Chart to Determine the Proper Speaker Cable Gauge

Last Update: 06/01/2012

Chart to Determine the Proper Speaker Cable Gauge:

Wire Size

2 Ohms

4 Ohms

8 Ohms

22 Gauge

3 Feet

6 Feet

12 Feet

20 Gauge

5 Feet

10 Feet

20 Feet

18 Gauge

8 Feet

16 Feet

32 Feet

16 Gauge

12 Feet

24 Feet

48 Feet

14 Gauge

20 Feet

40 Feet

80 Feet*

12 Gauge

30 Feet

60 Feet*

120 Feet*

10 Gauge

50 Feet

100 Feet*

200 Feet*

*Cable lengths more than 50 feet should be avoided even if the cable size is adequate, as the ability of wire to transfer high frequency sound is diminished regardless of the cable gauge. Best performance is achieved by moving the amplifier(s) closer to the speakers in order to reduce the speaker cable length.

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