Just installed brand new amp and subs. Amp went into protect mode and turned off.

[Bjaffry]

I just installed a nitro bmw485 amp that I got with my subs. After plugging it up, the power light was green for a few seconds, then it turned red and turned off. I unplugged everything from it but the power cables and still nothing. I put a volt meter on the wires and got 12.68v..so the amp is getting power. The amp never even pushed the subs, it just turned on, then off.

Also I believe its under warranty from the manufacture, but I can't find a contact number or a website for this company. The shop I bought it from won't help..they got really bad service.

I'm sure this amp isn't too good, but it came free with the subs.

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[Louisiana_CRX 5,000+ posts]

sounds like your subs are wired at the wrong ohm load...most likely to low for your amp so amp is unstable

 

[Bjaffry]

The amp doesn't even have any power though. With or without subs, the amp isn't turning on. Also the shop that sold me this combo also sold it to someone else that got it installed there, and his worked fine.

 

[IonRL205 10+ year member]

If the shop sold sold it to you, you should go there and complain. Did they install it also?

 

[Heeltoeclutch 10+ year member]

I'm sure you didn't but... you didn't remove the amp turn-on wire did you?

also make sure you're getting voltage at the turn-on wire.

 

[Bjaffry]

No, I installed it myself. These guys are hard headed, once they made the sale, they want nothing to do with you..

 

[Heeltoeclutch 10+ year member]

Welcome to the forum btw. did you test the turn-on already?

 

[thericanballer 10+ year member]

MAKE SURE YOU RCAS ARE GOOD ONES OR YOUR HEADUNIT ISNT BAD AT THE RCA PLUGS. that happened to me and i spent soooo much money sending it to the companies and it was just my rca plugs

 

[Kangaroux 5,000+ posts]

MAKE SURE YOU RCAS ARE GOOD ONES OR YOUR HEADUNIT ISNT BAD AT THE RCA PLUGS. that happened to me and i spent soooo much money sending it to the companies and it was just my rca plugs

doesn't sound like an rca problem.

OP, make sure you have a solid ground. where the amp was grounded any paint should have been sanded away to expose bare metal.

 

[Bjaffry]

thanks for the welcome, and thanks for all of your guys's help already.

What do you mean test the turn on? I am sort of new to the car audio game, but been wrenching on cars for years.

thericanballer, the amp still won't turn on without any RCA cables attached.

 

[Kangaroux 5,000+ posts]

thanks for the welcome, and thanks for all of your guys's help already.
What do you mean test the turn on? I am sort of new to the car audio game, but been wrenching on cars for years.

thericanballer, the amp still won't turn on without any RCA cables attached.

there are 3 power wires going to your amp. 1 is a 12v constant which is coming from your bat, 1 is a remote turn on lead which comes from your head unit (it's very thin, and typically blue) and your ground wire

it doesnt sound like the remote turn on is the problem. without it, the amp wouldn't turn on at all. i'd check for a solid ground, and make sure that all connections are tight.

 

[IonRL205 10+ year member]

He means test your remote wire connection. Also have you tried grounding the amp somewhere else?

 

[Heeltoeclutch 10+ year member]

You should have a power wire, ground wire, and turn-on wire going to your amp (a smaller-gauge wire going to your HU - when the HU sends current through this wire it tells the amp to turn on). Pretty much all amps have this... unless it has an RCA-sensing thing like an old Blaupunkt I had. do you have an input for a remote turn-on on the the amp?

edit: im wondering if it is in fact an RCA-sensing amp... when you installed it did you run a remote wire to the amp?

double edit: nvm i think...

 

[Heeltoeclutch 10+ year member]

If this is your amp

it should look like this on the side?

is there a wire coming from the RMT on the right?

 

[Louisiana_CRX 5,000+ posts]

being a BMW you think it was quality made