MACKIE Level Control Sound Speaker Controller Big Knob Passive Domestic Genuine Product & Source/Monitor

A very simple 2 x 2 monitor controller that requires no power supply. You can enjoy music by switching between 2 pairs of speakers and 2 sound sources. Select from 2 stereo sound sources and 2 stereo monitor speakers Inherits the volume control from the original Big Knob Professional mono, mute and DIM switches Sound that is faithful to the original sound