Today while I was driving to work, I lost all bass. I checked and my amp is no longer powering up, not lights what so ever come on. The amp is about 5 yrs old and so are the subs, I checked all the fuses and everything and all the wiring is in good condition. Could my head unit (which has been having problems) be causing this or is my amp more than likely dead? Thanks.
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this is caused by inproper wiring from the speakers/subs to the amplifier.. an amp will still put out power to subs and speakers when it's wired improperly but it won't last for very long doing it... 6 months is longer than usual....
Well Friend, the chances that your amplifier is Fried are very low. First of all deactivate the Auto Turn On Feature on the Amplifier. Second, check that the voltage is received at the Power connector of the Lead that is coming from the Battery using the Multimeter to make sure that the Main Fuse is all right. If No Go, then check the Amplifiers fuses thoroughly. Then check if the Protection LED is lit. If it does not work after all of it, get it checked at any local radio shack as I'm sure, it cannot get fried just like that, as it is possible that some internal connection has fried or became loose and will be fixed without spending much. I wish it will help you..
I just fixed my bass amp with a similar problem last week: the problem is related to a loose connection on the PCB board (likely).
A bass amp is a rough place for circuitry: the low rumble and power shake a bass amp more than a guitar amp.
In my case, the power transistors needed to be re-soldered and then the grounding bolts and screws needed to be removed and cleaned because the connection was bad. Remember that when two different metals needed for an electric connection are toughing, there is the likelyhood that corrosion WILL happen.
My bass amp did basically the same thing yours did: sounded good at low volumes, but at higher volumes it would act up.
In short, there is nothing you can do (unless you are a repair person): you need to take it to a local music shop and have a tech fix the intermittant contact problem: someone who knows what they are doing should only take an hour at most.
Check the main amp fuse under the hood, even if it looks good just change it. Often times that light on the amp can come on just from the power amp tunon wire. Try a friends subwoofer box just to make sure the connectors on your box are good, and if that doesn't work then give me some more details....year/make/model of car, what kind of sub, what types of things do you see on the side of the amp....is there a green light as well as a red light?
it might be that your wires from your amp to your subs are too thin. since they were relatively new the first three months, they were probably undamaged, but after pushing them too much, they probably have broken wires, and can't get enough power to the subs when turned up, i suggest getting thicker wires before investing in a capacitor, it could save you money.
Has the amp been overheating lately? It's quite possible that the amp could have just blown. Smell around the outside of the amp for an electrical burnt smell. If available, see if a friend also has an amp hookup and try removing your amp and copnnecting to the friend's cables. That will tell you if it's a wiring problem or an amp problem.