Great TS style overdrive. Fixes the lpss of lows with the 100hz knobs (+/- 12db) but what surprised me most was the 500hz knobs. When playing chords this gives so much more gnarl (is rhat a word) to the sound. I use this OD as first in the row followed by a TRex Mudhoney Danish for real distortion and a Way Huge Supa Lead in a light setting as a boost or as always on when no OD/TS is used in front of my tube amp which is on the edge of breakup. Final combo (for now) but you never know what will happen in the future. This Green Rhino is a keeper for sure.