Well not really a mod, but an adjustment. I got a used one of these off **** that was beat up. I liked it and figured I'd get a new one and sell off the old. The new one was lame compared to the old one so I sent it back. Then I broke a piece inside the old one I kept and chorus and flanger stopped working. Crap. So I bid on a couple on **** and of course won both. One was a newer model (like the one I bought new) with a matte finish on it it and the other was a very clean older model like my broken one with a slick shiney finish on it. So I figured, 'cool, I got another old one, it'll sound great and back the newer one goes on ****.' But they both sounded lame.
Both gave me a volume boost even with the Input Gain control on zero. Both seemed to add treble to my signal making it overly bright and tingy on the thin strings (I was playing P90
Les Paul for tests). So I'm pretty bummed now looking at the broken one and kicking myself for f-ing around with it. Then I remembered seeing a bunch of trimpots on the circuit board of my broken one when I had it open. Hmm.
I opened both my new purchased pedals and looked to see where their trimpots were set compared to my first pedal. Well, the newer (matte finish) model has different trimpots than the earlier models so I didn't bother with it. It's trimpots are adjusted by an
Allen wrench where the other two adjust with a flathead screwdriver. There were some differences in all of the trimpots between my good sounding first pedal and the newly aquired pedal. I set the newly aquired pedal to match the broken pedal and I was back in soft water chorus again.
Lesson: These pedals can be tweaked if you're not happy with their sound.
Here are the trimpot settings of my pedal currently if you want to experiment with your box.
