Pigtronix Envelope Phaser (EP-1) mod

[bandus]

Hello!

Anyone knows how to perform the MARV mod on the Pigtronix EP-1? Any source would be fine!

Is it complicated or why i can't find any info on this mod?

Thanks in advance!

[Kipper4]

Welcome Bandus.

I did a quick search it turns out it could be an up/down mod.

Have you a schematic to work with?

Also why not check out the search function. Top right of the page

[nocentelli]

I think the Marv mod is a combined phase/envelope wah-ish sound: The up/down is another mod that pigtronix used to offer, which is documented at fsb

[Kipper4]

Ok gottya.
Effects in series or parallel?

[nocentelli]

No idea. I owned the EP-1 a while ago, and looked into modding it for up/down (just requires an extra diode or two - documented over at fsb) and came across talk of the Marv mod, but no-one on the internet seems to know what it is, other than the description from the (since removed) mods page on the Pigtronix website.