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In Reply to: Re: This is very difficult for me to admit, but.... posted by Jazz Inmate on January 26, 2004 at 11:16:00:
jazz:We would agree. You've touched on a paradox that audio reviewers have spoken about ad nauseam, to wit, the live performance sounds little like two channel or multichannel. When attending a classical concert one is NOT struck by "precise pin point imaging" or "a sense of air around instruments" or "a greater sense of stage depth" or "a liquid midrange," I could go on and on but you get the point.
Nor does one hear instruments firing at one's self from various directions. What we DO hear is a monaural presentation replete with a bit of hall decay; assuming your listening venue is a good one. Go to a small jazz club and you get the mono version sans ambient decay; just full throttle-in-your-face-music.
Home audio systems can sound quite pleasant; but the notion that they accurately mimic the real thing is preposterous. One well known reviewer went so far as to have a violin virtuoso visit his home one afternoon and perform for about twenty minutes. The impression was a lasting one inasmuch as it drove home the point that his cost-no-object system was unable to render, accurately, the sound of a simple violin. Then there's all this excitement over multichannel, which is nothing but a glorified ambient restoration device. Like single malt scotch, they're best appreciated in small doses. These things have been around in one form or another for, oh, about thirty years. See below:
"This surround-sound decoder is based on the "Hafler" principle, first discovered by David Hafler sometime in the early 1970s. The original idea was to connect a pair of speakers as shown in Figure 1, for use as the rear speakers in the surround setup.
This is ok just as it stands, but problems are created if the main speakers are bi-amped or using bridging, for example, since there is no longer a full-range / full power signal available for the rear speakers. There is also no way to control the level reproduced, since it will always simply be the difference signal between left and right channels.
If the signal is mono, then the signal in both channels will always be more or less identical, and there will be no output from the rear speakers at all.
Figure 1 - The Original "Hafler" Surround-Sound MatrixThis circuit works by allowing the rear speakers to reproduce only the difference signal between the left and right outputs. All stereo encoded material has some difference between left and right channels (if it didn't, it would be mono), and it is this difference signal that is reproduced by the rear speakers.
It is important to ensure that the connection between the rear speaker negative terminals is not earthed, or they will simply be in parallel with the main speakers."
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Follow Ups
- Re: This is very difficult for me to admit, but.... - regmac 13:05:29 01/26/04 (0)
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