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Used a $70 dollar DAC to remove all unwanted noise form my pc.

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  • Used a $70 dollar DAC to remove all unwanted noise form my pc.

    This matchbox car sized box is the best investment i have made in a while..

    http://cgi.ebay.com/ws/eBayISAPI.dll..._promot_widget

    Before i get flamed for using this just to go back to analog to an amp let me explain.

    By using the optical out on my Audigy sound card i was able to eliminate all HDD noise,buzzing,hiss, or anything else that would interfere with my audio out. the idea is simple im electrically isolating the amp from the computer. This solution is a bit more expensive than getting ground loop isolaters but this had no degredation on sound. It was amazing. The erie silence the car had when i was looking for a song was awsome. I have read some reviews from audiophiles online about this unit and they said they were shocked at the performance vs the size and price. It says 24bit decoding. I cant test this stuff but it sounds amazing. I would say it is better for 2 reasons.
    1. There is absolutley NO background noise
    2. The RCA's are only 6 inches long since i have the unit on my amp.

    1 catch.. the unit has a loud hiss for the 1st 10 seconds until the soundcard boots. (I have the amp set to delay turn on by 10 seconds to solve it)
    -Jack
    2006 Chrysler 300C AWD
    Samsung Galaxy Tab In dash

  • #2
    Hmm this could very possibly be the solution to my problem, I'd thought about it, as I like the idea of electrically isolating the sound card!
    How did you power it, straight from your pc or the car's 12v?
    *ST185 Celica GT-Four Group A Rallye (Alltrac Carlos Sainz edition)*
    http://www.mp3car.com/vbulletin/showthread.php?t=96292

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    • #3
      Originally posted by tooch View Post
      Hmm this could very possibly be the solution to my problem, I'd thought about it, as I like the idea of electrically isolating the sound card!
      How did you power it, straight from your pc or the car's 12v?
      It comes with a ac power adapter and it comes with a battery hookup. I have the power and gnd coming right off the amp
      -Jack
      2006 Chrysler 300C AWD
      Samsung Galaxy Tab In dash

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      • #4
        And this would work with any digital output from a sound card ?
        Not doing carpc anymore

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        • #5
          Originally posted by _dopehead_ View Post
          And this would work with any digital output from a sound card ?
          It does have both coax and optical.. however if you use coax you are not breaking the electrical connection to the amp.
          -Jack
          2006 Chrysler 300C AWD
          Samsung Galaxy Tab In dash

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          • #6
            http://www.mp3car.com/vbulletin/showthread.php?t=97297

            i think the m-audio Co2 is the same exact thing.

            but are you telling me that if I got optical from computer to preamp, and preamp to amp with RCA....thats no good?
            (All done)
            iPad Mini 128GB, RF 600.5 amp, JL12W0V2, 8 Infinity Components

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            • #7
              Originally posted by sdashiki View Post
              http://www.mp3car.com/vbulletin/showthread.php?t=97297

              i think the m-audio Co2 is the same exact thing.

              but are you telling me that if I got optical from computer to preamp, and preamp to amp with RCA....thats no good?
              You should be alright. If you are using optical from the pc to the preamp you should be eliminating all pc noise. As long as somwhere down the line we are using optical to isolate the pc from the amp.
              -Jack
              2006 Chrysler 300C AWD
              Samsung Galaxy Tab In dash

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              • #8
                The "transformer isolated ground" on the Co2 seems a welcome plus as well.
                (All done)
                iPad Mini 128GB, RF 600.5 amp, JL12W0V2, 8 Infinity Components

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                • #9
                  no flaming here. a lot of us go the dac route. I'm going coax to mine though
                  New System in progress:
                  M10k
                  Phaze TD1500 ~> Dynaudio MD130
                  Phaze TD1500 ~> Seas g18rnx/p
                  Zapco Ref 500.1 ~ 12" tc-9
                  Behringer DCX2496 ~ Envision Electronics psu
                  Transflective Xenarc

                  My Car Pc Install
                  My Boat Pc worklog

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