Originally Posted by Knettgummi
The Moogerfooger filter doesn't really do that -- it leaves you with just the lowpassed signal. Sounds like what you're after is a crossover filter. Something like this
DING<DING<DING - we have a winner! Was looking at the controls, that is exactly what I was hoping for.
Now I have to go check out Bongomania's suggestions. Thank you gents!!! Awesome.
Review of the XMR is here [sfx] X&M crossover and mix pedal review, with samples
SFX X&M is pretty close to the Rolls, a bit fewer controls to tweak. http://www.sfxsound.co.uk/xm/
The FEA DB-CL is more of a compressor but it is frequency controlled. Close but no cigar on that one.