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Old 01-05-2018, 06:18 PM   #1
littlebadboy
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Default Does speaker wire length matter?

I bought 100 ft of 16-gauge speaker wire and some nice 1/4 male plugs. I'm planning to do some soldering today. I'm thinking of making 2 speaker wires at 50 ft each just in case needed in an outdoor setting. Or... well... if my wife wants this speaker on that side and the other on this side of her "sewing room".

Does speaker length matter?
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Old 01-05-2018, 06:40 PM   #2
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Only if it's REALLY long. Most wire shows it's impedance, (resistance per foot), the larger the wire and depending in what the wire is composed of, will change it's resistance. The more resistance, the more 'volume loss' you'll get.
So total resistance of the wire based on the resistance of the speaker will give you the percentage.
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Old 01-05-2018, 06:49 PM   #3
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Here is a calculator that gives a rough idea,
I picked 100 watts and 100 feet of 16 gauge wire
It shows that the speaker will 'see' 83 watts instead of 100 watts from a super long 100 foot smaller gauge wire.

If you change it to large wire, like 6 gauge, power to the speaker is 98 watts.


http://www.electrovoice.com/cableloss.php?
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Old 01-05-2018, 06:53 PM   #4
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Thanks Ron! I'll try to go shorter.
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Old 01-05-2018, 06:55 PM   #5
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Or use some huge wire!
glad to help! Finally, a technical question that's in my area of knowledge
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Old 01-05-2018, 08:34 PM   #6
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I was going to weigh in on this but Ron covered it quite well? I'm pretty sure you are talking about TWIN LEAD and not COAXIAL cable. Things can change quite a bit if you are using shielded coaxial cable to feed a speaker.
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Old 01-05-2018, 08:50 PM   #7
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Quote:
Originally Posted by PKVeazey View Post
I was going to weigh in on this but Ron covered it quite well? I'm pretty sure you are talking about TWIN LEAD and not COAXIAL cable. Things can change quite a bit if you are using shielded coaxial cable to feed a speaker.
I think they're twin leads... but definitely not coaxial.
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Old 01-05-2018, 09:04 PM   #8
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True, separate leads are superior, and the more they are separated, the less capacitance so the more 'highs' that will make it through. I've seen some twin leads with an exaggerated plastic 'space' between them, but I doubt it really makes that much audible difference.
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