Loudspeaker cable length

November 11, 2021
 by Paul McGowan

4 comments on “Loudspeaker cable length”

    1. Normally the input resistance of an poweramp is at 50-100 Kohm and the lower the output resistance of an preamp the longer the cable can be. For example the Jubilee-Pre of Octave in Germany has 30 ohm outp. resist. and so they allow any! cable length, whether it is RCA or XLR. And so 10m and more are no problem. At least all this is a rule of thumb.

  1. It actually depends on the design of the speaker cables. I use 4m speaker cables and 0m interconnects (I don’t have any at all). The speaker cable manufacturer says the design makes it perfectly acceptable to use unequal lengths. Their design makes their length largely irrelevant. If you have all your audio equipment against a side wall, short cables are impossible. I would invite Paul to tell my wife there are going to be a couple of big amplifiers in the middle of her reading room. I’ll pop out for a coffee.

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