Whirlwind MLTSP1X3 4-Channel Passive Mic Splitter 1RU Rack Panel

The Whirlwind MLTSP1X3 is designed for audio engineers who need reliable, low-noise mic-level signal distribution across multiple consoles or recording destinations without introducing ground loops or interference. Housed in a single rack unit, it delivers four independent channels of splitting, each with one direct output and two transformer-isolated outputs — giving front-of-house, monitor, and broadcast engineers their own discrete feed from a single microphone source.

This unit is particularly well-suited for broadcast and remote production scenarios where a video truck or remote recording rig needs a clean, isolated feed from the stage. The passive design eliminates the need for external power, simplifying rack configurations in fly-date rigs, mobile trucks, and installed broadcast facilities. Front-panel ground lift switches on each isolated output give the engineer precise control over ground-related hum without pulling the rack or recabling.

Compared to active splitters, the MLTSP1X3's passive transformer-isolated architecture avoids introducing gain stages or phantom power complications, making it a dependable choice when signal integrity and simplicity are non-negotiable. Front-panel female XLR inputs and rear-panel male XLR outputs allow clean, organized cabling in touring racks and installed broadcast bays alike.