Subwoofers doing a heartbeat sound?

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 12-10-2006, 09:42 AM         #1
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cableguy0469 
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Subwoofers doing a heartbeat sound?
 

 
somethings wrong my babies, they did this awhile ago too, When my cd player is on the subs do a constant thump like a heartbeat. Even on pause or mute. What could this be do you think? my wiring set up, Headunit, amp or what?

14 comments for "Subwoofers doing a heartbeat sound?"

 12-10-2006, 11:04 AM         #2
dcole18  OP
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head unit or possibly a grounding issue, if your amp has a low pass filter try plugging a portable CD player or an ipod to the rca's, turn it up, and see if you still hear the heartbeat... also check all your grounds, if you still hear it then you prolly got an amp problem, if you don't hear it when the other input is plugged up to the rca's then you prolly got a fu*ked up head unit...

Edit: it could also be some kind of weird alternator interference... but i doubt it cause the way you are describing it, but if everything leads back to the head unit, before you go throw a few bills on a new head unit, try hooking a ground loop isolator to your rca's...
 12-11-2006, 10:23 AM         #3
renagade281  OP
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more than likely its either sh*tty quality rca cables or a messed up ground sumwhere

i had some rca jacks layin around the house that were made for video only and i put em in my car for the amp and it did the same thing so i went and got some real ones and problem solved
 12-11-2006, 12:12 PM         #4
GhosT  OP
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yeah, like others have already said, check your grounds and replace your rca's. i had the same problem with my rcas, the rca's were actually grounding out, there was a cut in the outside coating
one
GhosT
 12-12-2006, 09:09 AM         #5
druthafoo  OP
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unwire everything and rewire everything more securely like your life depended on it
 12-13-2006, 07:44 AM         #6
cableguy0469  OP
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i had some walmart brand RCAs in my car and there wasnt the hearbeat sound, i replaced them with rockford RCAs and thats when they starte the heartbeat sound.
how would i hook it up to an ipod?
 12-13-2006, 07:48 AM         #7
dcole18  OP
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get one of the cables that goes from a headphone jack to rca plugs, then plug that up to your amp.......
 12 years ago '06        #8
Hit Em' Up 61 heat pts61
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^^ what if he only has an amp to his subs...theres this cable u can get if ure deck supports cd changers, n most do im guessing, then u can run that cable from behind the deck. One end of the cable is a 3.5mm headphone that goes rite into ure ipod...illc if i can find the link.
 12-13-2006, 09:39 AM         #9
dcole18  OP
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as long as his amp has the low pass filter set correctly the amp will only pick up the lows... since he will be hooking the ipod straight into the rca inputs of the amp, he will be bypassing the rca's from the head unit, if his subs work fine with the ipod, then he either has problems with his rca cables from the head unit (most likely) or his head unit is messed up...


Edit: remember when u hook the ipod up to the amp your head unit will need to be on as well so your amp will turn on...
 12 years ago '05        #10
younghova032003 2 heat pts
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I bet your amp just up too high. Try turnin it down.
 12-13-2006, 11:33 AM         #11
dcole18  OP
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^ nah... if its a constant noise then hes got problems, some kind of interference...
 12 years ago '06        #12
Hit Em' Up 61 heat pts61
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o dam i thought u were jus tellin him how 2 hook up an ipod lol i shud have read before my bad...
 12-13-2006, 12:06 PM         #13
dcole18  OP
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its straight man dont worry about it...
 12 years ago '04        #14
yo0123yo 148 heat pts148
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that happened to me before, my amps output channel was blown (i shorted it out) so all my subs would do it make a constant thumping noise, i had to send it to get repaired to amprepaircenter.com
 12 years ago '04        #15
Sty13S 
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this happened to me not long ago at all. it was my fuse. this dude sold me some bullsh*t a.ss fuse and it wasnt givin me full power. im not sayin that is ur problem but once i got a new fuse, it fixed my sh*t?
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