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Quick theoretical question here
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<blockquote data-quote="thylantyr" data-source="post: 4010910" data-attributes="member: 560358"><p>Why? //content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif//content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif</p><p></p><p>Hypothetical simplified.</p><p></p><p>The output of you source is here -&gt; Then it usually connects to a low</p><p></p><p>resistance resistor, lets say 50 ohms - 200 ohms.</p><p></p><p>The input of your amplifier may be 10,000 ohms - 50,000 ohms typical.</p><p></p><p>Put a cable in there to interface the source with amplifier</p><p></p><p>Source [50 - 500 ohm output impedance] -&gt; your cable -&gt; Amplifier [10,000 - 50,000 ohms input impedance]</p><p></p><p>Lets assume;</p><p></p><p>Source [50 - 500 ohm output impedance] -&gt; cheap cable is 10 ohms -&gt; Amplifier [10,000 - 50,000 ohms input impedance]</p><p></p><p>vs.</p><p></p><p>Source [50 - 500 ohm output impedance] -&gt; superman cable is 0 ohms &gt; Amplifier [10,000 - 50,000 ohms input impedance]</p><p></p><p>Compare the two scenarios. Follow the signal path.</p><p></p><p>The signal comes out and get 50 ohms - 200 of resistance, then flows thru</p><p></p><p>either zero ohms or 10 ohms of resistance, then enters the amp with 10,000 - 50,000 ohms of resistance.</p><p></p><p>Do you think that cable with zero or 10 ohms makes a difference? //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif</p><p></p><p>When you analyze cables in signal path, you analyze it from a 'low pass' filter</p><p></p><p>effect and since cheap cable already has low resistance, that isn't a variable</p><p></p><p>unless you run thousands of feet or more.</p><p></p><p>Read this, it's basic AC/DC electronic theory. Perhaps the first two classes</p><p></p><p>you take if you if you seek to understand electronics.</p><p></p><p><a href="http://www.rane.com/note126.html" target="_blank">http://www.rane.com/note126.html</a></p></blockquote><p></p>
[QUOTE="thylantyr, post: 4010910, member: 560358"] Why? [IMG]//content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif[/IMG][IMG]//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif[/IMG][IMG]//content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif[/IMG] Hypothetical simplified. The output of you source is here -> Then it usually connects to a low resistance resistor, lets say 50 ohms - 200 ohms. The input of your amplifier may be 10,000 ohms - 50,000 ohms typical. Put a cable in there to interface the source with amplifier Source [50 - 500 ohm output impedance] -> your cable -> Amplifier [10,000 - 50,000 ohms input impedance] Lets assume; Source [50 - 500 ohm output impedance] -> cheap cable is 10 ohms -> Amplifier [10,000 - 50,000 ohms input impedance] vs. Source [50 - 500 ohm output impedance] -> superman cable is 0 ohms > Amplifier [10,000 - 50,000 ohms input impedance] Compare the two scenarios. Follow the signal path. The signal comes out and get 50 ohms - 200 of resistance, then flows thru either zero ohms or 10 ohms of resistance, then enters the amp with 10,000 - 50,000 ohms of resistance. Do you think that cable with zero or 10 ohms makes a difference? [IMG]//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif[/IMG] When you analyze cables in signal path, you analyze it from a 'low pass' filter effect and since cheap cable already has low resistance, that isn't a variable unless you run thousands of feet or more. Read this, it's basic AC/DC electronic theory. Perhaps the first two classes you take if you if you seek to understand electronics. [URL="http://www.rane.com/note126.html"]http://www.rane.com/note126.html[/URL] [/QUOTE]
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