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Static sound from new sound system

Discussion in 'Audio & Video' started by sherrie3000, Feb 10, 2020.

  1. Feb 10, 2020 at 1:00 PM
    #1
    sherrie3000

    sherrie3000 [OP] Member

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    I just got an amp installed and there is a really loud static sound when the speakers are set at 0 and I can hear it in the background of my music until a certain level which it kind of blends in. Once I hit my volume knob to turn “off” the speakers, the static sound goes away but there is a small high frequency sound coming from the speakers. Do you guys know what the problem could be? Bad wires? Poor grounding? I’ve looked everywhere for answers but no definite ones. TIA
     
  2. Feb 10, 2020 at 1:38 PM
    #2
    destin_meeks

    destin_meeks I fix people's crappy stereos

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    Could be any or all of those things

    what amp
    What interface to factory radio
    Who installed it
    What type of wiring
     
  3. Feb 10, 2020 at 5:00 PM
    #3
    Fattypack

    Fattypack Well-Known Member

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    I have that when volume is at 0 not sure if it’s as loud as yours. But it “blends” in after turn it up to 2 on volume. Stock head unit, lc7i and xr901-5 for my mids and highs.
     
  4. Feb 10, 2020 at 5:02 PM
    #4
    JaCado

    JaCado I can see your soul

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  5. Feb 10, 2020 at 5:26 PM
    #5
    dolbytone

    dolbytone Well-Known Member

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    :notsure:
     
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  6. Feb 10, 2020 at 5:40 PM
    #6
    JaCado

    JaCado I can see your soul

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    I missed that...:(
     
  7. Feb 12, 2020 at 10:21 AM
    #7
    sherrie3000

    sherrie3000 [OP] Member

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    I have a lc6i, infinity kappas, kicker amp, and a DB sound all in one sub(getting a JL sub soon) and stock radio. I feel like the gain might be set too high. Also, the speakers pop out of the grill a little is that normal or is that the installers fault? If you touch the grill of the speakers u can feel the kappas bulging out.
     
  8. Feb 12, 2020 at 6:59 PM
    #8
    sherrie3000

    sherrie3000 [OP] Member

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  9. Feb 12, 2020 at 7:22 PM
    #9
    thegerbs

    thegerbs Active Member

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    what converters are used to pull the audio for the rca? they probably need to be grounded
     
  10. Feb 12, 2020 at 7:29 PM
    #10
    sherrie3000

    sherrie3000 [OP] Member

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    If I’m being honest I have no idea, where can I find out? I can look for it in my truck, just let me know where to look and I will.
     
  11. Feb 12, 2020 at 7:37 PM
    #11
    destin_meeks

    destin_meeks I fix people's crappy stereos

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    Gains on the amp are probably too high
    Output levels on the lc6i are probably too high
     
  12. Feb 12, 2020 at 7:38 PM
    #12
    thegerbs

    thegerbs Active Member

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    behind the head unit, i’m assuming you had a shop install?
     
  13. Feb 13, 2020 at 11:51 AM
    #13
    sherrie3000

    sherrie3000 [OP] Member

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    I’ve looked behind the unit and only saw the lc6i, out put was like 3/4 set on all knobs. Maybe I didn’t look good enough but that’s the only box I saw. Still not sure where the amp is. Looked everywhere but the output is really loud.
     
  14. Feb 13, 2020 at 11:55 AM
    #14
    destin_meeks

    destin_meeks I fix people's crappy stereos

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    well ¾ way up on the lc6i is WAY too high. Half way max.

    the amp location will depend on the amp itself. Most likely either under one of the seats, or against the back wall in those cubbies
     
  15. Feb 13, 2020 at 5:33 PM
    #15
    thegerbs

    thegerbs Active Member

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    ahh, yeah you’re not going to have what i’m talking about. i missed the part where you said you had a real eq
     
  16. Feb 14, 2020 at 5:46 PM
    #16
    mbrogz3000

    mbrogz3000 Well-Known Member

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    My vote is that the gain is too high. That audiocontrol DSP can output up to an 8.5 V signal to the amp..the amp gains don’t need turned up at all.

    Regarding the pop noise.. a quality amp will definitely have the pop-kill circuit to prevent the turn-on and turn-off pop that usually happens with class D amps. At most it should only sound like a tiny little muted tap noise or click.
     
    Last edited: Feb 14, 2020

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