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Frequency response of Cry Baby wah-wah pedal

The frequency response tester is used to measure the response of a Dunlop Cry Baby wah-wah pedal, model GCB 95. The response was measured in three positions, heel-down, toe-down and approximately in the middle. The data from the three results files was combined and plotted in LibreOffice Calc.

Cry Baby frequency response plot