Boss Super OverDrive SD-1 
 
10 Tonex Models
 
Genre-defining BOSS overdrive sound
Unique asymmetrical clipping circuit produces tube-like overdrive characteristics
Mild-to-moderate drive tones with focused midrange and tight low end
Ideal for use with clean and slightly driven amps
Also works great for bringing tightness and definition to high-gain amp tones
Stacks well with boost, overdrive, and distortion pedals
 
Get your Tonex Anniversary Pedal - Here