Kenwood amp blowing fuses

does anyone know why a car amp keeps blowing fuses? i got a [SIZE=-1]Kenwood eXcelon KAC-X621amp and when ever you hook it up it will power up for like 5sec thin blow its in-line fuse. i done tried all different size fuses but it still does the same thing. does someone know what might be causing this?
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like i said earlier, what gauge is the main wire, how did you run it, what are the total amps for the fuses on the apm itself? did you run grommets when you ran the wire by metal, check for a short. if everything is peachy you might have an internal short in the amp, and really nothing can be done about that, but i have never really seen that happen. i would really check the main line.

 

Also, is the car running, when ye turn the amp/radio on?

The amp sounds like it is pulling way to much, might need a larger fuse. Unless the amps fuses are the blowing.

 

i just got this amp from a friend he got it from someone so he took out his old amp and placed in this one. he said he hooked it up and it blow the main line fuse. i think maybe a short in the amp. he even tried putting the biggest fuse you can get on it and it blew it. he has the biggest and best power-line you can get for a amp. its not blowing fuses in the amp its blowing the fuse on the line from the batt to the amp.

there is 3 25amp fuses on the amp.

there is little switchs on the amp that says LPF Freq 50-200, HPF freq 50-200, input sensitivity 5 through 0.2, filter hpf or lpf, amp cont on or off, isf on or off, operation mono or stereo, and id number marked zero through nine can any of these be set wrong causeing it to blow the fuse?
ok i just had a look at the amps fuses and the metal in the fuses look cooked i dont know if he checked them or replaced them but could this be a sign?
as you can tell i know nothing about amps

 

It could be. A fuse is design to be blown, if to much amperage is being drawn. Technically, this will prevent damage to a piece of equipment. But, if all the fuses on the amp itself is blown. You may be outta luck. Just my 1 cent.

 

the fuses are good on the amp the metal just looks blue in the middle (ie look cooked)

 

DO you still have a manual for this amp?

Is the amp controlled by the receiver, or is it setup in another way.

 

Without getting technical the amp is dead,I'd try sticking it straight to a battery to rule out shorts

 

i dont got a manual i got the amp from a friend and he got it from someone else. i dont know tomuch about amps so what you mean by radio controlled? i beleave its controlled by the user i think because you can change settings on the amp by little switchs on the amp that says LPF Freq 50-200, HPF freq 50-200, input sensitivity 5 through 0.2, filter hpf or lpf, amp cont on or off, isf on or off, operation mono or stereo, and id number marked zero through nine

 

The reciever is what gives the amp what info it plays.

But, as Rikky, states, it could be dead.

I'd take it (the amp) to your local car audio shop, and get a 2nd opinion. Not a circuitcity, but a shop that dedicates itself to car audio.

 

If the amp is blowing fuses within 5secs theres something seriously wrong,I wouldnt rule out the Amp being wired wrong,the kind of energy needed to blow those kind of inline fuses "the ones that look like a solid copper bar" is pretty large

Do the amp LED's light up in these 5 secs,if they do its probably wired up right

 

yea everything woulld come on the menu screen the lights and fans all would power up then the fuse would blow (so he says lol)

 

Treat it like a PC prob,get the amp on its own with a 12v power supply "battery" see how it powers up

 

ok i will treat it like i would with a pc problem....

first things first does it work in safe mode.
#2 does the reset work (it has one lol)
#3 stick toung to battery to see if its charged
#4 wake up from the shock and hook battery to amp to test
#5 put out the fire it made lol j/k

 

here you go everyone its the manual for the socalled amp

ftp://inform.kenwoodusa.com/MANUALS/KAC-X621.pdf

 

i would just wire it up without the car coming into play, get another battery and place it in the trunk, run the black line to the negative and the red to the positive, get a good big line 00 gauge at least with a 60-70amp circuit breaker( good for diagnosis, stop spending money on fuses). than take the remote wire and touch it to the positive lead on the battery. does it still blow the circuitbreaker? if so you got a bad amp, thats the end of that. if not move on, turn the stereo on, while having the amp's sensitivity turned all the way to 5V. now turn the stereo to about half volume, slowly turn the sensitivity down, does it still blow and if it does at what sensitivity? technically speaking that amp should not pull more than 60-70 amp max at full volume thats why it has the three fuses.

 

could i do it this way? take a car battery, the amp, afew speakers, and a old radio hook them all up on a table and see what happens.
because i got a old boombox with the rca hookups my friend runs a car shop so i can get a battery no problem same with the wire and i got afew old woofers.

 

Don't unhook anything from the car. Disconnect the power feed at the amp. If the fuse blows again the problem is not the amp. I assume the fuse is a length of wire away from the amp and not built in. Usually the fuses on the amp protect the output of the amp. Because you say the fuse takes five seconds to blow it is not likely the wire is shorting to the car body. Those shorts blow the fuse immediately, usually. Again this points to the amp. Take the cover off and have a look.

 

yeah you could do that, i just made it easier so you don't have to take everything out. but if you want to take it out of that car that's fine too. if it does not blow out of the car, it might be shorted to the body. also how big ( what gauge) is your ground wire, remember that it has to be at least the same size as the hot wire, usually the bigger the better.

 

i got the amp on my bed lol it was never in mine he had it in his truck and it was blowing fuses so he took it out and gave it to me. i done opened it and it looked as clean as can be i did not see no burns on the case or boards from a short for now i got to go i will try some more later on. bye y'all