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Darkglass Microtubes 900 + DG410C Shuts down on stage

Discussion in 'Amps and Cabs [BG]' started by x-y-z, Dec 27, 2017.

  1. (thanks to those who already replied to this question on an earlier thread)

    I recently got a new Darkglass Microtubes 900 + DG410C - and have "tried" to use it twice at recent outdoor gigs. Both times the amp sounded perfect during setup but as soon as we started the first song, the amp shut itself off - then came back - then off again. Ridiculous. Had to go to a back up rig. I don't have a power conditioner but have been told it might be because of poor power supply - however, guitar amp, PA and lights all worked fine. Just mine failed. As a weekend gigging band, we are usually supplied a typical extension cord from a house or in a club, and that's it - but even when we play indoor shows, we won't get much better power than that. Of course at home it works perfectly at any volume I want. I've asked for a replacement 900 but really nervous to trust it again. Any thoughts?
  2. BlueTalon

    BlueTalon Happy Cynic Supporting Member

    Mar 20, 2011
    Eastern Washington
    Endorsing Artist: Turnstyle Switch
    I had a situation this last summer at an outdoor gig where everything worked fine as we were setting up, but once we started playing, we lost our (LED) lights and mixer. Apparently the long power lead and our load created a voltage drop, and our equipment had different minimum power requirements and thresholds for operating. I'm not sure if a power conditioner would have helped that or not. It would be worth asking the Darkglass people how sensitive their stuff is to power fluctuations or low voltages.
  3. Darkglass support said it has a protection mode at 90V - but I don't know what that is or what power we were being fed...all I know is it happened twice and that's one too many for me unfortunately, because when working, it's amazing.
  4. BlueTalon

    BlueTalon Happy Cynic Supporting Member

    Mar 20, 2011
    Eastern Washington
    Endorsing Artist: Turnstyle Switch
    "Protection mode" means it shuts down, rather than running the risk of damaging any of the circuitry. But if that was it, it seems to be that other stuff would be dropping out too, because 90 volts is pretty darn low.
  5. ArtechnikA

    ArtechnikA I endorsed a check once... Gold Supporting Member

    Feb 24, 2013
    Here's what I would do:
    Can you help here ?
    staccatogrowl likes this.
  6. agedhorse

    agedhorse Supporting Member Commercial User

    Feb 12, 2006
    Davis, CA (USA)
    Development Engineer-Mesa, Product Support-Genz Benz
    Each piece of equipment will have its own protection thresholds (if they have protection) I wouldn't use any of my equipment on power lower than 90V myself.
    staccatogrowl likes this.
  7. Bim1959


    Apr 15, 2009
    Naples Florida
    Sales and electronic tech/piano tech: England Music Center - Clinton IA - now closed
    Ive gone thru the same problems myself back when I was playing keyboards (they shut down from undervoltage). I picked up a TrippLite LC1800 power conditioner/stabilizer. It corrects under and over voltages in the 89V-147V range and gives a good 120V output. Its saved my ass quite a few times. Now I use it with my bass rigs whenever I play shows where Im unsure of what kind of power Im going to be getting.
    x-y-z and David A. Davis like this.
  8. Darkglass

    Darkglass Gold Supporting Member Commercial User

    Dec 10, 2008
    Helsinki, Finland
    Douglas Castro, Founder: darkglass.com
    Hey @x-y-z first of all sorry for the inconvenience! It must be incredibly frustrating to have your amp shut down mid gig, my apologies for the inconvenience.

    We have seen some issues whenever power drops to 100VAC, all though the ICEPower module was rated for 80VAC.
    We actually brought this up to them and found a solution, we have since tested the modules at much lower voltages full blast without any shutdowns!

    I'm sending you a PM so we can find the best and fastest way to fix it.

    Any other questions, feel free to let me know!

    Kind regards,
    Last edited: Dec 28, 2017
    Charlzm, Conkal, BassmanPaul and 20 others like this.
  9. BassmanPaul

    BassmanPaul Inactive

    Nice Douglas nice! :D
    staccatogrowl likes this.
  10. Ryan L.

    Ryan L. Moderator Staff Member Supporting Member

    Aug 7, 2000
    West Fargo, ND
    Another example of great customer service.
  11. I agree - Doug and the other people at Darkglass have all been super cool. I don't mean to bash them at all - I love their products - just think there may be a glitch in my amp or crappy electrical supply in my recent gigs!
    staccatogrowl and Darkglass like this.
  12. zerran12


    Jul 20, 2013
    Guitar Department Manager, Sam Ash Music
    @Darkglass I own the same amp and love it but have had the same problems. It shut off three different times at my gig last night and have had it do the same thing at a few different venues. Please help, thank you
  13. Darkglass

    Darkglass Gold Supporting Member Commercial User

    Dec 10, 2008
    Helsinki, Finland
    Douglas Castro, Founder: darkglass.com
    Hi guys!

    Sorry to hear about your issues, please send us your location and product serial number to [email protected].

    I am quite sure your issues will be solved by replacing the ICEPower module (we have had a few faulty units in an earlier batch).

    Please email us so we can get you guys sorted out.

    Kind regards,

    Edit: Sorry, I had a typo on the support email. I posted this yesterday after a 18 hour workday. I will refrain from posting at 3AM from now on :).
    Last edited: Apr 10, 2018
  14. Doug - I follow you on Instagram - your workouts are impressive! You're allowed a typo after all that weight you're picking up!
  15. Darkglass

    Darkglass Gold Supporting Member Commercial User

    Dec 10, 2008
    Helsinki, Finland
    Douglas Castro, Founder: darkglass.com
    Haha thanks!
  16. I just found this thread and sent an e-mail to support. I had one of the first batches of Darkglass heads to make it to the US and I played my first full volume gigs this weekend with it and it was cutting out on me repeatedly at stage volume. I had to back off the overdrive section and power section to get it to quit doing it. I have more gigs coming up and will see what support says and proceed from there. I am unemployed with no backup, so this is a crap situation for me. Doug, I appreciate what you are doing and being available to answer questions for us. Hopefully my problem is something that is fixable.
  17. kpc


    Apr 6, 2011
    Was there a generator or a direct line to outside current? Might be a low voltage thing.
  18. I don't think it was a low voltage thing. I frequent the club and I have never seen anyone have an issue with power there. It also cleared up by lowering input gain and master volume. My settings were not crazy extreme either. Mostly cuts in the EQ, and the B3K overdrive section had the drive at max but the blend is quite low as well as the level. It seemed like the input signal was throwing the power section into a fault protection mode or something. That said, this head has monster tone and I get nothing but compliments. I love my Darkglass tone.
  19. Darkglass

    Darkglass Gold Supporting Member Commercial User

    Dec 10, 2008
    Helsinki, Finland
    Douglas Castro, Founder: darkglass.com
    Hi! We have seen some ICEPowers not work correctly when mains voltage nears 100VAC (despite them being specified for 85VAC minimum) this was addressed in later revisions and the fix is relatively easy (switching the ice power module).

    Please send us an email to [email protected] specifying the issue, your location and serial number so we can take a look.

    Kind regards,
    staccatogrowl likes this.
  20. Thanks for the reply. I sent off an e-mail but forgot to give my location. :/ Keep pushing the boundaries, I love what you have done for bass players tonal needs. I may have talked some people into Darkglass equipment at the show this weekend, I had a lot of people ask me what I was playing through. We have a small fellowship of Darkglass users in the metal scene here in Austin Texas and we keep spreading the word. :)
    Last edited: May 7, 2018
    staccatogrowl likes this.
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