The vocal harmonizer on the 2k can be turned on or off using either the foot switch or by merely pressing the "vocal harmony" button located on the lower, right side of the keyboard. You can also defeat the reverb by pressing the "talk" buttom which is next to the harmony button.
Cheers,
Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)