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Sub making weird noise

Discussion in 'Audio & Video' started by CayucosTacoma, Apr 1, 2012.

  1. Apr 1, 2012 at 3:45 PM
    #1
    CayucosTacoma

    CayucosTacoma [OP] Just think outside the Yota

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    San Luis Obispo/Santa Barbara CA
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    Specs in the Build Thread
    So i have a JVC double din, and a JBL 12 inch sub, a MX3 bass controller, and a 1000 watt amp.

    When i have the car on and have the bass controller know all the way to the right the sub makes a bunch of noise, even if the volume on the head unit is turned all the way down. Sounds like the sub is idleing if that makes sense?

    But idk what it could be i have changed the ground location 3 times! I checked all the RCA connections. so if anyone has any clue what it could be id appreciate the input
     
  2. Apr 1, 2012 at 3:51 PM
    #2
    Yoytoda

    Yoytoda The Little Truck That Could

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    Roland
    Big Bear,CA / Upstate NY(Saratoga)
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    completely stock
    sounds like feedback.

    if your RCA cables are not high quality they could have really crappy shielding.

    does it make the noise with the car off? does it change if you rev the engine?
     
  3. Apr 1, 2012 at 4:00 PM
    #3
    CayucosTacoma

    CayucosTacoma [OP] Just think outside the Yota

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    it does not make the noise when the car is off, and i cant recall. if i have he bass controller know near half way on then there is no noise. but ill check next time i head out
     
  4. Apr 1, 2012 at 6:45 PM
    #4
    Yoytoda

    Yoytoda The Little Truck That Could

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    Roland
    Big Bear,CA / Upstate NY(Saratoga)
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    it is picking up frequency put out by the alternator. i would try higher quality rca if you dont already have good quality. (no scosche crap)

    the best setup (and still cheap) is to get RCA ends and put them on good coax cable.
     
  5. Apr 1, 2012 at 6:53 PM
    #5
    CayucosTacoma

    CayucosTacoma [OP] Just think outside the Yota

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    Hmmm I have some monster cables and some cheaper schoches ones, I guessI'll try and switch em around
     
  6. Apr 1, 2012 at 6:57 PM
    #6
    Yoytoda

    Yoytoda The Little Truck That Could

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    i have $50 monster cables and no hum. The scosche ones i got in a kit, hum like crazy, i cut them up and the shielding was thin foil that was wrapped. braid is much better shielding

    my other vehicles are always rf coax that i get from work. i cut off the BNCs and put RCAs on and they are the best
     
  7. Apr 1, 2012 at 7:01 PM
    #7
    CayucosTacoma

    CayucosTacoma [OP] Just think outside the Yota

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    Ilook try the monsters when I get home
     
  8. Apr 2, 2012 at 10:36 PM
    #8
    Yoytoda

    Yoytoda The Little Truck That Could

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    Any luck?
     
  9. Apr 2, 2012 at 10:43 PM
    #9
    CayucosTacoma

    CayucosTacoma [OP] Just think outside the Yota

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    got side tracked with cb whip, and was moving too. im going to try it out first thing tomorrow morning
     
  10. Apr 3, 2012 at 1:35 PM
    #10
    CayucosTacoma

    CayucosTacoma [OP] Just think outside the Yota

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    no luck, still making same noise
     
  11. Apr 3, 2012 at 3:13 PM
    #11
    CayucosTacoma

    CayucosTacoma [OP] Just think outside the Yota

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    got it fixed, but now only like 3 stations of FM radio are working. any ideas why?
     
  12. Apr 4, 2012 at 8:48 AM
    #12
    Yoytoda

    Yoytoda The Little Truck That Could

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    Did maybe the antenna come unplugged from the back of the deck?
     
  13. Apr 4, 2012 at 10:11 AM
    #13
    CayucosTacoma

    CayucosTacoma [OP] Just think outside the Yota

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    I checked but I'll double check again today
     
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