Amp won’t stay on.

So I just recently put two Kenwood KFC-w3016ps connected to my Kenwood kac-9106d amp. So for the first week they ran great r, everything sounded awesome and ran smoothly, but the other night driving home I went to turn up the volume and my amp randomly shut off, the amp will turn on when the car starts now but after I raise the volume up to a certain volume it turns off. I’m completely confused as to why, I’ve check all the fuses and wire connection and everything seems to be good, if anyone has any other soulution that would be great!

 

Sounds like a thermal overload shutting it down, did you wire in it bridged? You may be trying to run at a impedance that is not stable for your amp. I didn't look up specs on your speakers and amp but if it will turn on and play but when u turn it up it cuts out its definitely some kind of overload, you may try turning your gain down if it's turned way up, but if you have to turn the gain way up you need a bigger amp.

 

Each of the speakers are 400w rms, with 2000w max for each, the amp can run 1,000w rms at 2 ohms. With a 2000w max.

 

I don't think you understood his question. How do you have your speakers wired to the amp? Series? Parallel? Bridged? I agree, I think you are running into a Thermal overload problem.

 

this was happening to me as my battery was dying (and i didn't know). i run about 1600-1800w and have a cap, but the power down issue was recurring. then it died, i replaced the battery with a strong one, and haven't had power issues at all since.

 

Looks like the speakers are 4 ohm. Are the wired in parallel? If so they would effectively be running at 2 ohms, is the amp switched to 2 ohms if that is the case?

Bridging doesn't appear possible with this amp, 1 channel.

 

I would also recommend checking your ground connection, did you scrub the paint off the ground location?

 

Had a smiliar issue... Turned out that my inline fuse by the battery was junk. Replaced it with a better fuse holder. . No issues since.

 

did you run similarly high volume in the first week when it did not shut down? if yes did you run it for a while, long enough to possible get thermal overload? some holes in diagnostic info here.

 

Basically already stated here but perhaps better written, a good place to start though:
http://rftech.custhelp.com/app/answ...s-my-amplifier-getting-hot-and-shutting-down?

 

okay so re did the wiring so it was setup to connect to two 4 ohm speaker from a 2 ohm amp. But still doing the same thing

 

Is the amp new or used? I went through 2 of those exact Kenwood amps in my Accord. One replaced under warranty. The other was out of warranty and couldn't be replaced. The issue was some what different. It would cut off when it wanted and sometimes it just wouldn't turn on at all. Then sometimes it would be on and still not work. Seemed to be an overheating issue.

 

Yeah it’s brand new. So I redid the wiring turns out on the speakers is blown. Didn’t realize that until I barely let the volume up to keep the amp on and took the subs out. Would one of the sub blowing cause the amp to shut off?

 

Yes. Is your gain set too high?

 

How would I check that? I don’t have a knob on this amp that allows me to turn it down like bass boost and such.

 

Looks like its labeled as input sensitivity(v) on your amp. There's one for frequency, a low pass filter and one for voltage, the gain adjustment. Are you using a stock headunit? Is the signal input in speaker wire or with the RCA (red/white) plugs?

 

I have the LC2I converter for the RCA conmected to the head unit. But I think the whole issues was I had the wiring setup wrong. I’m not sure how the sub died beside me blaring it to much. Which it blowing cause the amp to overheat and shut off? I think this is what happened from what everyone’s said?

 

Pro tip. From being on here and seeing a lot of wiring posts. Pictures are your friend, it's hard to tell how something is wired without a diagram or pictures, plus pictures can help with getting a definite answer on the issue, especially if wiring or the gain settings are an issue.
Anyways, try your one good speaker, just unwired the other one and see if amp shuts down, if so then you probably have another issue or damaged amp. If not you will know the blown sub is causing a thermal overload.
Also I had a line converter once that had gains on it too, you may be putting too much in to the amp, level wise so it maxes out the inputs on the amp, now I'm really speculating.

 

Thanks! Still learning how do, and ask on this page but it’s all helpful! And yeah I see it now! Just trying to figure out why the speaker died now

 

These guys on here are some of the most knowledgeable people on any forum I've been on, tons of info and very quick to answer questions.