calculating AWG for bi-wire speaker wire - AVS Forum
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post #1 of 2 Old 04-03-2007, 07:12 PM - Thread Starter
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Is there a chart or formula that calculates AWG when you combine speaker wire for single bi-amp runs? For example:

10 awg + 10 awg = ____ awg

... and how do you calculate when you use two different sizes?

12 awg + 14 awg = ____ awg

thanks...
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post #2 of 2 Old 04-04-2007, 05:25 AM
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Quote:
Originally Posted by Alpha_231T View Post

Is there a chart or formula that calculates AWG when you combine speaker wire for single bi-amp runs? For example:

10 awg + 10 awg = ____ awg

... and how do you calculate when you use two different sizes?

12 awg + 14 awg = ____ awg

thanks...

Maybe there is a calculator or simpler way, but I look at the circular mils (or mm^2) for the gauge of each cable, add them together, then match the sum of the individual cables back to the closest number for the larger AWG.

For example, 12 AWG = 3.31 mm^2, and 14 AWG = 2.08 mm^2.

So, 3.31 + 2.08 = 5.39 mm^2

Closest match = 10 AWG = 5.26 mm^2, so 12 AWG + 14 AWG is slightly larger than a 10 AWG wire.

The mm^2 comes from a wire gauge table such as this one.

Just because there is a knob doesn't mean you should turn it.
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