[Problem] Subwoofer keeps cutting out

[ICACHA]

if it was a loose ground the fuse would pop, but if it was a poor ground, but not loose the amount of current flow would be, shall we say, slim shady which would limit the amp from working properly.

but hey, we've been doing this for countless years, whats to say that a spring chicken cant come along and do exactly what we do? i think we'd all agree, its called COMMON SENSE

[EuroDude]

How is the Sub wired to the amp?
Using two bridged channels?
In Parallel or Serial?
Is the Sub Single or Dual Voice Coil (how many wires did you attach)?


Maybe you are running the sub with 1 ohms, which will overheat the amp and cause it to shut off. The Amp is only capable of 2ohms or more.

[destrukshn]

i don't think that jbl can handle a stable 1 ohm.
that sub is a svc, brigded into 2 channels.

[-[NoS]-]

i just checked and the protection light did come on when it cut out

[destrukshn]

check your grounds.
but your probably asking too much of your amp, turn you gain down and your bass boost down.

[-[NoS]-]

hope the pics help

[destrukshn]

can't see it.
lol, unless you host it on the ozhonda website.

[-[NoS]-]

hope that fix the pics

[destrukshn]

nah man, i can't see it when your using imageshack, use the ozhonda server, in the gallery section, then link it in here.
lol.

[EuroDude]

He's got the SVC sub bridged on the outer speaker connectors, where it says "bridged", so thats ok. But why is there black electrical tape on the Positive cable going into the Sub?

Make sure you get the Pos and Neg Sub cable correct. If thats ok, then I think the Amp may simply be too underpowered and overheating.

What is the ohms rating of the Subwoofer? 4 ohms?

[destrukshn]

sub is 4 ohms.
rms of 400 and peak of 1000
i'm pretty sure it is.

is it a 4 channel amp?

[EuroDude]

Yes its four channels, the other two look like they are powering 6x9's or something.

The Amp's power cables are quite thick, 8 or 4 gauge I think, so that looks fine.

-[NoS]-, try modifying the bass cut off on the Amp so the sub only outputs very low bass. That should provide cleaner bass hits and possibly ease the Amp up a bit.