Dismiss Notice

Psst... Ready to join TalkBass and start posting, make new friends, sell your gear, and more?  Register your free account in 30 seconds.

Is my preamp bad?

Discussion in 'Pickups & Electronics [BG]' started by NelsonNelson, Nov 14, 2012.

  1. NelsonNelson


    Sep 25, 2011
    I have a Carvin 12 year old bass and it has the lowest output ever, almost whisper quiet. Volume doesn't effect the difference either on the bass or anything. YES I have trouble shot the cable and amp with my other bass. It's this Carvin. I think the preamp is shot.

    Any help?
  2. NelsonNelson


    Sep 25, 2011
    edited. No one has any experience with this?
  3. Is the battery good?
  4. WoodyG3


    May 6, 2003
    Colorado, USA
    What output do you have in passive mode? Any difference when you pan from one pickup to the other? Have you double checked the jack input? It could be as simple as a dirty volume pot.
  5. NelsonNelson


    Sep 25, 2011
    Sorry been slammed. Replaced battery works now. Weird because I've never had a battery malfunction to where the bass was doing that.

    Now I still have the 60 cycle hum with the mids...that goes away when I touch the strings. I didn't mess with the wiring just replaced wire for wire the jack as it was going bad. So do I just need to junk this preamp and get a new one?
  6. NelsonNelson


    Sep 25, 2011
    I have a 60 cycle hum in the mids...need help.