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SD preamp STC-3M4

Discussion in 'Pickups & Electronics [BG]' started by robert43, Apr 4, 2009.

  1. robert43


    Jun 5, 2007
    Hi I bought s/ hand a SD STC-3M4 preamp ( MM Stingray )
    The when I turn the treble pot it dosent seem to make any diffrence . The bass & midi work fine.
    I have tried a diffrent pot same resistance 100K. but same results.
    I have aslo noticed when I pull out the volume switch ( is for slap ) there seem s to be stuff all difrence &. I have adjusted the 2 little trim pots on the unitin every combos & still bugger all.
    Any ideas like changing the pot on the treble to say 10 K ?

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