yes it is another myth that human hearing is more sensitive than measuring.
measuring is probably 1000 of times more sensetive or more. The problem is correlation between measurments and experience, how do that difference sound ? why did it sound like this when I did that ? The only thing that is sure is that if no "difference" of any kind is detected, there is none to be heard either The signal is electrical and acoustical when it leaves the speaker so any *real* change must be in the signal then it can ofcourse be measured. Other things are more "can of worms" you can actually measure differences between any cable with rather simple equipment. But is that difference significant enough to be heard ? or what kind mechanism are we after ? Then there is always these ambiguous data on what we humans can hear ? 0.5dB ? 0.1dB ? 0.5% THD0.1% THD ? etc For example some speaker wires combined with speakers with really wierd impedance can give significant frequency response drops that are so large that almost anyone can agree that they are in the realm of the possible to hear. But the solution can be a 5$ wire instead of an 3$ one, not an 5000$ silver cable, this can make this a "can of worms" :)For speaker cable the answer is low impedance with focus on low inductance and resistance C is not so important there. On the other hand the measurable diffs between "decent" signal cables are so small that one can be in doubt about what can be heard for real ? On the other hand there is so many "special" design in the audiophile realm re amps etc that effects that "should not be there" are present, things like a normal EE just assumes is designed away since the 50's ? For example I seen measurments on Holfi CD players where they produce massive distorsion if not conected to thier own preamps with rather odd input impedance 800 Ohm the output circiut does not work well with the typical 10k or 47k input? This is not normal :) . So much of this "special" equipment is "designed" (with cargo cult engineering) to make a difference but this is totally random , where does thst leaves us ? On the other hand nobody measure power amps when driving actual speakers, I've seen one such thing done by a magazine in the 90's . These 0.01% thd that you see in all spec sheets becomes something entirely else :) Hint the good amps are still at spec . This is ofcourse what the brands don't want you to see so of-course all thoose spec sheets look the same it's marketing nobody shows crappy measurment's -- Mnyb -------------------------------------------------------------------- Main hifi: Touch + CIA PS +MeridianG68J MeridianHD621 MeridianG98DH 2 x MeridianDSP5200 MeridianDSP5200HC 2 xMeridianDSP3100 +Rel Stadium 3 sub. Bedroom/Office: Boom Kitchen: SB3 + powered Fostex PM0.4 Misc use: Radio (with battery) iPad 64gB wifi +3g with iPengHD & SqueezePad ------------------------------------------------------------------------ Mnyb's Profile: http://forums.slimdevices.com/member.php?userid=4143 View this thread: http://forums.slimdevices.com/showthread.php?t=85681 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
