Yuri: Your "I am right and I dare you to prove me wrong" approach leaves little motivation for anyone here to make the effort to help you determine why you are not hearing some differences with these products. Did it ever occur to you that perhaps your system implementation is the cause of you not hearing such changes?
My system is very different than yours and I do indeed hear changes that do not require any silly blind testing. Rather than preach to us that what we are hearing is all in our minds, perhaps a more pro-active approach would be to learn from others on what they have done to achieve the sonic differences.
Have you taken your audio gear to someone else's home and compared it to what they have? Maybe their setup would allow you to hear such immediate differences.
Your pedantic delivery that cables make no difference, DAC's make no difference, Stereophile's report shows that amps make no difference, etc., etc., benefits nobody. Does such a magazine report imply that everyone will have the same results in their home system? We can all determine the outcome of an audition for ourself.
"Just a few days ago i was testing the digital outputs of my Musical Fidelity Tri Vista 21 DAC against the analog outputs of my Yamaha S2500 when playing a CD, ..."
Why are you using the DAC's digital outputs to compare to the analog outputs of a CDP? What are the DAC's digital outputs driving? A more "conventional" test would have been the DAC's analog outputs vs. the Yamaha's analog outputs into the preamp. And what is driving the Tri Vista? The Yamaha as a transport? And through what digital cable interface? Just this interface alone could mask or entirely destroy the opportunity for you to hear the benefits of the Tri Vista.
"I couldn't tell them apart, and i doubt anyone could."
Probably true but more likely due to the system's implementation rather than there not being actual differences between these individual products.
What I find ironic from your Magnepan 2.7 vs. 3.6 thread, you wrote that changing only the inductors in the speaker brought on an improvement. ONLY THE INDUCTORS!!!! And yet you can't hear amp or DAC differences?
What do you listen for.....simply frequency response and tonality changes? What about dynamic contrasts, harmonic overtones, decays, separation of musicians on the stage, etc.? For me, these are the significant changes brought on by the components which you claim sound the same.
I read the report on the power cable test. A quick review of the components that resulted in that system would indicate that such a system poorly conveys many of the attributes I listed above. I own the Talons, and they are wonderful speakers, but they are not strong in the dimensionality areas. And forget about these attributes with the Parasound JC-1s and the Theta DAC/preamp. If you want to test a Ferarri engine, you don't drop it in a Buick Century.
So Yuri, the big question here is, if you can not hear any differences, then why not just go with a Best Buy rack system and be done with it?