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Thread: 2 amps and battery, alternator |
    
Bronze Member Username: Cognition
Post Number: 51
Registered: Sep-06
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| Posted on Thursday, December 07, 2006 - 07:24 am: |
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If I install two amps, one for the components and coaxials and another for the 12" sub, do I have to upgrade my car's battery and stock alternator?
My car is nissan sentra 95 gle 1.6 liter sedan with stock alternator. my battery is 60 Ah with 100 minutes reserve capacity. I already have a 4-channel amp with 60WRMS x 4 @4ohms. I plan to add another amp for the sub, probably a 200WRMS x 2 @4ohms. |
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New member Username: Zdubb
Post Number: 4
Registered: Dec-06
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| Posted on Thursday, December 07, 2006 - 10:05 am: |
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Shouldn't have a problem at all. But if you'd like to play it safe you might think about getting a low farad capacitor for your sub amp |
Gold Member Username: Juliob
Santo Domingo
Dominican Re...
Post Number: 3625
Registered: Dec-05
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| Posted on Thursday, December 07, 2006 - 12:54 pm: |
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Zane, why he needs a cap? he has a stock alternator, he doesn't needs that.
John i really don't know if your alternator can hold 640w rms, it should but maybe your lights will dim even a little. If i were you i'd upgrade the battery at least and run 4 AWG to flow more current |
Gold Member Username: Adddisorder
West palm,
Florida
Post Number: 2201
Registered: Jan-06
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| Posted on Thursday, December 07, 2006 - 12:59 pm: |
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john you should be fine, but i would upgrade the big 3 |
Bronze Member Username: Cognition
Post Number: 52
Registered: Sep-06
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| Posted on Friday, December 08, 2006 - 07:14 am: |
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Please pardon my ignorance guys. But what is 4 AWG and what is the Big 3? Sorry but I really don't know what these things are. Thanks. |
Bronze Member Username: Dj_007
Carlisle,
KY
US
Post Number: 19
Registered: Dec-06
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| Posted on Friday, December 08, 2006 - 10:19 am: |
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yes i agree upgradign to 4 gage wire from the alternator to battery is always good and make sure you have some good ground under the hood.. thats always a good idea.. if u want to keep it running a long time without running the motor u could look into an optima battery but other than that you should be fine.. |
Gold Member Username: Adddisorder
West palm,
Florida
Post Number: 2216
Registered: Jan-06
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| Posted on Friday, December 08, 2006 - 01:13 pm: |
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big 3 is
alt + wire to bat. + terminal
bat - to car chassis
and engine block to chassis
4guage is the thickness of wire
can be bought a a good price from knukonceptz.com or hifisoundconnection.com |
Silver Member Username: Oneracistguy
TWO EGG,
FL
USA
Post Number: 101
Registered: Sep-06
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| Posted on Friday, December 08, 2006 - 01:25 pm: |
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heres a detailed guide to the big 3 with pics
http://forum.sounddomain.com/forum/ultimatebb.cgi?ubb=get_topic;f=5;t=007801;p=
the link dont want to work so copy and paste |
Bronze Member Username: Cognition
Post Number: 53
Registered: Sep-06
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| Posted on Friday, December 08, 2006 - 10:24 pm: |
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Thanks a lot guys.  |
