How to test new speaker cables? Help appreciated. - AVS Forum
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post #1 of 6 Old 03-21-2001, 05:40 PM - Thread Starter
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Hi everyone,

I am planning on replacing my current 18AWG cables with 10AWG. I have now the new cables for testing and would like to know what is the best approach. I know that it is not recommended to switch the cables when the receiver is playing music due to the risk of short-circuiting the amp section. However, is it safe if I mute the receiver first? The alternative is to turn the receiver on and off repeatedly, while I try to discern any audible differences in the old and new cables. However, this approach worries me too as I have heard of thermal cycling being a bad thing.

Any input would appreciated.

- Bjorg

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post #2 of 6 Old 03-21-2001, 06:08 PM
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Bjorg;
Switch to banana plugs for the "testing phase." As the banana would be there on BOTH cables, the differance would / should be just the cables.

OR

If your system has A/B speaker outs, run the NEW cable to the speaker from the B side and use that as your A/B test (no pun intendid.)

The additional (unsused) wire should make no or very little differance.

You could do either of these with audio out, as long as volume is not to loud.


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[This message has been edited by GerryC (edited 03-21-2001).]

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post #3 of 6 Old 03-22-2001, 07:18 PM
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1) Buy a $10 Rat-shack ohmeter.

2)If they have continuity then they are good.

3) Q.E.D.
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post #4 of 6 Old 03-23-2001, 05:44 PM
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markm,
In this case, it is not that simple. Bjorg is NOT talking about replacing the speaker wire with "special conductor, high insulation, super shielded wiz-bang $300/ft speaker cable." He is talking about a Guage change that will reduce the resistance in his speaker run, thus reducing signal loss.

Rat shack DVM's are OK, but not that good.


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post #5 of 6 Old 03-24-2001, 09:40 PM
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Testing speaker cables:

In this case, leave the old wires connected. Connect the new wires to the output of the amplifier right on top of the old wires. On the other end of the new wires, put banana plugs. To listen to the new wires, just plug in the banana plugs. I advise doing it on one side only, to simplify the switch.

This scheme will work because there are 8 wire gauges difference between the two. This amounts to 7 times less resistance. Almost all the current will flow through the new wires.

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post #6 of 6 Old 03-27-2001, 02:14 AM - Thread Starter
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Thanks for all your suggestion and enlightments. I'll have to give Norm's approach a try since I don't have an A/B switch.

- Bjorg

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