Boss OD-20 Overdrive

The OD-20 Drive Zone uses advanced COSM® technology to model the sound of classic overdrive/distortion pedals, as well as creating new sounds of its own. There are 22 models to choose from, plus new "Attack Shape" and "Heavy Octave" parameters for dialing in subtle nuances or extreme tones. You can even switch amp channels remotely using the OD-20's Amp Control jack.

COSM Overdrive/Distortion Modeling pedal with 22 killer stompbox models including 6 all-new tones
Models classic and modern overdrive/distortion pedals like BOSS OD-1 and MT-2, plus many other vintage and boutique pedals
Attack Shape control adjusts overdrive's response dynamics to your playing
Heavy Octave parameter creates sounds one octave below notes played on the 4th string, 4th fret and lower-great for heavy, single string riffs!
4 User memories for storing custom settings; also has Manual mode for realtime changes
Line output with Amp Simulator; also works as headphone output
Amp Control jack for switching amp channels from the OD-20