8 pages

Alternator Output Needed by Car Audio System Power

Pick your total system power. Each page adds the audio draw to the vehicle accessory load, applies charging headroom, and explains why output at idle is the only figure worth comparing.

• 500 watt system A 500 watt car audio system draws about 43.4 amps. With a typical accessory load and charging headroom the alternator needs about
• 750 watt system A 750 watt car audio system draws about 65.1 amps. With a typical accessory load and charging headroom the alternator needs about
• 1,000 watt system A 1,000 watt car audio system draws about 86.8 amps. With a typical accessory load and charging headroom the alternator needs abou
• 1,500 watt system A 1,500 watt car audio system draws about 130.2 amps. With a typical accessory load and charging headroom the alternator needs abo
• 2,000 watt system A 2,000 watt car audio system draws about 173.6 amps. With a typical accessory load and charging headroom the alternator needs abo
• 2,500 watt system A 2,500 watt car audio system draws about 217 amps. With a typical accessory load and charging headroom the alternator needs about
• 3,000 watt system A 3,000 watt car audio system draws about 260.4 amps. With a typical accessory load and charging headroom the alternator needs abo
• 4,000 watt system A 4,000 watt car audio system draws about 347.2 amps. With a typical accessory load and charging headroom the alternator needs abo