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Typical Big 3 Upgrade Results


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I just wanted to comment and share my results on upgraded the big 3. I just did my big 3 upgrade today. i have an 08' chevy impala. i did not use speaker wire for it is way to expensive for 1/0. so i went to home depot and got some 1/0 600 volt stranded copper and used it.

before i upgraded i was getting 12.2 volts to my amp. After I upgraded i am at 15.2 volts. This seems crazy. Are these typical results? I am using stock battery and alternator as well. what kind of results have others gotten?

thanks

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Well, considering that's all stock, I'd say you're doing good!

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i bet your first test was with the car off and the 2nd was with the car on. 15.2 volts does seem a little high though

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considering you have all stock electrical i would say 15.2 volts seems unusual. in addition depending on what type of amp you have it may not like that high of a voltage.

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i dont know if that car has the ecu controlled charging or not, i think if it does there is a specific way you have to do the big three, i'm not 100% sure about it though

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my stock alt went from 14.2 to 14.7 after big 3

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thanks for the responses. I took both before and after readings with the engine on. this is not the voltage when it's hitting hard bass. it's just at an idle volume. it seemed really high which is why I ask. I have taken readings multiple times. I have an old PPI PC21400 and an old Sony XM-754HX. Both of them read 15.2. I didn't see any voltage specs in the PPI owners manual.

I was looking at getting a Crescendo BD2000d because I have been given multiple referrals to get this amp. I know that it does good at 13volts +.

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