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Hartke HA4000 Balanced Out Issue

Discussion in 'Amps and Cabs [BG]' started by brock300, Feb 28, 2013.

  1. brock300


    Feb 28, 2013
    Im a first time poster on this forum, and I hope I am asking this question in the correct area. Here is my question. I am running a Hartke HA4000 amp with an Ampeg B-410HLF. I re-wired my cabinet back into a 4 Ohm setting with new eminence speakers. I am not having any trouble with live sound. My trouble is coming from when I am in the studio or in larger venues where I have to run my balanced out to a board or PA. I am getting a very low static sound through my output. I have tried the ground lift etc and other guitar input jack, but to no avail. I have taken the amp to 2 different amp techs and they say they have pushed the amp through their systems and cant re-create the hum or fuzz. Is there a gounding system in the cab that can cause this problem or is the problem with the Hartke head? I have a huge gig with a national act in 10 days and if I cant get this handled I will have to drop some coin on getting another head. Plz help ASAP! I am playing a 2008 Fender MIJ Jaguar Bass and have went to the extent of changing the jack in the bass as well thinking maybe there was a grounding issue with the guitar but didnt fix the problem. HELP! :rollno:
  2. A shot in the dark : try using one of those old adapters used for plugging three-pronged AC plugs into two-pronged sockets. Sometimes isolating the ground like that can help.
  3. brock300


    Feb 28, 2013
    Never thought of that. I will give it a try. I caved in and bought an Ampeg Portaflex 500
  4. As a diagnostic tool this is reasonable advice. These adapters should never be used as a permanent solution. They are dangerous with a capital D!

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