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      09-19-2019, 10:22 AM   #1
colddog
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Drives: BMW 328i xDrive 2011
Join Date: Aug 2019
Location: Montreal, QC

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Exclamation Alternator Voltage and after market amplifier

Hi everyone! I have searched the forum before posting this. I have found that the alternator is correct and can charge as high as 15.3V in cold condition and full load but my question is.... does somebody have an after market amplifier wich is rated input power between 10.1V and 15.1V? I’m concern about the thing that my alternator can reach 15.3V that is over my amp rating. Normaly my alternator charge around 13.8V and 14.4V but can peak to 15.3V when it’s cold outside. Did someone fried his Amp due to this alternator voltage?

Pioneer answer me that it can frie my amp if it stays constant at this voltage... so, i can tell you guys, don’t use a capacitor because the capacitor will charge at your alternator peaks and will stay at this voltage if your amp is on but no music is playing... it happen to me and fried an amp. But i need to know if anyone had problems with aftermarket amps without capacitor and alternator reach over 15.1V

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