The 29 Pedals - Euna is an input driver that is meant to condition your signal while remaining flexible. This pedal is designed to be used first in a signal chain and replaces the need for a buffer. Three filters help boost and sweeten your tone as needed, plus an effects loop is meant for vintage fuzzes and wahs that don't need a buffer. Power this pedal with 7.5 - 35 Volts of DC or AC.