Graphtech Ghost Mid/Dark Volume Pot PE-0206-00 The PE-0206-00 is the volume pot for the Acousti-Phonic with an incorporated push/pull switch selects two EQ settings for the acoustic output -- the classic, dark ghost sound one with a boost in the mid range (around 2KHz) The Possibilities are ENDLESS with the Graph Tech GHOST Modular Pickup & Bridge system. Available At Ant Hill Music!