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<blockquote data-quote="Nick Hickman" data-source="post: 31594" data-attributes="member: 556">Re: Does damping factor have any noticeable effect?Hi Richard,My take is that any discussion of &quot;damping factor&quot; that concentrates on amplifier output impedance is focusing on the flea and ignoring the gorilla on which it&#039;s sitting.&nbsp; (In any amplifier you&#039;re likely to use, the output impedance is insignificant in comparison to the loudspeaker impedance and cable resistance.)Simply try to keep the round-trip cable resistance to no more than about 5% of the loudspeaker&#039;s nominal impedance.&nbsp; If you put that in a formula, you should aim for a cable cross-sectional area of L/(1.5*Z) mm^2 where L is the cable length in metres and Z is the loudspeaker impedance in ohms.&nbsp; So for a 10m cable to an 8ohm loudspeaker, aim for 0.8mm^2.&nbsp; For a 30m cable to a 4ohm loudspeaker, aim for 5mm^2.&nbsp; Thicker does no harm other than consuming money and adding weight.Nick</blockquote>

[QUOTE="Nick Hickman, post: 31594, member: 556"] Re: Does damping factor have any noticeable effect? Hi Richard, My take is that any discussion of "damping factor" that concentrates on amplifier output impedance is focusing on the flea and ignoring the gorilla on which it's sitting. (In any amplifier you're likely to use, the output impedance is insignificant in comparison to the loudspeaker impedance and cable resistance.) Simply try to keep the round-trip cable resistance to no more than about 5% of the loudspeaker's nominal impedance. If you put that in a formula, you should aim for a cable cross-sectional area of L/(1.5*Z) mm^2 where L is the cable length in metres and Z is the loudspeaker impedance in ohms. So for a 10m cable to an 8ohm loudspeaker, aim for 0.8mm^2. For a 30m cable to a 4ohm loudspeaker, aim for 5mm^2. Thicker does no harm other than consuming money and adding weight. Nick [/QUOTE]

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