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Speaker Cable Different for 8ohm vs 4ohm

What is the impact on speaker cable when using a 4 ohm speaker such as a Magnepan 3.6 vs a typical 8 ohm speaker. I have read that when using 4 ohm speakers that it is a good idea to keep speaker wire runs as short as possible. Of course, wouldn't it make sense to keep speaker wire runs as short as possible in any case?
stickman451

Showing 1 response by nick_sr

nick_sr
263 posts
 
Al, your voltage divider example does clear things up I think.

Let me just clarify one point, is the goal for Vin and Vout to be equal (ie in perfect world where the speaker cable would have no resistance or inductance) such that the voltage output by the amp (Vin) would be the same at driver (Vout)?

Thus in the real world as Z1 increases then for a given Vin the Z2/(Z1+Z2) ratio decreases and reduces the value of Vout.

Thanks
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