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EHX BassBalls/Rocktron Heart Attack Modifications

Discussion in 'Effects [BG]' started by Thunderscreech, Mar 30, 2009.

  1. So, I was thinking about it today, and aside from the sensitivity knob and distortion switch, these pedals are pretty straight forward.

    But, just out of idle curiousness, I wonder what mods can be done to these pedals? A filter adjustment? Switchable Exp. pedal control of sweep?

    Of course, on the other hand, if it ain't broke...
  2. Wasted Bassist

    Wasted Bassist

    Nov 11, 2008
    Fargo, ND
    I think if someone could come up with a way to make the sensitivity exp pedal controllable, I'd definately buy another one to do it on.
  3. Doublefunk


    Sep 11, 2008
    Heres an idea of what can be done:


    Though technically this is a clone.
  4. Wasted Bassist

    Wasted Bassist

    Nov 11, 2008
    Fargo, ND
    Good god. What is that atrocity. I'd just like an expression control on the sensitivity.
  5. Bassballs has two more internal pots for each of the filters. I've seen some people put external knobs to control them.


    Dec 27, 2007
    I have a BassBalls Nano, i want it turned into that ^ monstrosity...just for kicks.
  7. McHaven


    Mar 1, 2005
    I want. I can't tell what have those things do, but I want it.
  8. Chris Ramlar

    Chris Ramlar

    Feb 8, 2006
    how makes that monster!!! I need it!!
  9. Doublefunk


    Sep 11, 2008
  10. TheMutt

    TheMutt Guest

    Apr 28, 2007
    Good lord! If someone wants to make em, I'd be glad to buy one!
  11. fightthepower


    Jan 7, 2008
    San Diego
    I wonder if changing one of the filters in the schem to a lowpass would have an adverse affect on the sound. A friend of mine is about to graduate with his EE degree and I've been trying to come up with something for the first build.
  12. XXL

    XXL Supporting Member

    Jun 14, 2007
    So the Rocktron Heart Attack is basically a BassBalls clone? Same sounds?
  13. Yes. Pretty much. it does lack the trimpots inside I think.
  14. Bassmike62

    Bassmike62 Punch'n Ooomph provider Supporting Member

    Just got the bassballs and looking to have it modified (I don't want to touch it with a drill, I'll kill it...).

    If you guys know anyone in Montreal that mods those pedals, let me know...


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