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audiofanaticz

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  23. How do i know if my dd1+ is broke?????

    in D'Amore Engineering - High Quality Car Audio Installation Tools & Accessories

    Posted

    If its working on the deck then its not broke, it has no way to distinguish what it is hooked up too (ie a deck, rca, or amp).
    Most likely may have subwoofer volume or SLA turned up too high, both will cause distortion if set too high.

    IIRC neither the SLA or Subwoofer volume be distortion free when either are turned all the way up (even though the headunit volume is distortion free, those other 2 need to be manually adjusted).


    So your best to find the max headunit volume with those other 2 settings at 0, then turn SLA up until you see distortion (usually around volume 2-4). Then do the same for subwoofer volume that goes from -10db to 0db or something like that.

     

    Re-Read the manual on page 12 as well.

    10. Play track 1 on test CD
    11. Set the headunit’s bass, treble, EQ’s, crossovers to flat
    12. Set the headunit’s volume to the maximum undistorted volume setting that was measured with the DD-1+ previously.
    13. The unit should display 40Hz Detect, along with the voltage reading of the signal.
    14. Slowly turn up the amplifier’s gain setting until the Distortion LED illuminates continuously.  Leave Gain Setting such that Distortion LED remains on, then PRESS "READ" button.
    15. Change track to 3 on test CD, DD-1+ will show current gain overlap setting.  
    16. Adjust the gain control on the amplifier until the desired gain overlap setting is achived.

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