32 pages

Amplifier Power Wire Gauge by Power and Run Length

Pick your amplifier power and how far the run is. Each page gives the current draw, the voltage drop for every conductor size, the fuse that protects it, and the ground requirement people forget.

• 250W at 10 ft A 250 watt RMS class D amplifier draws about 21.7 amps and needs 6 gauge over a 10 foot run to hold voltage drop under 2 percent,
• 250W at 14 ft A 250 watt RMS class D amplifier draws about 21.7 amps and needs 4 gauge over a 14 foot run to hold voltage drop under 2 percent,
• 250W at 17 ft A 250 watt RMS class D amplifier draws about 21.7 amps and needs 4 gauge over a 17 foot run to hold voltage drop under 2 percent,
• 250W at 20 ft A 250 watt RMS class D amplifier draws about 21.7 amps and needs 4 gauge over a 20 foot run to hold voltage drop under 2 percent,
• 500W at 10 ft A 500 watt RMS class D amplifier draws about 43.4 amps and needs 4 gauge over a 10 foot run to hold voltage drop under 2 percent,
• 500W at 14 ft A 500 watt RMS class D amplifier draws about 43.4 amps and needs 2 gauge over a 14 foot run to hold voltage drop under 2 percent,
• 500W at 17 ft A 500 watt RMS class D amplifier draws about 43.4 amps and needs 2 gauge over a 17 foot run to hold voltage drop under 2 percent,
• 500W at 20 ft A 500 watt RMS class D amplifier draws about 43.4 amps and needs 1 gauge over a 20 foot run to hold voltage drop under 2 percent,
• 750W at 10 ft A 750 watt RMS class D amplifier draws about 65.1 amps and needs 2 gauge over a 10 foot run to hold voltage drop under 2 percent,
• 750W at 14 ft A 750 watt RMS class D amplifier draws about 65.1 amps and needs 1 gauge over a 14 foot run to hold voltage drop under 2 percent,
• 750W at 17 ft A 750 watt RMS class D amplifier draws about 65.1 amps and needs 1/0 gauge over a 17 foot run to hold voltage drop under 2 percent
• 750W at 20 ft A 750 watt RMS class D amplifier draws about 65.1 amps and needs 2/0 gauge over a 20 foot run to hold voltage drop under 2 percent
• 1,000W at 10 ft A 1,000 watt RMS class D amplifier draws about 86.8 amps and needs 1 gauge over a 10 foot run to hold voltage drop under 2 percent
• 1,000W at 14 ft A 1,000 watt RMS class D amplifier draws about 86.8 amps and needs 2/0 gauge over a 14 foot run to hold voltage drop under 2 perce
• 1,000W at 17 ft A 1,000 watt RMS class D amplifier draws about 86.8 amps and needs 2/0 gauge over a 17 foot run to hold voltage drop under 2 perce
• 1,000W at 20 ft A 1,000 watt RMS class D amplifier draws about 86.8 amps and needs 4/0 gauge over a 20 foot run to hold voltage drop under 2 perce
• 1,500W at 10 ft A 1,500 watt RMS class D amplifier draws about 130.2 amps and needs 2/0 gauge over a 10 foot run to hold voltage drop under 2 perc
• 1,500W at 14 ft A 1,500 watt RMS class D amplifier draws about 130.2 amps and needs 4/0 gauge over a 14 foot run to hold voltage drop under 2 perc
• 1,500W at 17 ft A 1,500 watt RMS class D amplifier draws about 130.2 amps and needs 4/0 gauge over a 17 foot run to hold voltage drop under 2 perc
• 1,500W at 20 ft A 1,500 watt RMS class D amplifier draws about 130.2 amps and needs no size in the table over a 20 foot run to hold voltage drop u
• 2,000W at 10 ft A 2,000 watt RMS class D amplifier draws about 173.6 amps and needs 4/0 gauge over a 10 foot run to hold voltage drop under 2 perc
• 2,000W at 14 ft A 2,000 watt RMS class D amplifier draws about 173.6 amps and needs no size in the table over a 14 foot run to hold voltage drop u
• 2,000W at 17 ft A 2,000 watt RMS class D amplifier draws about 173.6 amps and needs no size in the table over a 17 foot run to hold voltage drop u
• 2,000W at 20 ft A 2,000 watt RMS class D amplifier draws about 173.6 amps and needs no size in the table over a 20 foot run to hold voltage drop u
• 2,500W at 10 ft A 2,500 watt RMS class D amplifier draws about 217 amps and needs 4/0 gauge over a 10 foot run to hold voltage drop under 2 percen
• 2,500W at 14 ft A 2,500 watt RMS class D amplifier draws about 217 amps and needs no size in the table over a 14 foot run to hold voltage drop und
• 2,500W at 17 ft A 2,500 watt RMS class D amplifier draws about 217 amps and needs no size in the table over a 17 foot run to hold voltage drop und
• 2,500W at 20 ft A 2,500 watt RMS class D amplifier draws about 217 amps and needs no size in the table over a 20 foot run to hold voltage drop und
• 3,000W at 10 ft A 3,000 watt RMS class D amplifier draws about 260.4 amps and needs no size in the table over a 10 foot run to hold voltage drop u
• 3,000W at 14 ft A 3,000 watt RMS class D amplifier draws about 260.4 amps and needs no size in the table over a 14 foot run to hold voltage drop u
• 3,000W at 17 ft A 3,000 watt RMS class D amplifier draws about 260.4 amps and needs no size in the table over a 17 foot run to hold voltage drop u
• 3,000W at 20 ft A 3,000 watt RMS class D amplifier draws about 260.4 amps and needs no size in the table over a 20 foot run to hold voltage drop u