banzai Wrote: > No, the audible differences have more to do with detail and spatial > precision. It might also cause a slight volume gain (emphasis on > "slight"), but I'm not sure on that one (it's hard to distinguish > slight changes in volume from perceived increased detail). I have an > SPL meter but I haven't tried to measure a difference (I'd guess it > might be 0.5dB, if anything). > > I'm a picky audiophile and do lots of testing on my gear, but at a > certain point if your ears say "better", it's time to move on!
Fair enough... although now I can't help wondering if the volume difference could account for this, as small differences in volume can make a big difference in perceived quality. > > Thanks, I'll check it out. I've kind of accepted a bit of willing > ignorance though when it comes to EE. When it comes to physics I always > rocked the Mechanics but struggled with E&M. I'm a professional > programmer but in general I only care about where the bits go, not how > they got there! > Well, I'm actually (about to become) a professor of physics, and I'm probably teaching E&M next semester, so I'd better know it! > > It's too cumbersome to do A/B tests with swapping out ALL power cords > at once (i.e. compare w/all six upgraded cords and then w/out). > Remember, each power cord upgrade added an incremental improvement to > my system (SACD player, DAC/analog passthrough, amp - along w/line > conditioners). But it's possible that the total difference would be > about as drastic as the 703 vs 702 audition. > Very interesting... you're starting to convince me I should try this! > One theory I heard had to do with the current induced by the large > woofers not settling instantaneously. A woofer has too much momentum to > just stop on a dime. So the undesired, unintended movement induces a > current that gets fed back into the signal path. > > The thought was that biwiring keeps that inducted current out of the > signal path of the high freq signal path. Of course you're right that > they're still electrically connected at the amp. I can't explain why > that would help to reduce the effects of this inducted current. > Hmm... me either. If anything, depending on how the cables are arranged it seems bi-wiring could actually increase the inductance... > It's possible that biwiring doesn't do anything, but it's the metal > bridge plates that confound the sound (when single-wired you need the > bridge plates to electrically link the two sets of binding posts). OK, could be - if they're not making a good connection. Pretty sloppy on the part of the speaker manufacturer if so, though. > > Also we don't actually know all there is to know about E&M. I remember > reading about a pitted superconductor material that defied all E&M > expectations. No one could account for its near-superconductive > properties at room temperatures. And I think there was some mystery as > to why some thin ribbon wires (flat, wide wires) outperform other > superconductors. There's also no explanation behind the perceived > performance differences in cryogenically treated cables (people claim > there's an audible diff, I have no experience either way). > Well.... I won't say we know everything about it, far from it, but we're not talking about anything anywhere near as exotic as a high T_c superconductor. The sort of stuff relevant here has been pretty well understood for a long time. Still, human perception is sensitive to some very subtle cues, so it's hard to rule anything out for sure. -- opaqueice ------------------------------------------------------------------------ opaqueice's Profile: http://forums.slimdevices.com/member.php?userid=4234 View this thread: http://forums.slimdevices.com/showthread.php?t=22000 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
