Home › Forums › Help/Technical Questions › AT Pro35 -> Micro POG / Noise

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  • July 8, 2020 at 7:59 pm #86345
    funnygudy
    Member

    Hi,

    I play the hurdy gurdy, and I’m using a Audio-technica Pro35 mike (250 ohm impedance) with the AT8538 power module plugged into a small ZT acoustic combo. With a Boss PH-2 pedal, no problem, works just fine.
    If I replace the PH-2 with a micro POG, I get a heavy, buzzing noise as soon as I connect the output to the amp.

    I’m using a 9.6 AC/DC EHX power supply.
    tried different cables : not better.

    Any idea ?

    –Ch.

    July 9, 2020 at 12:48 pm #126249
    EHX STAFF
    Keymaster

    Its a ground loop
    Make sure the are all plugged into the same source and use ground lifter adapters if you are in the USA

    July 13, 2020 at 3:55 pm #126270
    funnygudy
    Member

    Hi,

    i have inseerted and isolator between the output of the micro-POG and the ZT lunchbox : same noise.
    Tried to put the isolator between the ZT and the micro-POG input, not better.
    My isolator is an ART DTI, supposed to be a solution to this kind of problems.

    Thank you for your help anyway,

    –Ch.

    July 13, 2020 at 8:21 pm #126272
    EHX STAFF
    Keymaster

    Did you ground lift the ac of the amp?

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