Subwoofer is Buggin out idk why

[viperrgh2 10+ year member]

So I installed a system in my buddies 06 legacy gt. Factory radio with a hi-lo of the rear speaker (rcas test great every time I hook them up to an external player). Power Bass 400.2 amp (3 months old) to a JL 12" W3 (Bought used probably very old) with 4 gauge wiring and remote wire of the cd player fuse. Anyways first it was playing fine then started to once in a while play loud sounds not in the music randomly at any radio volume. Then I made a more solid ground and when I hooked it up the sub woofer stayed fulled extended and did play but sound like crap starting from full extension. We disconnected it, checked the remote wire by getting remote direct from battery (same problem). Few hours later we re hook it up and its back to just making random beats all the time.... We hooked up a house speaker to the speaker out puts and that played as normal.. is the sub blown or could there be something else? never seen a sub blow like this....

Click to read more...

 

[infamous_e46 5,000+ posts]

its a just a jl moofer flexing its nuts

it will stop once you submit to its awesomeness

 

[skydeaner 10+ year member]

the amp is probably blown. I am sure the house speaker is 8 ohms or so, so it is putting less of a load on the amplifier, that is why it sounds like it plays fine. Take the JL inside and test it on the house amp. I bet it's fine.

 

[DammitJames 10+ year member]

So I installed a system in my buddies 06 legacy gt. Factory radio with a hi-lo of the rear speaker (rcas test great every time I hook them up to an external player). Power Bass 400.2 amp (3 months old) to a JL 12" W3 (Bought used probably very old) with 4 gauge wiring and remote wire of the cd player fuse. Anyways first it was playing fine then started to once in a while play loud sounds not in the music randomly at any radio volume. Then I made a more solid ground and when I hooked it up the sub woofer stayed fulled extended and did play but sound like crap starting from full extension. We disconnected it, checked the remote wire by getting remote direct from battery (same problem). Few hours later we re hook it up and its back to just making random beats all the time.... We hooked up a house speaker to the speaker out puts and that played as normal.. is the sub blown or could there be something else? never seen a sub blow like this....

i would say the amp if the sub is staying extended then it is getting DC voltage instead of AC. sounds like the amp isnt converting it right

 

[viperrgh2 10+ year member]

So now today we hook the system back up, the sub played as normal but lacked power.. basically the amp has no balls anymore.. we hooked up a 6x9 to the amp and it hardly moved that... seems it's the new amp.. time to send it back...