How many watts could I run???

[mike11202 10+ year member]

I just got a DD9515g, I will be using it for daily driver and local competitions.

I have a 200/140 HO Alternator (highest available made for my car) and an Optima D34 Yellowtop under the hood.

I can add more batteries in the spare tire well if needed.

How many watts could I run? (4,000 max)

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[its_bacon12 10+ year member]

I just got a DD9515g, I will be using it for daily driver and local competitions.
I have a 200/140 HO Alternator (highest available made for my car) and an Optima D34 Yellowtop under the hood.

I can add more batteries in the spare tire well if needed.

How many watts could I run? (4,000 max)

highly depends on efficiency of amp but if you get another battery in the back, id say your system could sustain 2400-3000w rms (assuming 200a alt) without problems

i run stock 75a alt in my car and i have about 1250w rms total and its fine with a redtop and big3 upgrades and 1/0 power wire

 

[Flipx99 5,000+ posts]

@ 80% effeciency with 140A ( I assume 140 at idle, and 200 driving)

14.4 x 140 x .80 = ~1600 watts.

How much does the extra battery matter??

 

[its_bacon12 10+ year member]

my redtop makes a HUGE difference. and the big3 really helps too. higher voltage at idle and when its above 1.5krpm

the battery will provide at 12.5-13.5v what the alt cant provide at the given output