Precision-power PCX 250 Bedienungsanleitung PDF herunterladen (Seite 10)

The following is a basic formula to be used as a guide to determine current draw.

A50% amplifier efficiency rating is used as an average. Your new P C X™ a m p l i f i e r

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 gauge wire.

Total Amplifier RMS output x 2 = Total Input Wattage from car

Total Input Wattage = Current Draw (in Amps)

Supply Voltage

Example: A POWERCLASS™ PCX 280 amplifier has two channels at 80w per

channel RMS rating into 4 Ohms (80 x 2 = 160).

You would use the formula in the following way:

160W x 2 = 320W

320W = 26.6 Amps Total current draw.

12V

If the same amplifier is driven into a 2 Ohm stereo or 4 Ohm mono load, double

it's 4 Ohm RMS rating. All POWERCLASS™ amplifiers will effectively double their

power at this load.

160W x 2 x 2 = 640W

640W = 53.3 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.

NOTE: The ground wire must be the same gauge or larger as the power wire.

Recommended Minimum Gauge

(in amps) Up to 4ft. 4 to 7ft. 7 to 10ft. 10 to 13ft. 13 to 16ft. 16 to 19ft. 19 to 22ft. 22 to 28ft.

25-50 10 10 8 8 6 6 4 4

50-65 8 8 6 4 4 4 4 2

65-85 6 6 4 4 2 2 2 0

85-105 6 6 4 2 2 2 2 0

105-125 4 4 4 2 2 0 0 0

125-150 2 2 2 2 0 0 0 00

150-200 0 0 0 0 00 00 00 000

200-250 00 00 00 000 000 000 000 0000

Total Current Draw Length Of Wire To Be Run

1 2 ... 5 6 7 8 9 10 11 12

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Precision-power PCX 250 Bedienungsanleitung Seite 10