the Marshall Shredmaster

Personal revelation the other day: the marshall shredmaster is one of the best pedals ever. I was visiting my friend Dan Wiley, nerding out over distortion pedals, DS-1 mods as usual. I was testing them all out, he insisted on me hearing his favorite: marshall shredmaster clone. It doesnt really compare to RAT/DS-1/higain-tubescreamer/muff/anything. Its got its own sound and then the contour knob really makes it beautiful. The contour knob some kind of filter or midrange equalizer obviously but every position is a sweet spot. Sounds to me like changing a microphone position. You could probably get some real good use tweaking that contour knob while mixing for effect.

Some background on the marshall shredmaster,

Jonny Greenwood uses a marshall shredmaster, yes.
but Kevin Shields does not! This forum style quote below was posted in TOHEREKNOWSWEB, an unofficial MBV website. User evoluzione claims to be Kevin Shields's guitar tech for the Isn't Anything and Loveless tours.

just wanted to clear that up. Kevin Shields used the marshall guv'nor which looks exactly like the shredmaster, but isn't.

The original shredmaster is fairly overpriced($200) likely because of Jonny Greenwood and alleged Kevin Shields use, but there are several makers offering clones out there for about half what you would pay for the original.

try and find the MXR Classic Distortion

MXR has a guitarcenter exclusive pedal for $29. There's no info about it on the guitarcenter or dunlop websites. I'd already have one with my birthday money(thanks grandma and grandpa!) but its really hard to find, its not even available at most GC locations.

EDIT. Ive been to 3 guitarcenters now and none of them had it. I even had this $10 gift certificate they mailed me, it expired. I hate hate hate that place, all music stores that carry new stuff. Everyone uses their stuff anyway.

suprisingly musical use of a ring modulator

This electro harmonix blog upload of a long lost promotional flexi disc demonstrating the frequency analyzer sounds really good. The company is about to release a smaller version of that same pedal.