yea i have a 1200 watt kicker amp with two kicker L7's subwoofers. my amplifier will power the subs so they hit but only for a certaian amonut off time like a couple days thenit cuts out. when it cuts out the protection and power light onthe amp are both blinking. but also when it cuts out the windows roll up and dwon slower and the enrgy from the car seems to be gone. it will remain cut out until i basically dont use the car a couple days. i think my system is drawing to much power from the car. fo you think i sould get a bnew alternator to solve this problem? or whut would i need to do ?

 

R U running the amp bridge?? How many channel amp? is it 2 ohm stable? Is your speaker 2 or 4 ohm speakers? how's the ground wire?

 

you just have it wired wrong...not enough resistance...check the what you subs and amps can handle and adjust accodingly... 4ohms is the norm i think...or just stop blasting your system....

 

yes the amp is bridge its a 2 ohm stable amp

 

so what could be the problem?

 

What sized power wire?How long is the cable? Also do you have a cap? Thats seroius load and with the semiregulated Kickers you need at minimum 4 gauge power wire preferable 2 gauge and at least a 1 farad cap. Else just run them stereo

 

How bout the speakers? Dual voice coil wired for 4 ohms?? Just try this test. wire the speakers to the amp in series. Meaning 1st speaker + goes to the amp +, then the negative goes into the 2nd speaker +, and finally the 2 speaker - to the amp -, See if it still cuts out?

 

i have a 4 gauge wire but no capicitor, why woudl the speaker have anyting to do with it or do you mean the subwoofers. the amp cuts out

 

are the subs dual voice coil? What is the resistance of each speaker or coil?

 

riesistance ? whut do you mean by that and the dual voice coil

 

Every speakers has resistance, commonly 4 ohms. Let me break it down for you. lets say a lightbulb, you put the positive to the car battery + and the - to the battery -, the bulb lights up. Now if you just put a regular wire to the = and - what happens? you'll burn the wire and drain the battery. If the resistance in the speakers are too low for the amp to handle, it will then trigger the overload protection. I mention before for you to wire the speakers in series. This is to increase the resistance.

 

ohh i see, what you are saying, so i sohuld trythat?

 

or do you think im just drawing to much power form the bateery to power the amplifier seeing as it 1200 watts max 1400

 

you mean the door speakers?

 

If that method works, that means its your speakers. They are not defective! It's just that they are probably 2 ohms speakers. 2 ohms + 2 ohms wired in parallel = less than 1 ohms in total resistance. Check if they are dual voice coil. If they are, you can wire them to 4 ohms.