Home › Forums › Help/Technical Questions › Metal Muff power problem?

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  • July 15, 2010 at 8:44 pm #80504
    element22ag
    Member

    Hello there, I’m a total noob when it comes to this stuff, but I just got a second hand Metal Muff w/ top boost, and when I plug it into my Dunlop DC Power Brick, it won’t turn on. I was told that the Metal Muff needs a 9.6 volt 200mA adapter. On the Dunlop website, it says the Brick has a 1,000 mA output capacity. And I have it plugged into the 9v jack on the brick. Also according to the website (and printed on top of the brick), it says the barrel is positive and the center is negative. The inside of the pedal looks pristine, no damage anywhere, nothing rattling about, and it works with a battery. Does this mean there is some kind of damage to the power input jack on the MM? By the way, this pedal is pretty sick so far! Thanks for any feedback anyone.

    July 15, 2010 at 9:40 pm #110255
    Maiden Metal Muff
    Member

    Total coincidence I’ve got a metal muff, and literally an hour ago, in a similar noob act I used the incorrect power supply, EH pedals like the metal muff have reverse polarity I used a 1 spot without the converter and the light came on but no sound, the pedal works when I use my marshall supply however im worried there could be some damage, im guessing the dunlop brick has the opposite polarity to that of the M muff so it would not work.

    July 15, 2010 at 10:19 pm #110258
    Mr.Grim
    Member

    to both of you: i dont see any reason why the Brick shouldent work for the effect unit, so perhaps its a problem with your power jack, and i have and use 3 1Spot adapters on my board and i never have an issue with my Metal Muff, it should be the same polarity.

    July 15, 2010 at 11:35 pm #110259
    Maiden Metal Muff
    Member
    Quote:
    to both of you: i dont see any reason why the Brick shouldent work for the effect unit, so perhaps its a problem with your power jack, and i have and use 3 1Spot adapters on my board and i never have an issue with my Metal Muff, it should be the same polarity.

    So you have the 1spot connected up straight into the pedal without a converter? that’s weird becasue the polarity symbol on the 1spot is opposite to that of the metal muff. The power jack on my muff works fine because I use it with my marshall adaptor when I use it alone.

    July 16, 2010 at 12:00 am #110260
    Mr.Grim
    Member

    yeah i have the full version of the metal muff with top boost, and i use it with no problems at all, pedal shows center negative like the 1Spot

    July 16, 2010 at 12:04 am #110261
    Maiden Metal Muff
    Member
    Quote:
    yeah i have the full version of the metal muff with top boost, and i use it with no problems at all, pedal shows center negative like the 1Spot

    sorry I was wrong about the polarity, I was rying to use my 1 spot with my full version Metal muff, Doctor q, Small stone, Marshall Supervibe, Boss DD7, however no sound was coming, and a little amount of shock was coming off the pedals, Im a pretty confused, any ideas about what is wrong?

    July 16, 2010 at 3:30 pm #110282
    SanquiFlerb
    Member

    if you’re daysichaining pedals with different polarity, it might get fucked up. That also can happen if the power supply doesn’t have isolated grounds. Try using just the 1spot with the mmtb, with no other pedals conected. If that doesn’t work, your pedal might be fried.

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