amp randomly turning on and off

[blimblam 10+ year member]

its only my sub amp that is doing this and i connected a remote wire from my comp amp to the sub amp so it cant be the remote wire, could it? and i just re-did the ground, should i check that anyway?

anyone know whats wrong? i remember someone started a thread like this about a week or two ago but i can't find it.

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[mikewiththelip]

saftey maybe?

im just spitballin here but that used to happen to me when i had my subs bridged, so i changed it and now its ok...but they would hit fine and than all of a sudden they would just cut out and not hit for a beat or two and than come back on.

 

[jco1385 5,000+ posts]

is it going into protect? if so, back the gains off a touch and see what happens

 

[psych0ticnemes1 5,000+ posts]

Make sure your subs are wired to the correct impedance. Sometimes the amp will act wacky when it is wired to a lower impedance and overheats. Are you sure your amp is turning on and off and it isn't your subs cutting it in and out? I would make sure the wiring going from the amp to your subs is hooked up properly. Make sure the connections are secure and the wire isn't cut.

 

[blimblam 10+ year member]

none of the lights are on on the amp so i know its not my subs cutting out but the amp

 

[Pl8er 5,000+ posts]

How did you set the gains?

As stated, check all of your wires, make sure that your fuse is not loose (take it out and plug them back in) verify the power is making good contact.

I see that you just redid the ground, but how did you do it? Did you sand off the paint?

 

[blimblam 10+ year member]

yes i sanded the paint. when i get home from school today and it isnt raining, i will check all my wires and fuses

 

[wr11shredz 10+ year member]

protection mode maybe?

 

[blimblam 10+ year member]

protection mode maybe?

nope. protection light is not on, neither is the power light.

 

[jco1385 5,000+ posts]

has to be a wire problem or defective amp.

check all connections with a DMM. you say the remotes are daisy chained and only 1 amp cuts off?

 

[blimblam 10+ year member]

you say the remotes are daisy chained and only 1 amp cuts off?

yes. the remote wire that goes to the HU is the comp amp and that doesn't cut out, but its the subamp that cuts out

 

[jco1385 5,000+ posts]

yes. the remote wire that goes to the HU is the comp amp and that doesn't cut out, but its the subamp that cuts out

where does the sub amp get its remote from?

 

[blimblam 10+ year member]

where does the sub amp get its remote from?

the comp amp

 

[psych0ticnemes1 5,000+ posts]

Try running the amp turn on lead directly to the sub amp and see what happens.

 

[jco1385 5,000+ posts]

take a dmm to the pos and neg terminals of the sub amp when it cuts off. this will tell you if it's the power leads or the remote