Quote:
Originally Posted by Gill  I arrived on the figs as follwoing:-
On 4 ohms fig current draw is-152.6
I=(TP*2)/Vbatt== ((416+500)*2)/12=152.6
on 2 ohms fig cuurent draw is-244.6
((568+900)*2)/12=244.6
@B&T,sorry if i am getting it wrong,you mean to say that,i can use the 8ga wire to speaker amp(75.4) from distribution block.
what is double run of power cable? |
Sir the method is wrong...but which amp are you going to use AB class or D class as the later are more efficient and consume less current.
formula is
Current = Watts (output+ heat generated) / Voltage
The watts can be calculated as like for a amp max wattage figure whether it is 1 ohms or 2 ohms or 4 ohms. So let us assume a amp can give Max 100 watts so if it is a AB class double the load as they are 50 % efficient but if it is a D class they are 80 % (approx) efficient so the load figures will be 200 watts for a AB class and 125 watts for the D class not do the current calculation..
for AB class 200 / 12 = 16.6 Amps
for D class 125 / 12 = 10.4 Amps
So if your amp is 900 watts the If is a AB class it will consume max 150 amps and if it is a D class it will consume 90 amps.