EHX BassBalls/Rocktron Heart Attack Modifications

Thunderscreech · #1 03-30-2009, 05:25 PM

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...

Wasted Bassist · #2 03-30-2009, 05:49 PM

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.

Doublefunk · #3 03-30-2009, 07:58 PM

Heres an idea of what can be done:

Though technically this is a clone.

Wasted Bassist · #4 03-30-2009, 08:04 PM

Good god. What is that atrocity. I'd just like an expression control on the sensitivity.

twisty4678 · #5 03-30-2009, 08:09 PM

Bassballs has two more internal pots for each of the filters. I've seen some people put external knobs to control them.

RONQUITO · #6 03-30-2009, 08:10 PM

I have a BassBalls Nano, i want it turned into that ^ monstrosity...just for kicks.

McHaven · #7 03-30-2009, 08:20 PM

I want. I can't tell what have those things do, but I want it.

Gashaponcito · #8 03-30-2009, 08:33 PM

how makes that monster!!! I need it!!

Doublefunk · #9 03-31-2009, 10:19 AM

http://members.tripod.com/urekarm/synth/fuzzyballs.html
I think the schematics are here.

**TheMutt** · #10 03-31-2009, 02:01 PM

Good lord! If someone wants to make em, I'd be glad to buy one!

fightthepower · #11 03-31-2009, 04:35 PM

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.

XXL · #12 04-01-2009, 11:52 AM

So the Rocktron Heart Attack is basically a BassBalls clone? Same sounds?

Thunderscreech · #13 10-12-2009, 01:19 PM

Quote:

Originally Posted by XXL

So the Rocktron Heart Attack is basically a BassBalls clone? Same sounds?

Yes. Pretty much. it does lack the trimpots inside I think.

Bassmike62 · #14 10-12-2009, 02:45 PM

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...

thx