Current Draw

The following is a basic formula to be used as a guide to determine current draw. Your new DCX amplifier is more efficient than most other amplifiers. This formula is to be used as a guideline. Using wire of a larger gauge can only improve the current transfer of your system. Do NOT use smaller wire gauge.

Total RMS output X 1.5 = Total Input Wattage

Total Input Wattage = Current Draw (in Amps)

Supply Voltage

Example: A DCX amplifier has two channels at 250 watts per channel RMS rating into 4 ohms (250X2 = 500 watts).

You would use the formula in the following way:

500 W X 1.5 = 750 watts

750W = 62.5 Amps total current draw

12V

If the same amplifier is driven into a 2 ohm stereo or 4 ohm mono load, double its 4 ohm RMS rating. All DCX amplifiers will effectively double their power at this load.

500W X 1.5 X2 = 1500 watts

1500W = 125 Amps total current draw

12V

If you are using more than one amplifier, add up the total current draw for all of them and choose the appropriate gauge based on the grand total.