RDL STM-DA3 Microphone Level Distribution Amplifier, 1x3

Deliver clean, reliable microphone feeds to multiple destinations without compromise. The Radio Design Labs STM-DA3 microphone level distribution amplifier (1x3) is engineered for professional audio, broadcast, security and surveillance installations where noise-free, isolated mic signals are essential. With a 1200 Ω balanced input and studio-quality low-noise circuitry, the STM-DA3 preserves microphone dynamics while preventing loading or crosstalk between outputs. Built-in 24V phantom power supports condenser mics, and the dual-LED VU meter makes gain setting quick and accurate on-site. The module maintains audio integrity across a wide 30 Hz–20 kHz bandwidth and tolerates heavy loading or shorts on any output without affecting the others—ideal for monitoring, recording, paging, and video surveillance audio distribution. Compact, adhesive-mountable construction simplifies installation in racks, cameras, or control rooms. If you need a robust mic splitter for security, monitoring, broadcast or pro AV systems, the RDL STM-DA3 delivers isolated, studio-grade performance—add it to your next system design or order today to streamline microphone distribution.

• Split one mic feed to three isolated outputs for flexible installations and easy integration into broadcast, A/V or security systems
• True electrical and audio isolation prevents crosstalk and load-induced level changes so monitoring and surveillance channels remain clean
• Studio-quality, low-noise preamp architecture ensures transparent sound for recording, live sound, and critical monitoring applications
• Built-in 24V phantom power and a 1200 Ω balanced input support dynamic and condenser microphones without additional gear
• Dual-LED VU meter for quick, accurate gain setting on-site—no external test equipment required
• Compact stick-on design installs discretely in racks, consoles or surveillance enclosures for space-constrained deployments