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handon11 
Member - Posts: 23
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Joined: September 16, 2010
Location: Missouri, United States
Posted: March 13, 2013 at 5:06 PM / IP Logged  
First, here is my setup:
2x Boston SE65 (6.5)
2x Boston S95 (6x9)
1x JBL GTA604
1x Alpine MRP-M500
1x Alpine Type R 12"
Pioneer DEH P3900MP
Okay, so I've had this setup for probably 2 years with all of my gains at the same level, and everything tuned the same. My JBL amp has a rear channel that is bad, so all four speakers are wired to the front 2 channels. Just a coiple days ago, I took my door panels off to add some more sound deadening to the doors, and yesterday my JBL amp started going into protect mode randomly. It started while I was cruising through town, driving back home, and the Alpine amp and sub were working fine. It would go into protect mode for a few seconds, turn off he music minus the sub, and then come back on for a few seconds, and repeat.
I regrounded my speaker amp, and it's working slightly better now, but it had been grounded the original way for abot 2 years without any problems. I used an ohmmeter and checked all the speakers and they're all in great shape. I d
handon11 
Member - Posts: 23
Member spacespace
Joined: September 16, 2010
Location: Missouri, United States
Posted: March 13, 2013 at 5:07 PM / IP Logged  
I don't think I'm missing anything. Could my amp just be going bad?
DYohn 
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Joined: April 22, 2003
Location: Arizona, United States
Posted: March 13, 2013 at 5:44 PM / IP Logged  
It could be going bad, but more likely you damaged a speaker wire or connection when you took the door panels off - or you grounded out a speaker with the foil backing on the sound deadening material (if it has that.) Take them off again and see what you did.
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handon11 
Member - Posts: 23
Member spacespace
Joined: September 16, 2010
Location: Missouri, United States
Posted: March 13, 2013 at 6:19 PM / IP Logged  
Hmm.. It isn't that kind with the foil, and I didn't touch the speakers when I messed with it all, but it's worth checking out.
soundnsecurity 
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Joined: November 10, 2008
Location: Louisiana, United States
Posted: March 14, 2013 at 8:31 AM / IP Logged  
if the speaker terminals are very close to the metal door skin or something else made of metal then vibration might be causing the terminals to touch ground when you play or while you drive.

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