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GK amp gets HOT! Less than 4 ohms?

Discussion in 'Amps [BG]' started by Mad Mux, Mar 10, 2014.


  1. Mad Mux

    Mad Mux

    Apr 12, 2013
    My drummer recently "acquired" an older GK 115 which is loaded with I think the original EVM-15B....it's so old and beat most of the text is worn off the backplate so I can't read the resistance, but the GK literature says 8ohms, and EV website says 8ohms for the EVM-15B. My multimeter sucks, it says 0 ohms, I know that's not right....

    So when I play with this cab and another Eminence 8ohm-loaded cab, my poor little GK400RB gets super hot, like almost too hot to touch! That's not normal, cause last night I played the same room at same volume with two different 8ohm cabs, and the amp barely got warm at all.

    Any ideas? Could this actually be a 4ohm cab and I'm overdriving my amp? In any case, I've stopped using the cab 'cause I LOVE LOVE LOVE my 400RB and don't want to risk burning it up.
     
  2. BassmanPaul

    BassmanPaul Gold Supporting Member

    Aug 25, 2007
    Toronto Ontario Canada
    Depending on the range you have selected on your multimeter zero Ω is what you can expect. it's actual DC resistance should be around 5Ω for an 8Ω driver. if your amp is complaining by overheating I suggest you don't use the cabinet in question unil you find out what exactly is residing in there.
     
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