The Kramer VS-4X is a high-performance switcher for balanced stereo audio signals on XLR connectors. It switches any one of four stereo signals to a single stereo output.
Kramer Electronics VS-4X Features
Mechanical (Passive) Switching - No power required
Desktop Size - Compact size. Two units can be rack mounted side-by-side in a 2U rack space with the optional RK-4X adapter