Lell Heavy Metal DEQ-700
Schematic avaiable HERE The switch appears to a on/off selector for the distortion section so it can be used as a stand alone eq pedal as well.
EQ
Lell EX-9 Exciter
Schematic avaiable HERE Note that pot lug numbers isn’t labelled in the schematic. And the pot tapers is unknown but my best guess is that they are linear. This one seems to be a treble booster/light overdrive with a tonestack somewhat related to a parametric eq.
DOD Death Metal Eq
Got a request for this one a while ago. Looks like a more versitale alternative to Boss HM2 eq. original has transistor gyrators but I went with op amps for less space and smaller parts count. Here is demo video by MTK comparing them through a Revv G4 clone.
