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Speaker Popping

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sub_squoch

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Jan 5, 2016
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Hertz 165.1 running front channels and ddb3/st25 parallel on rear channels of 800.4. Alpine double din HU. When I push mute or bring the volume to zero there is a pop in the left front speaker - I do not hear it in any other speakers. Amp was grounded at the trees. Moved ground to distribution block and also direct to battery with the same results. Tried a 4v2 amp and still seem to have the pop but it's quieter. Thoughts/suggestions?

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Have you tried swapping speakers from left to right and see if the sound travels with it?
 
Nocage said:
Have you tried swapping speakers from left to right and see if the sound travels with it?
Click to expand...
Yes. Stays in left. I was initially grounded at the trees. I then tried to run a ground back to my distribution block and the pop remained. I then tried to run a ground back to the battery and the pop remained. So that's why I say I don't believe it's the ground. I tried different RCAs. I tried running from the rear out on the head unit - pop remains so I don't believe it's the HU. I also tried a 4v2 amp in place of the 800.4 - seeing as its a smaller amp, I did have to bring the sens up to about 1/2 but then also heard the pop with that amp. I'm at a loss....

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Make sure your RCA plugs are NOT touching each other or any metal parts. I had a similar issue. I wrapped each RCA connection in 3 layers of electrical tape to insulate them... problem was solved.

It's worth a shot...I was surprised myself

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Spazz said:
Make sure your RCA plugs are NOT touching each other or any metal parts. I had a similar issue. I wrapped each RCA connection in 3 layers of electrical tape to insulate them... problem was solved.

It's worth a shot...I was surprised myself

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Yea I tried that too - I've tried everything!! Only thing I haven't tried is an in line ground loop isolator which I'm going to try next. I have the pop when I hook up the amp in my bag too, which has completely separate wiring so aside from the isolator I have no idea what else to do!!

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Where is your deck grounded? The amp is most likely amplifying this.... start at the radio and get a good ground there.

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Check your wires from the amp to the speakers... make sure there are no compromised areas of insulation.... all wiring ... start with the left front...

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Spazz said:
Check your wires from the amp to the speakers... make sure there are no compromised areas of insulation.... all wiring ... start with the left front...

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Deck is an alpine double din plug n play from biketronics so it's grounded through the bikes wiring system. I hooked up a different amp to the wiring in my bags, so all different wiring (ground, power, speaker wiring, and rca all different), also using different speakers, and I still have the pop. I originally had the amp grounded at the trees, then tried at my distribution block and also direct to the battery and I still have the pop..I think it's a ground loop issue because the head unit and amp are grounded at different places, but I'm not sure how to fix that...

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Try running a secondary ground from the radio back to the battery. The ground loop could be the issue

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Spazz said:
Try running a secondary ground from the radio back to the battery. The ground loop could be the issue

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From the HU you mean? The issue I have with that is the Alpine from biketronics comes with a plastic sleeve over the metal housing so there is no access to the metal housing to ground it!! I'm fighting a losing battle here!!!!

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Well that sucks... if you run the deck without the amp.. does it still pop? Worth a shot... could have an issue with the deck itself

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Spazz said:
Well that sucks... if you run the deck without the amp.. does it still pop? Worth a shot... could have an issue with the deck itself

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Ya know....thats one thing I didn't even think of in all of this...imma hafta try that....to be continued!! Thanks for the idea!!

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sub_squoch said:
Ya know....thats one thing I didn't even think of in all of this...imma hafta try that....to be continued!! Thanks for the idea!!

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Remember... the amp will amplify the issue if it's in the deck... so the pop will be much quieter when directly wired without the amp

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Spazz said:
Remember... the amp will amplify the issue if it's in the deck... so the pop will be much quieter when directly wired without the amp

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Got it thanks bud!

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Just FYI: was a ground loop issue - used ground loop isolators and the pop is gone

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