More low end to Chunk Chunk

[jase]

Hi everyone/anyone, is there a way to get some more bass out of this pedal.
I love the way it sounds, it just needs more Ooomph to my ears.

Cheers

[nzCdog]

Had a fiddle with a tonestack calculator... You could try a lower value for C12... try 100n.  (Even down to 22n)  Let us know if that works!

[jase]

Cheers, I'll try that when I get some time. I like the  tone of the pedal and it's very articulate.
I tune very low ( A# Standard ) and don't won't to compromise the definitiion, a lot of pedals just sound muddy
but the chunk is nice, just needs a little kick in the butt is all!

[jase]

Is there a way to switch between several different values, like stock and two others?
How would I wire a switch for this, and could someone do a sketch so my simple mind can wrap itself
around it!
Many thanks in advance for any help.

Jase

[Scruffie]

On (Off) On DPDT (you can use an SPDT but this is probably easier for me to explain).

Middle 2 lugs, stick wires to your board with the lowest value cap you intend to use.

Other 2 sides stick whatever caps you want to add in parallel with it so say in the middle you have... 22nF, one side you could have 33nF for a combined value of 55nF and the other side a 100nF for 122nF.

Make sense?

[jase]

I'm a bit confused still, any chance of a diagram?
Sorry for being so daft....

[nzCdog]

Scruffie's idea is cool... you should hopefully get 3 bass response options from 'stock' to 'thunder' if you wired it like this...  Let us know if this works  

*edit: you can experiment with capacitor values, these are my suggestions*

[jase]

Brilliant! Thanks for the clarification, your diagram was just what I needed.

[jase]

Should it replace C11? That one seems to line up to the bass pot more....

[nzCdog]

C12 

[jase]

Ok, I've ordered the parts. I'll let you know how it goes when I've got it installed.
Thanks again for all he help.

[nzCdog]

looking forward to hear how you got along

[Thomas_H]

Hi, I just happened to build a chunk chunk as well and trying it out I was also missing some low end.

I just tried the mentioned mod and just wanted to tell that it works great !

I was using  the switch with the following values: (because thats what I had lying around  ) )
168n
33n
47n

I also think that you could lower it down to 22nF - but thats a matter of taste anyhow.
I was very impressed by the fact that if did not harm the overall sound of the pedal.

Now looking to put it in a nice enclosure.

[nzCdog]

Cool... thanks for the feedback Thomas!
Make sure you post a build report when you get done

[Bored]

Hi, I just happened to build a chunk chunk as well and trying it out I was also missing some low end.

I just tried the mentioned mod and just wanted to tell that it works great !

I was using  the switch with the following values: (because thats what I had lying around  ) )
168n
33n
47n

I also think that you could lower it down to 22nF - but thats a matter of taste anyhow.
I was very impressed by the fact that if did not harm the overall sound of the pedal.

Now looking to put it in a nice enclosure.

Was it cap 11 (feeds 2 of the Bass pot lugs) or the above mentioned C12 (feeding the center lug of the Mid pot)