Does This Happen to your Aggie Pre?

Discussion in 'Amps and Cabs [BG]' started by Steven Green, Sep 15, 2002.

  1. Steven Green

    Steven Green

    Jul 25, 2001
    Pacific NW
    So I had a gig 2 nights ago and about a half hour into the set, I noticed that my tone seemed to lose a little low end and get a warm, snarly sound to it--like if I had cranked my preamp on my DB 680. I've heard of similar things happening with the SWR IOD. Anyway, the extra gain I seemed to have was causing my speakers so sound a little stressed out (farty)...

    Any ideas guys? I don't think my speakers are damaged, sounds like my tubes just got hotter or something. I dunno though, so that's why I'm apostin'. Thanks!
  2. jokerjkny


    Jan 19, 2002
    NY / NJ / PA
    try swapping out the 12AX7 tube. could be signs of an inconsistent tube.
  3. Hugh Jazz

    Hugh Jazz

    Sep 13, 2001
    Atlanta, GA
    Dying battery in the bass?
  4. CaptainWally

    CaptainWally Supporting Member

    Oct 21, 2000
    Sandy Eggo, CA
    I've got the 659. I think these tubes just wander.

    Enjoy the surprise!
  5. john turner

    john turner You don't want to do that. Trust me. Staff Member Administrator

    Mar 14, 2000
    atlanta ga
    i've never had that happen. might be a failing preamp tube, like jokerjkny said.
  6. Steven Green

    Steven Green

    Jul 25, 2001
    Pacific NW
    Oh damn that avatar is funny JT!:D

    I know it's not a battery...I've got a passive bass. I'll try swapping some tubes around. Thanks for the replies!
  7. jokerjkny


    Jan 19, 2002
    NY / NJ / PA
    remember to swap each, one at a time, playing each time you go. kinda obvious, but just so you know.