-2x Rockford Fosgate HX2's in 4ohm load wiring
-Kenwood KAC-9152D Amp
Alright, this amp WAS working for a good while on my old setup, which the only difference was a box. At some point, one of the wires on the sub's coils came loose (due to someone not putting it in the clip properly), and it started making a fuzzy noise, but still worked ok. Up until one day, my amp just wouldn't turn on.
Eventually, the box just fell apart (shoddy construction, this was a second hand box), so I pulled the system out, pulled the power fuse from the wire, and just had the components floating around in my room. Eventually, I got a new box, rewired everything, and hooked it all back up into my car, only to finally remember that my amp will not turn on.
I pulled out my trusty DVOM and my power probe. Full battery voltage in, ground is good, and the remote wire is also sending 12.6v in. So everything is in order. I checked the amp fuses again, JUST in case. All good there.
I've opened up this amp before just to do a trace check when it first went. All the traces are good, no burns on the components. What in the world could be the issue?
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Power control wire - tells the amp to turn on, usually connected to the blue/white or blue wire when blue/white is not present on aftermarket radios. On factory systems you usually want to hook up this connector to an acc source on the car
either the wiring your running is short circuting,or the amp is shot, or the subwoofer is shot, try hooking the same speaker up to the other amp. along with the other speaker to the other amp, see if the same thing happens.
Dang! That's a class D anp! How did you fry it? If you "replaced" the internal ground wire and now it just blows fuses, I would say that the amp is direct shorted at the power supply if the fusesblow instantly when you put the fuses in.
Does it shut off for a couple of minutes or a couple of seconds?
Is the amp hot when it shuts off?
Are you sure you have the speakers wired to an acceptable ohm load for the amp?
Have you measured the voltage at the amp (across the B+ and ground terminals) to make sure it's not dropping too low on hard bass notes?