Radio Design Labs STM-DA3 Microphone Distribution Amplifier

Product Description

The RADIO DESIGN LABS STM-DA3 is a microphone distribution amplifier designed to split and distribute a single microphone-level signal to multiple outputs without signal degradation. Units like this are used in professional audio installations where one microphone source must feed several destinations simultaneously, such as mix consoles, recording interfaces, or broadcast equipment. The STM-DA3 is installed by audio-visual technicians and systems integrators working in commercial, broadcast, or performance environments where clean, low-noise signal routing is critical.

The STM-DA3 is suited for fixed installation applications including houses of worship, conference rooms, broadcast facilities, and live sound environments. It is typically rack-mounted or integrated into a signal chain where multiple downstream devices require the same microphone source. Installation is performed by AV integrators or audio engineers during system commissioning or signal-path buildout.

Key Features

• Distributes a single microphone-level input to multiple outputs
• Maintains signal integrity across all output channels
• Designed for fixed professional audio installation environments
• Sold as a single unit (each)

Compatibility

Designed as an OEM-style distribution amplifier for professional microphone-level signal routing in commercial and broadcast audio installations.

Installation Notes

Installation should be performed by a qualified AV technician or audio systems integrator. Power down all connected equipment before making signal connections. Follow applicable local electrical codes and manufacturer wiring guidelines when integrating into a permanent signal rack or distribution system. Avoid routing microphone-level signal cables in parallel with AC power lines to minimize noise interference.