Ok, i know what the run of the mill measurements are for a DAC, amp, etc and i understand it. But, since we are talking about measurements, i may have a couple of questions.\n\n- My former house had lots of glass paneling in the room i was in. It sounded lousy\/"glassy". I covered them all up with wood panels and it sounded a whole lot better. Measurements at my listening position were identical with the exposed glass vs glass covered with wood paneling. But, the sound changed. If you know any better, would you be able to show me a graph and point me to what measured variable it is that caused this change?\n\n- I have a couple of R2R DACs that don't measure as well (if you look at the regular run of the mill measurements for a DAC) in comparison to some DS DACs i've had. But, this R2R DAC has a unbelievably precise and deep soundstage (oh yes, that illusive thing). Can you point me to a graph and a measured variable that shows why that soundstage is the way it is and why it can feel more precise and deep with usage of a certain DAC in a A\/B test.\n\n- I have some speakers with concentric drivers that sound very holographic. It literally feels like i can reach out and grab somebody (kinda like VR for the ears, as weird as this sounds). What is a measurement, graph, variable etc that can point to this?\n\nThese are legitimate things in my experience i am curious about. Can everything that is perceived by the human ear be measured and represented graphically\/numerically? I think not. But, i stand corrected if it can be.\n\nFirst item to consider\/remember.....you ARE biased!\n\nBias is real, and bias is difficult to defeat! You may claim that you are unbiased, but many experiments have proven that humans have bias that WILL cloud your judgment!\n\nIf you see the gear, then you know what to expect, then you have an expectation bias, then you hear exactly what you expected to hear. This is exactly why your subjective comments cannot be considered reliable to yourself, much less to us.\n\nI understand, this reality is a tough pill to swallow! This is why any subjective testing must be performed with proper Double Blind Testing protocols!\n\nI am an analytical chemist by profession. It is quite common for me to delegate particular lab work to people that are less experienced than me, and have absolutely no idea on what the data "should look like". By doing that, I remove my bias from the analytical work, as I know what to expect and if I find something different than expectation, then I may start questioning the data as a first action, while the data was indeed real and we should have reacted to it vs. coming back to question it.