M-VAVE ABY Channel Switch

M-VAVE ABY Channel Switch, brand new comes with box. The ABY is applicable for the instrument, amplifier, speaker(be sure to use speaker cable) and pedalboard.The design of mode-choosing switch, which enable A, B channels transfer from respectively to simultaneously.In both the two modes, ABY can be used in both positive and negative directions, the signal path can flow from A/B to C, or from C to A/B.