Problem Working Amp An Sub

[GTS4-32]

Hey guys, i just got a amp today and thought id get it all hooked up. Now ive connect several amps to my sub before so i know the basics of wiring a amp and sub, but this time when i wired it up the sub wasnt working.

The amp is on, ive connected the sub but its like theres no reaction, i tried mix matching channels but nothing. I took the hu out checked the wires, everything seems fine. The only other problem is that the hu's lights stay on after the car is turned off. could anyone here know whats happening and how it could be resolved, any help would be appreciated.

Cheers,

Steve.

[RANDY]

HU on after car off? Could you have the ignition and constant power mixed up on the HU?

And you've checked your remote wire from the HU to the amp, right? A multimeter should show 12v on it when the HU is on.

Can you check all the above with a multimeter and get back to us?

[GTS4-32]

I solved the hu light always on issue, my main issue is now the sub not working.

Ye ill see if i can find 1 to check.

If im not recieving 12v from the remote wire what do i do?

[msnismo]

Silly question but is there a sub on/off function on the HU? Have you checked thats on ? You said the amp has power and its just the sub not working yeah???

[GTS4-32]

yea thats right, just the subs not working. But unfortunately for me there isn't a button ive missed.

[DRD-00F]

Push down on the cone (gently, only need about an inch of movement), is it a smooth feeling? If not, the sub is rooted... There is another way the sub can die, the two wires going to the voice coil can snap (I've done that a few times), IF thats the case, get some wire and reconnect them...

Can you test it with another sub?

At this point it could be the amp, sub or the signal from the RCAs... If a different sub works, then it is deffinately your sub...

[GTS4-32]

Well i no the amp works, it may actually be the wires connecting to the sub, ill give that a go.

Cheers,

Steve.

[killswitch88]

master/slave setting on the amp? i know my subs never used to fire unless the switch was set to the right one. cant remember which though

[rocketboy]

Also, try test the impendance across the sub by using a multimeter on the terminals. If no impendance measured, you have a cooked voice coil. Try another sub on the amp, see if it works ok.

[GTS4-32]

thanks guys, ill give it a crack later this avo. Thanks for your inputs

[OoskylineoO]

when i was wiring up my sub and amp everything worked except the sub. In the end i found out that where i attached my grounding wire, it wasnt a good spot..got the wire and stuck it somewhere else worked fine lol.

[GTS4-32]

- i checked the ground wire and that seems to work fine

- master/slave settings are fine

- the subs cone goes down smoothly so it doesnt really indicate that its rooted

- the wires going to the sub seem to be fine, not that ive tested it with another sub but they look to be fine.

The only thing to check is the impendance accross the sub, when i can find a multimeter ill have that checked, otherwise theres nothing else that i can do, other than take it to someone that knows what there doing to sort it out.

Thanks for your help guys/girls,

Steve.

[95SKY]

Why dont you just get a crappy old speaker and test it, sure it will probably blow it up but least you know if its getting a signal or not?

[RANDY]

So you now have 12v out of the remote wire?

And the amp doesn't turn on still? Is this where you're at? Or are you saying that the amp is on, but no sound from the sub?

[GTS4-32]

thats right mate, amp works, 12v from remote wire but sub doesnt work.

[RANDY]

I guess the next step is to eliminate either the sub or amp from the problem. Hook up an ordinary car speaker or something to the amp instead of the sub. Don't turn it up super-loud, but if it works, the sub is dead. (possibly burnt voice-coil or something?)