Capacitor/second battery question.

[Charbel Bernaba]

I currently have the Toyota Corolla 2020. and i decided to pull the trigger and upgrade the sound system. My technician installed 2 door speakers and 2 tweaters by kenwood excellon I forgot which model they are. and im running dual 12-inch amplifier by Jl w0 and they are all amplified on 400 watts amplifier by jl as well the xd400. I know the amplifier is not enough for all the door speakers and the subs together. So i decided to install another amplifier the xd600 by JL. But my question is. Do i need a second battery or a bigger alternator? My car is brand new and im afraid i would ruin the electronics in it. I'm trying to avoid the second battery or alternator situation as it's out of my budget.

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[Popwarhomie 5,000+ posts]

Well what is your voltage drop?

 

[Charbel Bernaba]

Well what is your voltage drop?

I have no idea, to be honest. I don't deal with anything related to cars or testing usually my technician does all of that. And besides, I didn't install the second amp yet till Wednesday. I only have the 400 watts right now.

 

[Popwarhomie 5,000+ posts]

Well no way to know if you need to upgrade your electrical then.

 

[Jeffdachef 5,000+ posts]

stinger volt meter. grab one and install it before doing anything.

 

[Charbel Bernaba]

stinger volt meter. grab one and install it before doing anything.

my alternator is confirmed by the dealership is 100 amps. and the amps together are about 90 amps.

 

[Jeffdachef 5,000+ posts]

my alternator is confirmed by the dealership is 100 amps. and the amps together are about 90 amps.

doesnt matter. Install a voltmeter and monitor your voltage drops or else this thread will get no where.

 

[Jeffdachef 5,000+ posts]