Run as many as you want. Just remember to give them the room and power they need. And that you'll need a fairly stout electrical system to keep up with 3K+ to run the subs.

 

Ye. well i was gonna run the 2 on a sundown 3500... but electrical as in batteries, ho alt. i still not sure how the batteries work, like how can one alt charge 3 +1(in hood) batteries. and i'm not sure. it will be going in a 4 runner that will be a dd, so i'm guessin most people will say stick to 2 subs....

 

An alt will charge as many batts as you want to hook up to it....a higher output alt will just do it faster.....how you wire them up depends on how much key-off playing time you want.

I would stick with 2 of them....a net 1.5ohm load is not a problem for most 2ohm stable class D amps....keep the gains down and you should be fine.....

HTH

 

Thanks alot big red guy. If i hook up multiple batts will it play off them while i'm driving, or off the alternator? and how does it charge, when the subs are not on i'm guessing right?

 

you hook the batteries in parallel and you will double/triple/etc the length of time you have before your batteries die.

your alternator will charge them all the time, all at once as they are all hooked up.

 

Both actually.....when the car is running the alt will supply all the current for everything electrical in the vehicle including your tunes. Its job is to keep a constant 13.8 volts available to whatever needs it.

When the extra current demands (usually from the stereo) exceeds the alts ability to provide the power, the batts will add whatever whatever they can to attempt to maintain that constant 13.8volts. When large amounts of current are suddenly required if the electrical system cant supply it the voltage will drop...this is why your headlights dim from large bass hits.

As soon as that momentary large demand passes the alt will resume trying to charge all the batteries....if there are too many too fast the voltage in all the batts will start to drop and things go downhill from there.

Electrically separating the front and rear batts is usually done to allow the stereo to play with the vehicle off without draining your main battery that starts the vehicle.

HTH

 

Thanks alot. Cleared up alot of questions. I guess this will be my last one. How do you know how many batteries to run?