Mr. Black Twin Lazers Effect PedalTake a trip to the summit of the great modern phase shifters you're sure to find this one when you get there. The Mr. Black Twin Lazers has quite a bit of phasing power on tap, to say the least. Two independent phase shifters one four stage and one six stage occupy this pedal's compact casing. Easily interactive between three precise parameter controls, the Twin Lazers comes alive in either four or six stage phaser modes. The Twin Lazers enhances the