Amp going into protection mode - The 1947 - Present Chevrolet & GMC Truck Message Board Network

5150 · 10-12-2015, 05:24 PM

I have two amps. One that controls 2 eight inch subs, and 1 that controls 2 6 1/2 inch speakers and 2 6x9 speakers.

I DO NOT have a stereo deck, just RCA's plugged into the amps and then to an 2.5 mm jack that I plug into my phone.

For the last week when I plug my phone in it makes a popping sound and both amps go into protection mode. I got a new phone, but I took my old IPOD out and it did the same thing so it's not the new phone.

Any suggestions?

5150 · 10-16-2015, 10:12 PM

No one?

shawley · 10-17-2015, 01:19 PM

Do you have full 12-14 volts with a multimeter at the amps?

Protection is normally bad ground, bad amp, bad speaker, bad fuse, etc.

If both amps are doing it, check with a meter, make sure you have full 12 volts,

If you do not, you could have a bad fuse that is partially blown.

Could easily also be a bag ground for the amp, loose ground, bad ground from battery to chassis, or a corroded ground.

chuchito · 10-26-2015, 08:53 PM

As Shawley stated, check your grounds first.

How are you turning on your amps? If you have a switch to turn them on, make sure the phone is connected first before turning the amps on. If the amps are on first, you will here that popping sound as the plug goes into the phone jack.

10-12-2015, 05:24 PM	#1
5150 C10 Club Tennessee Join Date: Mar 2003 Location: White House, TN 37188 Posts: 8,281	Amp going into protection mode I have two amps. One that controls 2 eight inch subs, and 1 that controls 2 6 1/2 inch speakers and 2 6x9 speakers. I DO NOT have a stereo deck, just RCA's plugged into the amps and then to an 2.5 mm jack that I plug into my phone. For the last week when I plug my phone in it makes a popping sound and both amps go into protection mode. I got a new phone, but I took my old IPOD out and it did the same thing so it's not the new phone. Any suggestions? __________________ Bryan www.gmtruckshow.com Project "Andes"-Halen's First Truck Project: Patina Burb for he is God’s servant for your good. But if you do wrong, be afraid, for he does not bear the sword in vain. For he is the servant of God, an avenger who carries out God’s wrath on the wrongdoer. Romans 13:4

10-16-2015, 10:12 PM	#2
5150 C10 Club Tennessee Join Date: Mar 2003 Location: White House, TN 37188 Posts: 8,281	Re: Amp going into protection mode No one? __________________ Bryan www.gmtruckshow.com Project "Andes"-Halen's First Truck Project: Patina Burb for he is God’s servant for your good. But if you do wrong, be afraid, for he does not bear the sword in vain. For he is the servant of God, an avenger who carries out God’s wrath on the wrongdoer. Romans 13:4

10-17-2015, 01:19 PM	#3
shawley Registered User Join Date: Oct 2014 Location: Edmonton, AB Posts: 48	Re: Amp going into protection mode Do you have full 12-14 volts with a multimeter at the amps? Protection is normally bad ground, bad amp, bad speaker, bad fuse, etc. If both amps are doing it, check with a meter, make sure you have full 12 volts, If you do not, you could have a bad fuse that is partially blown. Could easily also be a bag ground for the amp, loose ground, bad ground from battery to chassis, or a corroded ground. __________________ My 69' C10 build thread

10-26-2015, 08:53 PM	#4
chuchito Registered User Join Date: Aug 2013 Location: Davenport, Florida Posts: 44	Re: Amp going into protection mode As Shawley stated, check your grounds first. How are you turning on your amps? If you have a switch to turn them on, make sure the phone is connected first before turning the amps on. If the amps are on first, you will here that popping sound as the plug goes into the phone jack.



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