Top 20 Kenwood Excelon KAC-X521 Car Audio Amplifier Questions & Answers

its a decently old amp i would replace amp. the capacitors are probly going bad kenwood is notoryesly bad for that

If disconnecting all power wires, and replacing all fuses (including inline ones) doesnt reset it. then its toast. Hate to break it to you :( Contact the manufacturer if you feel it is under warranty.

2 things could shut your amp...to low of a ohm load, or very low voltage drops. I need some more info to help you out.
1. Is the amp really hot when it shuts off?
2. Is it a mono sub amp or 2 channel stereo amp?
3.What ohm's are your subs & are they SVC or DVC?
4. How do you have them wired to the amp?
You can email me at [email protected] I have a idea whats going on just need some more info.

Red lights and error codes usually mean a fault ha occurred. Usually blown output transistors or input power supply caps are to blame. Don't try to fix unless you are comfortable with doing that and have the equipment. Also try emailing Kenwood tech support, they will be happy to tell you exactly what the error code is and possibly why it is happening.

Hello mogly20,

The amp probably won't know if it's you or the homeless guy, so try smashing a glass bottle on it like he did. If that doesn't work, I'd recommend you locate another homeless guy and buy another amp.

Hope this helps.

check speaker and power source

check your remote connection

low voltage check power source

bad speaker connection or rca check them

I do believe this is caused by one of your amp fuses. Depending on which + on the amp is being used. That channel has a blown fuse. have you tried running + and -, + and - to both channels to see if both subs worked? If one sub doesn't then it's a blown fuse or scarred fuse and needs to be changed.

check ground, most amps required that you ground straight from the batt. also check your rca jacks

wireing an amp can be tough it starts from the e.q.the e.q. must have a sub out.

According to page 7 of the radio's manual, E-02 means the amp has failed and DC is being applied to the speakers. It also says "Turn the POWER switch "OFF" and release the protection."

you probably blew it up. Whenever you smell that smell it is almost always a capacitor in there that blew.

To reset a Kenwood 8070 receiver without a remote, you typically need to locate the reset button on the device itself. This button is often small and recessed, so you may need a paperclip or a similar tool to press it. Consult the user manual or look for the reset button near the power or input/output ports on the receiver. Once located, press and hold the reset button for a few seconds until you see the receiver reset. Keep in mind that this process may vary slightly depending on the specific model of the Kenwood 8070 receiver.

Question edited for clarity. Try the ideas in the videos https://www.google.com/search?q=Kenwood+Excelon+DDX9904S+DVD+receiver+reset ..

This Service Manual is probably close enough for dealing with the power supply https://elektrotanya.com/kenwood_dpx-8020md_sm.pdf/download.html https://www.google.com/search?q=Kenwood+DPX-8070mj+service+manual ..

Take a look at this manual diagram. https://www.manualslib.com/manual/359815/Kenwood-Ksc-Sw10.html?page=5#manual Given the above is not your model, at least it shows the 10 pin. Ironically, below I offer a diagram of your model. The irony comes in the fact that the diagram appears labeled in Japanese But if you compare the two diagrams, maybe something will make sense from the one with the English labels. Otherwise, you might fire off a query to Kenwood customer support. https://www.manualscenter.com/manuals/kenwood/kscsw900-owner-manual.html Here is a 10 pin harness compatible with the subwoofer. Kenwood Subwoofer Amp KSC Wa100 Wa80 Sw10 10 Pin Harness for sale online ' eBay I don't have any information on how to power supply a kCSWA900 Kenwood subwoofer. However, I can tell you that the Kenwood KSC-SW10 compact powered subwoofer has a built-in amplifier with a 38 watts RMS power and a wired remote for control over volume level, variable low-pass crossover (50-120 Hz), and selectable phase control (0°, 180°) . The subwoofer comes with a power/ground wiring harness and preamp (RCA) and speaker-level inputs .

$4.95. No free ones https://www.google.com/search?q=kenwood+dpx-6200m+manual ..