Mach5

You can win, what car are you using?

The stronger the amp, lower internal resistance it will offer to the battery, pulling more current from it. The better the battery the higher the voltage it will sustain under heavy load. The better the amplifier design the lower the voltage it will shut down (before the power supply control collapses and saturates all FETs at the same time blowing all up). The efficiency numbers you see won't matter much on this situation.

SOULMUSIC

iTrader: (8)

I'm planning a long build ground up Mach, no new car yet, leaning toward a Focus wagon , for the kids and "some" room.

Thanks for that simple explanation to my question, even I can mostly understand it