amp install gone bad..

[sampson 10+ year member]

I didn't know whether to put this in the amp thread or this thread, so I put it here, and also have another thread asking about a blown amp in another thread. Anyway here's the story.

Ok heres the deal, picked up a jbl bp 1200.1 for a friend of mine from a guy at car toys, supposedly ran it for like 3-5 months. Anyway, installed it in my car, ran it for like 3 hours on my RE SE XXX 12 on the way home. Ran great didn't get hot, all was well. Got home, installed in a buddies Prelude. He ran it for a week, on 8 gauge wire. I know I know bad shit, but I got him convinced to get at least 4. So he came back today I just ran fresh 4 gauge for him, and then when I put the fuse back in the fuse holder the amp started pouring out smoke b4 it even got turned on. SO wtf?

I talked to someone on here, and he said maybe it was an internal short in the car. I talked to a friend of mine and he said that the subs might be wired wrong. The subs were fosgate T1 12's, and I think they might be wired really weird. I check the output and they were 1 ohm each. So I wired them togeather and they stayed at 1 ohm. Coudl that be the cause, I thought when you wired them togeather you were supposed to either get a reading of like .5 ohm, or a reading of 2 ohms? I didn't think it was supposed to stay at 1 ohm. Can you manage to screw up an amp by wiring subs in a weird way??? I don't know how exactly as I haven't opened up the box, but I'll let you know when I find out. Another weird thing to add is that he had these subs on his sony xplode wired seperate one to each channel of the xplode and it ran fine for him for 8 months. I tried hooking them up on the jbl like that and it would switch into the red light mode (protect) after a few seconds. Then i wired them togeather and it worked fine on the jbl.

Anyway any help or ideas would be great on this. Also the fuse on the power wire never blew out (100 amp) , the power wire isn't grounded, I tried 3 different grounding spots, inlcuding a bolt that Honda was using for a ground on the negative wire and it didn't change anything??? Thanks a lot for any help-Sampson

Let me know what you think, and feel free to chat with me on aim, thanks guys-Sampson

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[sampson 10+ year member]

come on guys I have almost 50 people who have read this page, and nobody has any ideas as to whats goin on???

 

[sampson 10+ year member]

100 people have read this and nobody has any ideas, don't all jump in at once now //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif, how about a new question, where could I get the amp fixed. I was told might need a new coil, and a few resistors blew out. Any ideas and estimates? Thanks-Sampson

 

[lionel2 10+ year member]

must be an ohm load problem...is that JBL 1 ohm stable?? if its seeing a .5 ohm load...something bad will happen....running 4 guage was a good idea..did you run 4 gauge ground as well?? and new RCA's and remote wires??

 

[1loudmtherfuker 10+ year member]

So he came back today I just ran fresh 4 gauge for him, and then when I put the fuse back in the fuse holder the amp started pouring out smoke b4 it even got turned on. SO wtf?

Are you SURE you hooked up the power , remote , and ground wires correctly ?

If it happend when you made your final connection I would say something is wrong there .....

 

[jeepintn 10+ year member]

i had the bp1200.1 at one time in my past, wasnt paying attn and got the 12+ and grd mixed up, VERY similar things happened to mine, jsut a thought

 

[Crzy 10+ year member]

grounded out?

 

[BaseSteala112 10+ year member]

Sounds like you could have mixed up the power and ground wires on the amp.

 

[Justin89T 10+ year member]

I had a 600.1 and i left it installed when I pulled my sub... my dumbass didn't tape the speaker wire leads so they touched... about 15 minutes later I smell a horrible smell and feel the amp and melt my skin... I fix the problem and the amp still works to this day (this is like 6 years ago). So I doubt ohm load is your problem.

Every time I've reversed +/- its just blown the fuse (I've only done it once) my coworkers done it twice and same deal, blows the fuse...

just my .02 *shrug*