Double Muff modding question

[Jono Bolton]

Does anyone know what's going on here? The description on the video just says 'Input Cap Mod' but doesn't say what it's been changed to. Would it just be a simple case of removing one cap and soldering in another?

http://youtu.be/iioVxfTbgEQ

Secondly, is there any difference between the Double Muff and the Nano version? There's a Nano for sale near me for cheap a d I would mind getting it if I can get it to sound like this.

[ahpook]

I presume the capacitor(s) have been switched to allow more bass through the circuit.

[ratman]

The Nano Muff is a single Muff pedal. A Double Muff has two muff circuits, one cascading into the other, when you flip the switch. I wouldn't expect that the newer NM circuit to sound just like the older DM though, as is the case with EHX's other reissues like the QTrons.

[Jono Bolton]

[quote name='ratman' timestamp='1442257932' post='2865599']
The Nano Muff is a single Muff pedal. A Double Muff has two muff circuits, one cascading into the other, when you flip the switch. I wouldn't expect that the newer NM circuit to sound just like the older DM though, as is the case with EHX's other reissues like the QTrons.
[/quote]

There's a Nano version of the Double Muff which is what I was referring to, rather than try to make a Nano Muff sound like a Double Muff. I had read that there wasn't much difference between the DM and the NDM, but wanted to know if anyone had any experience with them.

[Nessy]

Replacing the input capacitor with a larger one would likely let a bit more bass through, however replacing all the coupling caps between each gain stage and the output cap also would probably be a better way of tailoring the circuit for bass guitar. There are other ways to modify it for bass, maybe changing or removing some clipping diodes.

This diagram shows where they are:

[url="http://www.kitrae.net/music/Images_Secret_Music_Page/BIG%20MUFF%20CIRCUIT%20GUIDEsm.jpg"]http://www.kitrae.ne...T%20GUIDEsm.jpg[/url]