Comments on: JBL GTO1201.1 Kicker L7?

By: sparky3489

sparky3489 — Tue, 11 Aug 2009 21:20:49 +0000

Power and ground should be the same size.

If your total system power is a 1000 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 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 1/0 AWG wire.

Failure to do this will result in you replacing them anyway as the alternator will eventually fail.

Here is a guide that will calculate what size alternator and power wires you need as well how to set the gain

You’ll need Microsft Excel to use it.

A second battery is never a good idea as it’s just an added strain on the alternator unless you plan on running the system with the engine off.

A cap 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 esle. If the current isn’t there, a cap won’t help.

See my site for more info

By: MLJ

MLJ — Sat, 08 Aug 2009 21:55:16 +0000

Make dam sure you bought the dual 4ohm version or else your sub wont get enough power. Why? the amp put out about 1200 watts @ 2ohms. So if you wire you dual 4 in parallel you get 2 ohms and everyone is happy. If you bought the dual 2 you just f’d up. Use at the very least 4guage wire.

By: haro_bikes1

haro_bikes1 — Wed, 05 Aug 2009 17:08:27 +0000

JBL amps from what I’ve heard are nice. That amp will put out enough power to that sub. I’m assuming you have the dual 2ohm version? As far as the 5 ga. wire I’d go bigger. At least 4 awg. Look at the link below jbl has a chart for the recommended wire and 4 awg is assuming you are only running 10 feet lengths. Personally you could go bigger if you’d like. That amp pulls 115 amps so you need an amp wire kit that corresponds to that. The second link i posted below is a kicker 1/0 kit for under 80 bucks shipped to your door. Last I heard though onlinecarstereo doesn’t have them in stock. You won’t find them cheaper than that though from what I’ve been able to find. The amp has 3 40amp fuses so 120 amps is the most the amp will pull. I’d say you need to at least do the big 3 don’t bother with a capacitor. The money spent likely wouldn’t help your electrical system like changing out your big 3 would and you should be able to do the big 3 with less money. Have any other questions feel free to ask me.

By: lastofseven73

lastofseven73 — Sun, 02 Aug 2009 12:02:39 +0000

Yeah it will. I ‘d say you can turn up your gain 2/3’s way,but I never take mine passed a 1/4.If I need more,I get a bigger system.Monster cables work great also. Check out cardicountsteres.com for products and prices,then check locally if you can get those products and or prices similar. As far as you ground goes,what gauge is it? That’s what matters,I run my ground no more then 2 guages smaller than my pos.Schoche isn’t a brand of wire I’ve used,but they may work as long as you’re not high end all the time. If you’re worried about charging,get a 1/2 cap- a full cap with that set up,that’s all you need,1/2 cap really if you get a good one,or go to walmart and buy the biggest they have,1 1/2 is what they sell where I live.

By: tuners_x

tuners_x — Fri, 31 Jul 2009 18:57:02 +0000

Amp will work good with sub.

You will want to upgrade your wire though, go with a name brand 4 gauge wire. Can only think of Stinger and Kicker wire at the top of my head.