Mackie Big Knob Passive

Mackie Big Knob Passive, Monitor Controller, For up to two monitor pairs and two stereo sources, Passive +4 dB signal path without separate power supply unit, Large volume control, Switch for mute, dim, mono, monitor and signal source, 2 Stereo line inputs: 6.3 mm jack balanced, 2 Stereo monitor outputs: 6.3 mm jack balanced, Steel casing ...