Protect Pulsing, Help Please

[Xero.Limit 10+ year member]

I have a Memphis 16-MCD1000 Amp hooked up to one 12" Memphis M3 it's a dual voice coil and I have a Memphis Line Driver 16-VBF1.

With all that said everything was just working fine then I notice my subs cut out I pulled over to see what was going on and I find my Amp going in and out of protect everytime the bass hits and makes a clicking sound. I've searched the forums for a bit and have tried everything that was said to check. First I removed the Line Driver to eliminate that, the problem still occurred. I checked my power wire by the battery to make sure it was secure and not touching anything & also checked my ground. I live in Florida and it does get very hot during the summer and my amp was also hot so I pulled it inside so it can cool. I didn't notice anything wrong with the amp but I haven't opened it because I don't want to void the warranty if there even is still one.

Any advice would be much appreciated thanks in advance.

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[Xero.Limit 10+ year member]

I opened up the amp and nothing was charred, burnt or smelled funny on the inside.

I tried hooking it back up after letting it sit and no luck. I disconnected the subs but kept the RCA's in and the protect light stopped could it be a problem with my sub?

 

[eutechnyx 10+ year member]

If you disconnected the rcas and it stopped it might be an internal issue or a failing power supply or just a bad ground somewhere.Ill let someone else give you a little insight but that would be my first guess.

 

[Xero.Limit 10+ year member]

I kept the RCA's plugged in and disconnected the sub which is why I'm thinking that might be the issue but I don't know what to look for on the sub. I also already checked the ground it is still secured where I put it months ago.

 

[jpexpc 10+ year member]

Use a DMM and test the coils on your sub.

 

[Xero.Limit 10+ year member]

I figured the problem is with the subs I have some other ones hooked up in there right now.

How would I go about testing the coils on my sub?