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223 Views 7 Replies Latest reply: Apr 12, 2013 4:43 PM by rockstardvnt RSS
grittar Just Startin'
grittar
8 posts since
Jun 6, 2008
Currently Being Moderated

Jan 27, 2012 8:39 AM

DT50 Noise

I just bought a DT50 and it has started to make odd noises.  I have swapped the pre-amp tubes and tried a different power source.  It does this with or wihout the HD500 linked to it and with nothing plugged in.  It is louder when the HD500 is connected, as is the underlying hum.  I have attached a sound file of it.  Please let me know if I need to return it ASAP.

 

Thanks

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Tags: noise, dt50
  • Nick_Mattocks Best of the Best
    Nick_Mattocks
    9,065 posts since
    Mar 26, 2007
    Currently Being Moderated
    Jan 27, 2012 1:19 PM (in response to grittar)
    Re: DT50 Noise

    Hi

     

    I can hear the oscillation you're hearing in the MP3.   That could be due to a bad tube or it could be due to something else in the solid state part of the amp.  I suspect a tube issue, and if it were my amp I would swap the two 12AX7 tubes for other known-to-be-good tubes to see if that resolves the issue.

     

    I'd also recommend reflashing the amp's Flash Memory, however, TBH this sounds to me like a hardware issue than software.

     

    As the amp is brand new, I appreciate that you shouldn't have to mess about in terms of changing tubes, but it might be your quickest route to satisfaction without physically having the hassle of returning the amp, but the bottom line is that the amp should not be making those noises, so given you have a time limit on returning the amp, it's your call.

     

    Nick

    • grittar Just Startin'
      grittar
      8 posts since
      Jun 6, 2008
      Currently Being Moderated
      Jan 27, 2012 9:10 AM (in response to Nick_Mattocks)
      Re: DT50 Noise

      I have already swapped the 12ax7's with known good tubes.  I should have noted in my post that I have also updated the flash.  I also think it is a hardware issue.  My biggest concern after reading these forums is that the next one is going to be the same.

  • grittar Just Startin'
    grittar
    8 posts since
    Jun 6, 2008
    Currently Being Moderated
    Jan 27, 2012 11:18 AM (in response to grittar)
    Re: DT50 Noise

    Is there a way to speak to someone by phone at Line 6?

    • Nick_Mattocks Best of the Best
      Nick_Mattocks
      9,065 posts since
      Mar 26, 2007
      Currently Being Moderated
      Jan 27, 2012 1:18 PM (in response to grittar)
      Re: DT50 Noise

      Yes - depending on where you are located, you hve a choice of Line 6 US or Line 6 Europe.  Here's the contact details:

       

      Line 6 - North America

      Line 6, Inc.
      26580 Agoura Road
      Calabasas, CA 91302-1921

      Main Phone#: (818) 575-3600
      Main Fax#: (818) 575-3601

      Line 6 - Europe

      Line 6, Inc.
      The POD
      Clifton House
      Butler's Leap
      Rugby, Warwickshire
      United Kingdom, CV21 3RQ

      Telefone: +44 (0) 1788 566 566
      Fax: +44 (0) 1788 566 529

       

       

      Nick

    • Line6Tony Line 6 Support
      Line6Tony
      1,917 posts since
      Jan 16, 2007
      Currently Being Moderated
      Jan 30, 2012 10:46 AM (in response to grittar)
      Re: DT50 Noise

      Grittar,

       

      I'm sorry to see this happen to your amp, but only a technician at an authorized service center can diagnose and repair this issue. They can be found at http://line6.com/service_centers/. It has a one year warranty; you'd provide a copy of your receipt to the service center for warranty service.

      • rockstardvnt Just Startin'
        rockstardvnt
        2 posts since
        Dec 18, 39099
        Currently Being Moderated
        Apr 12, 2013 4:43 PM (in response to Line6Tony)
        Re: DT50 Noise

        This is a very consistant problem from all I see on the forums. I have same issue and am currently dealing with it due to me not wanting to go without an amp 2-3 weeks after I just spent so much money on the dt50 212. another issue is sudden jumps in volume. Ive seen numerous posts about this issue before it started to happen on mine. and sure enough, It began happenning to mine. The amp I have is almost 9 months old, but has been in my road case for the first 6 months I had it, only getting played on for minutes at a time. I immediately noticed sounds that didnt belong. was told to update firmware, did. no change. any way, Im writing this to ask if it could be a fix that will come by way of a new update, or is it the amps in general? I really dont want to have my amp in the shop for so long, which is my only option, but hoping to hear that the problems have been acknowledged and there is a fix for it... Thanx for ur time and any helpful advise.

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