help i think i fried my amp

[brooksi 10+ year member]

ok i have a legacy LA490 600 watt amp pushin 2 JBL GT Series 10's. I am using 8ga wire. My problem is whenever i turn it on the green power doesnt come on any more now the red protection light comes on can somebody please tell me what that means?? i am just wondering if i need to get a new amp or a way to fix the one i have

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[Corsica 5,000+ posts]

u need to wire ur subs differently. tha mp is getting to low a resistence load so its in potect mode.

 

[brooksi 10+ year member]

should i run a 4ga wire? is that what you mean?

 

[pioneer 10+ year member]

nope he means that you have to connect your subs differently...it could be that you have them connected in parallel...try connecting them individually to each speaker output terminal...ie...connect your left sub to the left output...and the right sub to the right output

how many channels does your amp have ?

if thats still not working...check your ground connection...it may have become loose

good luck

 

[brooksi 10+ year member]

its a 2 channel amp, i noticed that when i touched the end of the ground wire to the amp it didnt do anything and i know normally when u have the battery connected it should spark so maybe my ground is loose

 

[pioneer 10+ year member]

yeh maybe your ground wire is loose..lemme know how if you got it to work

 

[brooksi 10+ year member]

i tried just putting it back into its channel, do you think i should rip up the carpet and check it? i was thinking of running 4ga wire anyway so if it doesnt work with my 8ga then i am going to rewire it with 4ga maybe it will work then

 

[pioneer 10+ year member]

well before ripping up your carpet...you can use a circuit tester to check that your are actually gettin current in your cables...if you are gettin current then go ahead and rewire...if you are not gettin current...then i believe there MAY be something wrong with your amp

good luck

 

[brooksi 10+ year member]

what does a circuit tester look like and where can i get one how much does it cost?

 

[pioneer 10+ year member]

well it depends....some people use voltmeters....but to be sure...you can go by an auto electrician and ask him to check it out for you...he charge you much for that

 

[RangerMan Premium Member]

You might want a new amp!!!//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif