The TSD-ZDC is a universal impedance divider/combiner for passively summing or splitting of mic or line level signals. Features include four unbalanced 10K and four balanced 150Ω inputs/outputs that may be passively split or combined in any arrangement. Typical applications include passive summation of multiple 150Ω mics or stereo 10ΩK sources and passive splitting of 150Ω or 10KΩ input sources to multiple outputs.

To ease contractor use and installation the TSD-ZDC includes individual ground connectors for each input/output. The unit's compact footprint allows for easy standalone mounting or an optional rack mount adapter may be used to facilitate up to (4) TSD devices.