Originally Posted by exm
m. zillch... So once again you are saying that ANY receiver using a digital path (BR->Receiver) will sound the sound same?
"Any" receiver? No, I never said "Any". Did you miss my list of requirements of having low noise, low distortion, flat frequency response, good channel separation, no clipping...
Where is that coming from? Oh wait, I think I get it now, you think analog signal cables sound different, but digital ones are all the same, so you are stipulating that the incoming signal be the "invariably the same quality every time" one, right? At least that's all that I can figure you mean, but feel free to correct my assumption.
I assume all my testing/experiences was just 'placebo' effect when I switched between pieces of audio equipment, correct?
There's probably a dozen, or so, of other
possibilities before I would need to even invoke the "possibility" of what might have been, more properly termed, "expectation bias".
Off the top of my head, as to why the amps in your various receivers and separates sounded different to you, consider:
You heard differences in their pre/pro sections, not the amp section.
You heard differences due to the use of different room mics.
You heard differences because one of your units was faulty (broken).
You heard differences due to different mic locations [placing a mic as little as 9mm, or so, differently than from a previous time can cause a 180 degree
phase cancellation at certain audible frequencies]
You heard differences because the person who cleaned your room moved one of your speakers, 9mm, but never told you.
You heard differences due to alternate makes of room correction circuitry or years of production.
You heard differences in the subsequently applied RC EQ, delay, etc
You heard differences because now that your speakers have finally been broken in, they now
You heard differences due to subtle room changes you don't even realize make a difference (like if the adjacent room's windows/door are open or not.)
You heard differences in the same test track you always use, due to repeated exposure, so you picked up on new things in that same cut [because you are careful not to foolishly use different
material between evaluations so as to be sure the differences heard aren't related to the source changing, right?]
You heard differences because you weren't careful to level match the different systems, yet it is a known fact that louder seems better
, and subtle differences in level, on the order of a dB or so, are invariably attributed to a difference of "quality", not "quantity. SEE "Loudest Seems Best" section of this PDF by Tom Nousaine. :
http://www.nousaine.com/pdfs/Smoke%20and%20Mirrors.pdfEdited by m. zillch - 7/23/12 at 6:10pm