1. Please take 30 seconds to register your free account to remove most ads, post topics, make friends, earn reward points at our store, and more!  
    TalkBass.com has been uniting the low end since 1998.  Join us! :)

Issues with Carvin digital power amp

Discussion in 'Amps and Cabs [BG]' started by magic papa, Jan 10, 2014.

  1. Hi,

    I've got a Carvin DCM 2004LX power amp. Great amp, all the power I will ever need in a lightweight package.

    It's a digital amp with 4 channels. Channel 1 works great. The other 3 don't come out of mute. Interestingly, if I connect to the amp with the software and reload the configuration they start to work OK, so the audio circuits aren't broken.

    If I switch the amp off and back on after that - everything seems fine. But if it's been off for longer (i.e. next day) - the issue reappears.

    Looks like a software/firmware problem. I was wondering if anybody experienced anything similar. My first thought would be to try to re-flash the firmware, but I can't find anything on Carvin site.

    Perhaps there's a config battery backup inside and the battery and got flat or something. I haven't opened it yet.

    I realise it may have to be serviced, but where I live this means months without the amp.

    Any info would be appreciated. Thanks

  2. jeff7bass


    Apr 9, 2009
    Pretty complicated problem. You sound like you're onto something, maybe a tech from Carvin can walk you through a fix. They've been helpful to me, the one time I needed them.
  3. Yeah, pretty funny issue really. If any of the channels were dead quiet I wouldn't have any dilemmas. But I can get them working again by fiddling with configuration. Trouble is I need a computer for that and I don't feel like bringing one to a gig just to kick-start my amp :)

    Emailing Carvin support is probably a good idea. I want to do all I can before sending it for service.