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bad amp?


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key67 
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Posted: September 06, 2014 at 2:35 PM / IP Logged  
This is my first car amp install, years of hooking up home audio. It does not matter how I put my inputs or outputs I get no channel separation. I even hooked up one speaker to the pos front and pos rear and was getting both channels thru that speaker. Its a used Eclipse EA3422 4/3/2 amp, cant find any docs for it. Did the seller rip me off?
key67 
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Posted: September 06, 2014 at 2:36 PM / IP Logged  
btw, my goal is two speakers, no sub's
i am an idiot 
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Joined: September 21, 2006
Location: Louisiana, United States
Posted: September 06, 2014 at 2:58 PM / IP Logged  
Are you using a Pioneer head unit?
key67 
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Posted: September 06, 2014 at 3:33 PM / IP Logged  
no, My headunit is a bluetooth and volume board, checks out fine on my home and portable systems.
http://store.sure-electronics.com/audio/aa-ab41132
http://store.sure-electronics.com/audio/aa-ab41134
(can get a bit of a better price on the auction site)
i am an idiot 
Platinum - Posts: 13,666
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Posted: September 07, 2014 at 8:20 AM / IP Logged  
Plug only one rca cable into the amp. Do all speakers play now?
key67 
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Posted: September 07, 2014 at 8:36 AM / IP Logged  
yup
i am an idiot 
Platinum - Posts: 13,666
Platinum spaceThis member consistently provides reliable informationspace
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Location: Louisiana, United States
Posted: September 07, 2014 at 9:32 AM / IP Logged  
Take a piece of 18 gauge or so wire. Ground one end to wherever you have the amp grounded. Strip a few inches off the other end and wrap it around the shield of the RCA cable. Does this change anything?
Your home system has ground on the shield of the rca. Your car amplifier is depending on the ground for the rca cable to be provided by your deck. We are not familiar with your device, it may not have ground on the RCAs.
key67 
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Posted: September 07, 2014 at 9:48 AM / IP Logged  
no diff, just did a check on the bluetooth and vol boards, both ground the rca to vehical.
i am an idiot 
Platinum - Posts: 13,666
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Joined: September 21, 2006
Location: Louisiana, United States
Posted: September 07, 2014 at 3:09 PM / IP Logged  
It is looking like you have a bad amp.
key67 
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Posted: September 07, 2014 at 4:12 PM / IP Logged  
par the course of my luck, now to figure if its repairable. Ill use it in the meantime, no probs with it other than that.
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