The MT-2 is the metal pedal that followed the HM-2. It is one of the best selling Boss pedals of all time. The Metal Zone produces a distortion that is a bit smoother than the HM-2 and HM-3. In addition to the Level and Dist controls, it has got a 3 band equalizer. The middle is a sweepable parametric eq that gives complete control over the MT-2’s tone.