Need Help With Electrical Needs For My System!

[200dBs 10+ year member]

Ok so I have a nissan xterra year 2002 and currently it has just the stock electrical system. No Amps and no subwoofers yet. Does not have a high output alternator, and has one 12 volt battery replaced about a year ago.

Ok here is the base of my upcoming build and i have already gotten comments of how im going to need to upgrade my electrical system BIG TIME.

So im looking to get two FI BTL N218's which run at 2000RMS EACH Wired at 1 ohm to a AQ3500D.1 which at a 1 ohm load will give 4300 RMS watts, 2150 RMS to each subwoofer.

What type of Alternator will i need? How many batteries and what type? What changes in the wiring should i do? And any other electrical help would be nice to know.

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[keep_hope_alive Premium Member]

i would get the largest HO alt you can fit - look to Ohio Generator.

and upgrade the starting battery then add 2-3 more batteries in the back - Kinetik or similar AGM batteries. Parallel sets of 1/0 from front to back if your alt is larger than 250A.

how you make your connections is critical - solder filled ring terminals with good quality bolts and terminals.

 

[200dBs 10+ year member]

Ok thankyou Let me ask though so far the two subwoofers and the amp together cost 1707$ and for all these eletrical upgrades i dont no how much it will cost, I cant go over 2500$ could u give me an estimate?

 

[200dBs 10+ year member]

what if i changed my total RMS watts to 2000.

halfing it.

would that still need a high output alternator?

 

[audiolife 5,000+ posts]

make sure you have 70 amps of alt for every 1000 watts and make sure you have at least 50 for the vehicle.

 

[200dBs 10+ year member]

Ay where can i learn all this? I want to learn all the formulas and stuff so i dont have to always ask?

 

[Bfat567 10+ year member]

This would be a good place to start,

Basic Car Audio Electronics

 

[audiolife 5,000+ posts]

Ay where can i learn all this? I want to learn all the formulas and stuff so i dont have to always ask?

watts = amps x volts. 1000 watts/14.4 volts = 69.x amps.