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Audio and Video Talk
General Discussion
Changed bass response swapping from 'audio' to 'coax' interconnect
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<blockquote data-quote="ludo" data-source="post: 87651" data-attributes="member: 691"><p>It is possible, if you measure the freq response of the system with the bad cable, and then with the good cable, that you will not find any difference. (I'm assuming you did not get lost in the "bass management" menus or some such, just swapped SPDIF cables.)</p><p></p><p>So what do you hear then?</p><p></p><p>From my limited live sound experience I learned one thing: crappy mids "hide" everything including the bass. If you were to measure, the low freq would be there for all to see, but if the midrange is ghastly, you would not guess the bass was there by just listening. Distortions in the midrange are the ones that bug our ears most. Any trouble in the mids, and it takes centre stage.</p><p></p><p>A bad cable may not be bad enough to cause drop-outs or corruption of the data, but it may very well introduce loads of jitter on the clock recovered from that same data line, due to reflections in the mismatched cable. If the clock's a bit dodgy, so is the tune. You'll hear it best in the midrange. You might even not notice much else.</p><p></p><p>Yup, it's only fair to warn you that some of us took quite a knock when we started out on the wondrous distortion-free digital path. There was this little Marantz CD273 here in the 80's and I have not recovered well from that glassy tone. I've spent years trying to figure out WTF is so terribly wrong with this stuff, on a number of machines, with not too much success. Now I think SPDIF is an evil which must be uprooted by force.</p><p></p><p></p><p>A bit off topic, but as you fight the monster of making the crossovers for those speakers, think mids, mids, mids... Everything else is garnishing.</p><p></p><p></p><p>Learned gentlemen, where does the "backscatter" idea come from? Isn't that one reserved for optics & radar stuff?</p></blockquote><p></p>
[QUOTE="ludo, post: 87651, member: 691"] It is possible, if you measure the freq response of the system with the bad cable, and then with the good cable, that you will not find any difference. (I'm assuming you did not get lost in the "bass management" menus or some such, just swapped SPDIF cables.) So what do you hear then? From my limited live sound experience I learned one thing: crappy mids "hide" everything including the bass. If you were to measure, the low freq would be there for all to see, but if the midrange is ghastly, you would not guess the bass was there by just listening. Distortions in the midrange are the ones that bug our ears most. Any trouble in the mids, and it takes centre stage. A bad cable may not be bad enough to cause drop-outs or corruption of the data, but it may very well introduce loads of jitter on the clock recovered from that same data line, due to reflections in the mismatched cable. If the clock's a bit dodgy, so is the tune. You'll hear it best in the midrange. You might even not notice much else. Yup, it's only fair to warn you that some of us took quite a knock when we started out on the wondrous distortion-free digital path. There was this little Marantz CD273 here in the 80's and I have not recovered well from that glassy tone. I've spent years trying to figure out WTF is so terribly wrong with this stuff, on a number of machines, with not too much success. Now I think SPDIF is an evil which must be uprooted by force. A bit off topic, but as you fight the monster of making the crossovers for those speakers, think mids, mids, mids... Everything else is garnishing. Learned gentlemen, where does the "backscatter" idea come from? Isn't that one reserved for optics & radar stuff? [/QUOTE]
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Audio and Video Talk
General Discussion
Changed bass response swapping from 'audio' to 'coax' interconnect
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