shredmaster
Like the Bluesbreaker and the Drivemaster, the Shredmaster is a hard clipping distortion. When compared to the other pedals the Shredmaster has a smoother tone and is darker sounding.
The name suggests that this pedal is only suited to high gain - which it does well, however, it's also great for lower gain tones.
In comparison to the other pedals in this range, the controls on the Shredmaster are slightly different. It still has the typical gain, volume, bass, and treble, but the mid control has been replaced with a contour. Contour still affects the mid-range, but unlike the other pedals it's not interactive with the bass and treble. It's a notch that starts wide and shallow which increases in depth and Q as the contour is increased. Contour can be a very powerful control that can take your sound from a very mid-heavy, all the way to a very scooped aggressive sound.
This pedal has been very popular since its release in the 90s, and has been used by players such as Johnny Greenwood of Radiohead, Kevin Shields of My Bloody Valentine, and even as a bass distortion by Alex James of Blur.