Speaker Cable Gauge

Cable Gauge Table – Lo-Z installations, 0.5dB attenuation. 4 Ω & 8 Ω loads 

Cable Cross Section (mm²) Cable Gauge (AWG) Max Cable Length (Metres, 4 Ω load) Max Cable Length (Metres, 8 Ω load)
0.75 ≈18 5 10
1.5 ≈16 10 20
2.5 ≈14 17 35
4.0 ≈12 28 55

Cable Gauge Table – 70V Hi-Z installations, 1.0dB attenuation, 20 speakers evenly distributed

Cable Cross Section (mm²) Cable Gauge (AWG) Max Cable Length (Metres), (125 W/Channel) Max Cable Length (Metres), (250 W/Channel)
0.75 ≈18 90 45
1.5 ≈16 180 90
2.0 ≈14 <250 150
3.5 ≈12 <250 <250

Note: Cable lengths should not exceed 250m.

Cable Gauge Table – 100V Hi-Z installations, 1.0dB attenuation, 20 speakers evenly distributed

Cable Cross Section (mm²) Cable Gauge (AWG) Max Cable Length (Metres), (125 W/Channel) Max Cable Length (Metres), (250 W/Channel)
0.75 ≈18 190 90
1.5 ≈16 <250 180
2.0 ≈14 <250 <250
3.5 ≈12 <250 <250

Note: Cable lengths should not exceed 250m.

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