Opinions on system please?

Question

Setup

(1) FI Q 12"

3 ft^3 ported enclosure@34hz

Us Amps XT4000D

0 or 2 ga wiring?(This is a question in itself)

Regular Die Hard Gold up front and Optima yellow top in the back

Stock 143amp alt

Comps and comp amp soon to come

I would pretty much like electrical opinions. Do you believe the two battery setup along with the stock alt will sufficiently power the Sub setup along with the upcoming comp setup. The comps are approximately 60wrms a piece running off their own amp.

Answer 1

If your total system power is 1200 watts RMS or more,  you will need to:

1. Upgrade the alternator to a high output alternator

2. Upgrade to a heavy duty deep cycle battery

3. Upgrade the "Big 3" - that is to replace (or add to) the power wire between the battery and alternator, the ground from the battery to the chassis and the ground strap from the engine/tranny to the chassis with at least 0/1 AWG wire.

Failure to do this will result in the early death of the alternator  as it will eventually fail.

Here is a guide that will calculate what size alternator and power wires you need  http://www.datafilehost.com/download.php...

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A second battery is never a good idea as it's an added strain on the alternator to charge two batteries AND supply power for the car. The ONLY time a second battery is useful is if the audio system is to be used with the car off.

A capacitor is only good so far as the audio system isn't trying to pull too much from the electrical system. A cap doesn't provide more power, it's designed to 'stiffen' the voltage to the amp, nothing else. If the current isn't there, a cap won't help.

The alternator must have at least 20% more amperage power than the entire vehicle and sound system combined for a cap to be of benefit which is ironically the same requirements for an amp to be efficient.

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Answer 2

yes, the money is better spent on the alternator

the extra battery will only help with playing the sounds when the car is off, the battery gets charged from the alternator so if you add another alternator you are just putting more strain on the stock charging system (which will damage the stock alternator form over working itself) which would just add to the problem