The LS-4 is a small-footprint line selector allowing you to connect a stereo source and send it to up to three other devices. The same source signal can even be sent to all four destinations simultaneously, or any combination thereof. It’s a fantastic, inexpensive option for passive monitor switching, headphone distribution, parallel effects routing, and more. Its 100% passive design imparts zero tone color on your signal. A flexible ground lift is available internally per channel.