Small dents in my speaker

Discussion in 'Amps and Cabs [BG]' started by PhilGordon, Jul 7, 2013.

  1. I was wondering if I should be worried about these three small dents in my speaker cone. I have a hartke hydrive 410and the top left speaker has 3 small dents in it. Is this something I should worry about?
  2. Can't see the dents from here?
  3. synaesthesia


    Apr 13, 2004
    I guess you are referring to the dust cap, i.e. the domed centre? The cone itself is not usually prone to dents, but tearing. If it is the dust cap, you can usually press it back to shape, or use a vacuum cleaner as a suction tool, or replace the dust cap altogether.
  4. BassmanPaul

    BassmanPaul Inactive

    +1 A picture is worth a thousand words. :)
  5. ImageUploadedByTalkBass1373225435.871987.jpg ImageUploadedByTalkBass1373225446.943064.jpg
  6. JimmyM

    JimmyM Supporting Member

    Apr 11, 2005
    Apopka, FL
    Endorsing: Yamaha, Ampeg, Line 6, EMG
    That's a weird speaker injury. Do you mind telling us the story there? Shouldn't have an effect on sound unless it opens up a hole, though.
  7. I have only had this cab for about 2 months played it live 3 times. Still sounds great though
  8. They don't "look" like they will cause any misalignment and I would leave them be. I also wonder how they got there?
    Might want to pull that speaker so you can look for something behind causing it?
  9. Baird6869

    Baird6869 Supporting Member


    Definately looks like something caused it from inside.
  10. BassmanPaul

    BassmanPaul Inactive

    Looks like a kid was enjoying himself with a pen or pencil.
  11. I haven't seen anything like it before. It seems like no one else has either
  12. will33


    May 22, 2006

    Whenever something defies logical explanation, I suspect kids.

    Hint: Teenagers most certainly qualify as kids....perhaps even more so than younger children.
  13. No kids for me or near my amp.
  14. Weird thing is that the dents appear to be convex. So they must have been made from the back. Very strange.
  15. flatfender

    flatfender Ad eundum quo nemo ante iit

    Maybe something loose inside the cabinet hitting the back of the speaker when you're moving it? Screw or bolt perhaps but I would think anything metal would get stuck to the speaker magnet.
  16. Have you pulled the grille and speaker to see if there is anything loose in the cab?
  17. will33


    May 22, 2006
    Hard to see on the phone but if the dents are pushed outward, there is almost certainly something loose inside the cab. Possibly a T-nut fell loose from a speaker mounting bolt?
  18. wcriley


    Apr 5, 2010
    Western PA
    Not wanting to alarm the OP, but my experience with aluminum dust caps is that dents and crinkles in aluminum can and will lead to tears.
  19. BassmanPaul

    BassmanPaul Inactive

    Indeed they do - it's called fatigue points.
  20. foderaman


    Jun 14, 2005
    You may have a screw or bolt flopping around inside or someone put something in one of the ports and that is bouncing around inside and hit the aluminum on the inside.Move thecab in all positions and see if you hear anything bouncing around.If not it may already be attached to one of the magnets so you may need to remove one at a time to see if that is the problem?