Today I bought the Sinus Live amp and its 400rms at 1 ohm load.I have 10awg wire kit at home and i was planning to use it since my amp draw 20amps at 1ohm and the calculator at bcae1.com shows me that its ok but there is 15-20rms difference between 8 and 10 awg wires. so my question is should i stay with the 10awg wire which i have or go and buy 8 gauge ?
its 400rms D class with 40amps fuse.it draws 20 amp.i calculate from the formula that they have at crutchfield.com and also at bcae1.com
To calculate the current draw of an amplifier, multiply the number of channels by the RMS watts per channel (a 2 channel amp rated at 300 watts RMS per channel would be 600 watts). Double it to account for amplifier inefficiency (600 watts X 2 = 1200 watts), then divide by the average output Voltage of an alternator, 13.8 volts (1200 divided by 13.8 = 87 amps). Since the average music signal requires about 1/3rd of the average power in a test tone, divide by 3 (87 amps divided by 3 = 29 amps). The result is the amplifier's approximate average current draw.
they say at least 10awg at the manual but the guys where i bought the amp said that will be better if i run it with 8awg.
so should i buy 8 awg or stay with the 10 that i have, and there is one thing that confuses me..at bcae1.com when i use the calculator it shows me 20rms more with 8awg wire.