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![]() "Robert Morein" wrote in message ... Although cable capacitance is not an issue with low-Z mikes, Pro-Co Sound claims that series inductance is an issue. Quoting from http://www.procosound.com/downloads/mic_guide.pdf "While parallel capacitance, the enemy of highfrequency response in high-impedance instrument cable, is largely insignificant in low-impedance applications, series inductance (expressed in microHenries, or uH) is not. The inductance of a round conductor is largely independent of its diameter or gauge, and is not directly proportional to its length, either. Parallel inductors behave like parallel resistors: paralleling two inductors of equal value doesn't double the inductance, it halves it. In cable construction, using two 25 AWG conductors connected in parallel to replace each of the conductors of a 22 AWG twisted pair will result in the same DC resistance, but approximately half the series inductance. This will result in improved high-frequency performance: better clarity without the need for equalization to boost the high end." I cannot dismiss this, By now, you should. I think that several have already pointed out that moderately long mic cables (100s of feet) just aren't a problem, and that in use, mic cables tend to perform about the same. The most obvious performance characteristic of mic cables is simple integrity. Mic cable is fairly well standardized, as are the connectors. The major controlling factor is quality of assembly and soldering. |
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