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Thread: Car PC lots of "noise", good USB attached sound?

  1. #21
    MySQL Error soundman98's Avatar
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    try dissconnecting the rca ground. or consider adding a preamp between the carputer and the amp if your gains are extremly high.

    long explanation:

    in my car, i had a issue that was very similar to what you described, i already tried a gli, and it did nothing-- stil alt. whine...

    i tried grounding everything, grounding the rca's acctually increased the noise.

    in the end, adding a preamp corrected it-- basically, i had my amp gains turned up all the way, which allowed the amp to pick up the noise. after i turned down the amp gains, i have not had any issues.

  2. #22
    Newbie
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    im not using a GLI at the moment, the RCA's im using are very high quality, gold, home cinema cables, much thicker and better than the standard car audio stuff, and are run on the other side of the car away from and 12v sources.

    its worth noting that this noise is only present when the car pc is connected, when i connect an mp3 player in place of the car pc, there is no noise...

    i understand your pre amp suggestion, because if my amps are set on a lower setting the noise is almost non-existent (ie the voltage input switch) but the music is way to quiet. do you know of a good pre-amp?

  3. #23
    Variable Bitrate
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    David Navone makes some great quality line drivers.

  4. #24
    MySQL Error soundman98's Avatar
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    i did a review of the jl audio cl-rlc preamps/remote volume knob, and would highly recommend them, but i have also used pheonix gold preamps in a older cd player driven setup and had good luck with those as well.

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