improvement in one or more attributes based on several minutes of critical listening. 3) Relatively minor improvement revealed by careful listening to music that I have used for years to assess system/component performance. 4) I just can't hear any difference, no matter how I try. 5). Deoptimization in one or more attributes.
How to assess and quantify system improvement and changes?
In one of the currently popular threads, a number of members (all of whom I respect) have made significant claims regarding system improvement.
For example: A recent post mentions "a double or triple improvement in my system." A conversation a few days ago with two audio buddies had them quantifying a DAC change as a 10% improvement by one and 30% by another.
This, by virtue of our pursuit, occurs throughout our discussions in the various threads.
Starting this thread to see if we can mine the collective and come up with guidelines and outcomes that are reproducible, relevant and reliable for comparisons and discussions between audiophiles.
Thanks!
For example: A recent post mentions "a double or triple improvement in my system." A conversation a few days ago with two audio buddies had them quantifying a DAC change as a 10% improvement by one and 30% by another.
This, by virtue of our pursuit, occurs throughout our discussions in the various threads.
Starting this thread to see if we can mine the collective and come up with guidelines and outcomes that are reproducible, relevant and reliable for comparisons and discussions between audiophiles.
Thanks!