single in&out volume control:the volume of the sinal from the 1/4" TRS jack"+"to the 1/4" TRS Jack "-".

single in&out volume control:the volume of the sinal from the 1/4" TRS jack"+"to the 1/4" TRS Jack "-". is controlled via the adjustment to the 100KA potentionmeter ;the controlling direction can be changed by the K switch.

foot switch