Why is my Kicker 08zx650.4 amp turning off in my 98 Deville??

Time for a bigger amp or better wiring to the amp. You can try a cooling fan setup to cool the amp. Brushless computer fans work pretty good, draw very little current and move quite a bit of air and they're really cheap to buy.

Sounds like one or more of the output transistors have gone and the amp protects itself from any further damage.

Protection LED on, no output? Amplifi er is very hot = thermal protection is engaged. Test for proper
impedance at the speaker terminals with a VOM meter (see the diagrams in this manual for minimum
recommended impedance and multiple speaker wiring suggestions). Also check for adequate airfl ow around
the amplifi er. Amplifi er shuts down only while vehicle is running = voltage protection circuitry is engaged.
Voltage to the amplifi er is not within the 10–16 volt operating range. Have the vehicle’s charging and electrical
system inspected. Amplifi er will only play at low volume levels = short circuit protection is engaged. Check
for speaker wires shorted to each other or to the vehicle chassis. Check for damaged speakers or speaker(s)
operating below the minimum recommended impedance.
No or low output? Check the balance control on source unit Check the RCA (or speaker input) and
speaker output connections.

put a 12 volt fan on it

sounds like you are having a coil problem

rewire the subs-each sub you want in series=8 ohms per sub-then at the amp wire the two 8 ohm subs in parallel which brings the ohms back down to 4 ohms which is optimal for the amp and it shouldnt shut down on you any more-try that-good luck

how many RMS watts does the amp put out???

You need to get an amp with higher wattage. Obviously, your amp cannot handle those two 10" monsters. hehe Nice Subs though :D

there is a safety feauture in the amp that shuts if off it is getting to much power from cd player outputs. all amps have this. some cd players also have this. unfortunately there is no way to get around this besides turning up the amp and turning down cd player

hello my friend you should have the input signal set to 500 miliamps do not go over, another thing is that if you have good ground and the battery is good and it has the sufficient amps to push it.also the ohms of your spkrs are not too low,you need to check all that.


good luck


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