The Pi2 is an active phase reversal circuit mounted on a mini-toggle switch, and is used in guitars with two or more EMG Pickups. Wired in series with one of the pickups, The Pi2 produces true "out of phase" sound by reversing the phase of the pickup. The active method of phase reversing is superior because it maintains the quietness of an EMG equipped instrument. It requires the same amount of space as a conventional phase switch, and only four solder connections are necessary. Along with the Pi2, mounting hardware and complete instructions are included to make installation easy.
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