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Question On the FX 150, what frequencies are affected when I select a specific EQ button from the front pannel

Answer
The EQ's affect different frequencies on the FX150 depending on whether or not the 'tone' switch has been engaged.  If the 'Tone' button is set to off, the frequencies affected are: Hi 3.5K Mid 1K Hz Lo 180 Hz   If the 'Tone' button is set to on, the frequencies affected are: Hi 5K Hz Mid 1.5K Hz Lo 350 Hz