The AtlasIED WTSD-ML provides remote mic/line audio input to any audio system with a balanced line input. The WTSD-ML audio wall plate requires a PWBOB analog interface box and external power supply to operate (both included). The WTSD-ML can be installed up to 330' (100m) from the amplifier, providing flexible placement options. The WTSD-ML uses commercial-grade microphone preamps featuring ultra-low noise performance, high-gain output, mic or line level selection, phantom power, 20 dB pad, 120Hz high-pass filter and rotary detented level control. Installation meets low voltage standards and is straightforward, with the wall plate fitting into a standard single gang electrical box or low voltage ring and requiring only 1.5" (38mm) of clearance depth. The AtlasIED WTSD proprietary low-voltage bus is designed to support a single wall plate or multiple WTSD devices. Up to (3) WTSD devices can be daisy-chained on the same bus, with audio from each device summed together while maintaining independent control. The WTSD-ML includes an onboard signal limiter to manage the level placed on the summed bus, with adjustable settings from -3 dB to 21 dB. The WTSD faceplate provides signal and limiter status indicators.