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I just kinda went thru the same thing... I was running 1500 watts on a stock alternator.. not too good.. my voltage gauge would bottom out on heavy bass passages... prob a good sign I just might have been puling too many amps.. but a new batt and ho alternator later.. good to go!

dmeyer07 wrote:"135 watt rms system..."

Typo? I pray that was a typo i mean 135 watts isn't all that much :)

ha oops meant amps...little different

135amp RMS on my stock 90amp alt.