Problem with sub woofer cutting out.

[Mikeaudio]

My subs work fine and sound great. But around 2/3 of the way up volume they begin to cut out! I've checked all my wiring, grounds, impedance, rms watts, voltage, connections and checked for damage to the voice coils. I can't find the problem. Help please. Thanks.

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[CrossoverOre 10+ year member]

a little more detail on the hardware you are playing with would help.

 

[Boomin_tahoe 5,000+ posts]

It could be a number of things. But yes, it's like a car almost to diagnose the problem, more info needed and a pic or two would help.

 

[Kingbudman]

If it only happens when you turn it up then most likely something is loose and vibrating. Check all the wires behind the head unit also.

I had a similar problem with wires behind my head unit being loose from the last owners install.

 

[Mikeaudio]

My subs are 10" pioneers. Model TS-SW1041D. I have them in parallel from the amp (alpine mrp m500, 500wrms @ 2ohm) using #12awg . I have a 2 farad cap (planet audio) feeding the amp. I have already upped the ground wires to #4 awg (battery - to fender, to engine block, to chassis) also upped the positive to the alternator with #4 awg. My subs are 4 ohms each, and I just verified it today with my meter. I have the cap ground and amp ground to steel that is free of paint and I also sanded the steel and cleaned it. Today's swapped out the agm 60A fuse with a 40A maxifuse. I will uploadsome pics asap. Thank you for your help already.

 

[Boomin_tahoe 5,000+ posts]

Ok going from a 60A fuse to a 40A amp fuse.....is a no go. That will limit your wattage.

2nd thing...get rid of that friggin' cap!

 

[Mikeaudio]

I'll take the cap out tomorrow and try to show some pictures. The thing is that it started cutting out before the cap. Another note. I took out the subs today and saw that some smoke was coming out of the box. I'm starting to believe that one of my subs is going out. I already ordered new ones. Boomin_tahoe, I have the maxifuse after the cap.

 

[Boomin_tahoe 5,000+ posts]

Oh ok.

Smoke from the sub enclosure no good.....typically a blown sub. test them out see if they are causing the problem/issue.

 

[Mikeaudio]

Here area couple of pictures. I didn't remove the cap, to tired from work.

 

[Mikeaudio]

I found problem fellas, thanks for your help. I was checking all my wiring today and as I tugged on all of them to check for a loose connection the remote wire for the amp came out. So I swapped it for a new blue one.

 

[Mikeaudio]

Dammit! I'm starting to have the SAME problem again! How is this happening? Can anyone give some more troubleshooting tips.

 

[Boomin_tahoe 5,000+ posts]

So your subs are fine? And the amp keeps cutting out when the volume is turned up?

 

[Mikeaudio]

On my amp the light never turns off. It doesn't turn red or any color, it stays blue. I just installed my new subs and they are cutting out the same way my old ones did.

 

[Boomin_tahoe 5,000+ posts]

I'm suspecting your HU now. Because that turns on, so does the amp.

 

[Mikeaudio]

What do you think it would be in the HU.