"Ian Iveson" wrote in message
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"kyser" wrote in message
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I'm embroiled in a discussion on aus.hifi with a poster who
recommends the use of RG58C/U as speaker cable (with alleged sonic
improvements over standard figure-8 type flex).

Wouldn't the combined inductance/capacitance of this stuff
constitute an LC filter causing signal attenuation or, worse, amp output
stage instability over anything but a short run?

All twin cables have capacitance, inductance and resistance. These values
are quoted for cables that must conform to a standard such as the one you
cite. You can therefore calculate the effect, taking into account the
length of cable, and other impedance in the speaker circuit. In this case,
unless you have some new kind of tweeter, and VHF hearing, I shouldn't
bother.

I have NO intention of using th stuff. IMO, it's a daft idea.

How such a discussion got you embroiled god only knows.

The usual argument about exotic speaker cables vs good quality figure-8
(with my backing the latter). THEN I discovered he was using coax.

I think you will find that resistance is the most important feature of a
speaker cable. For most valve amps, virtually anything will do nicely,
since the output impedance is likely to be much greater than any reasonable
speaker cable.

A point I made very early in the discussion ........

My advice is quit the embroilment, it's not worth spending time on.

And spoil the fun deflating his arguments?