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<blockquote data-quote="John Roberts" data-source="post: 89506" data-attributes="member: 126">Re: Maximum analog snake lengthTo amplify Ivan&#039;s rant I draw a distinction between phenomenon that can actually make an audible difference in the margin, and phenomenon that while perhaps real do not ever make an audible difference. This discussion of snake length correctly zero&#039;d in on the real, lumped capacitance forming an RxC with products source impedance, issue and not the esoteric&nbsp; transmission line characteristic impedance and termination effects. It is the nature of internet forum discussions that people often post everything that they know on some subject, instead of just the pertinent information useful to the OP. This can get confusing when the real answer gets lost in the noise. Ivan is correct that even these real effects must be kept in perspective. How many signals in that snake need a &gt;20kHz passband? That said, a 5kHz LPF could very easily be audible, so some worst case consumer VCR fed through the snake with high capacitance wiring &quot;could&quot; make an audible difference. I thought this thread was mostly reasonable and constructive, but know what Ivan is ranting about. I&#039;m afraid it is the nature of the WWW and lurkers need to be selective about what they take from most threads. JRPS: Note the receiving end&#039;s input impedance is in parallel with the source impedance for RxC HF pole calculation, so results will be slightly better than using source impedance alone.</blockquote>

[QUOTE="John Roberts, post: 89506, member: 126"] Re: Maximum analog snake length To amplify Ivan's rant I draw a distinction between phenomenon that can actually make an audible difference in the margin, and phenomenon that while perhaps real do not ever make an audible difference. This discussion of snake length correctly zero'd in on the real, lumped capacitance forming an RxC with products source impedance, issue and not the esoteric transmission line characteristic impedance and termination effects. It is the nature of internet forum discussions that people often post everything that they know on some subject, instead of just the pertinent information useful to the OP. This can get confusing when the real answer gets lost in the noise. Ivan is correct that even these real effects must be kept in perspective. How many signals in that snake need a >20kHz passband? That said, a 5kHz LPF could very easily be audible, so some worst case consumer VCR fed through the snake with high capacitance wiring "could" make an audible difference. I thought this thread was mostly reasonable and constructive, but know what Ivan is ranting about. I'm afraid it is the nature of the WWW and lurkers need to be selective about what they take from most threads. JR PS: Note the receiving end's input impedance is in parallel with the source impedance for RxC HF pole calculation, so results will be slightly better than using source impedance alone. [/QUOTE]

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