Wtf!!!! Help Please.

[neli_nael]

Ok heres the deal, I've hooked up my system correctly everything powers on but the bass doesnt hit! I'm frustrated because this is the second time its happened to me. When I first hooked it up earlier today it was working fine. Maybe 20 minutes of it working then it died on me. I don't know whats wrong! I first hooked up my Power Acoustik FUBR-10 to a cheap amp and the same thing happened to me. I replaced the rca wires and the remote wire to check if it was that. That didnt help so I thought I might have blew the amp so I upgraded to the Power Acoustik LT1920/2.

The sub is mounted on a slot ported box. I have the dual voice coils on the sub bridged to 4 ohms and the LT1920 bridged also. This is the second time its happened to me and I tried getting answers on forums when it happened the first time. Hopefully this time I might get lucky.

Could my headunit be the problem, bad rca sub-outs? How do I check? I'm not an auto audio experts so please help. Thanks.

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[blackbonnie 5,000+ posts]

well first thing to do before replacing anything, is to make sure that your settings are all right. make sure your HPF or subsonic filter isnt on. and make sure everything is connected good

 

[Stel 10+ year member]

A multi-meter can be helpful in diagnosing the problem. Do you have one?

 

[neli_nael]

well first thing to do before replacing anything, is to make sure that your settings are all right. make sure your HPF or subsonic filter isnt on. and make sure everything is connected good

everythings is connected good. I opened up my sub box and checked the connections in there. I'm thinking it might be my head unit. How do I check that?

 

[neli_nael]

A multi-meter can be helpful in diagnosing the problem. Do you have one?

To check for power right?

 

[neli_nael]

anyone?

 

[SeanDub 10+ year member]

check your fuses and see if any of them have been blown

 

[neli_nael]

check your fuses and see if any of them have been blown

checked, no blown fuses

 

[SeanDub 10+ year member]

like the guy above said, do you have a digital multimeter?

if you do, use it to check your impedances on your sub - see if you blew a voice coil.

 

[neli_nael]

like the guy above said, do you have a digital multimeter?
if you do, use it to check your impedances on your sub - see if you blew a voice coil.

how do i do that with the multimeter? and what would it sound like or would it even work at all if one of the coils are blown? because it works sometimes for maybe 1-5 minutes and then it would just die on me.

 

[neli_nael]

is this safe?

"take a 9 volt battery( you can use your car battery but its not very safe for the sub) take your positive wire and connect it to the positive on the battery then tap the negative on the sub to the negitive on the battery.

if your sub moves its no your sub. if it doesn't then you have found your problem.

you could also a a partially bad speaker that is taking out your amps when its playing hard."