RDL ST-DA3 Line Level Distribution Amplifier, 1x3

Distribute a single line‑level audio source reliably across multiple zones with the Radio Design Labs ST-DA3 distribution amplifier. This compact pro amplifier is built for security, surveillance and pro monitoring systems that demand low noise and clean, wideband audio. The ST-DA3 drives up to three balanced or unbalanced outputs and handles high or low impedance loads while providing adjustable gain and bridging capability for flexible local distribution. Its wideband, low‑distortion circuitry (10 Hz–100 kHz) maintains intelligibility for voice paging, microphone feeds and recorded playback. Designed with RDL’s SupplyFlex power input, the module operates from floating 24 Vdc or bipolar DC for straightforward integration into existing power architectures. Ideal for CCTV audio, access control voice monitoring, PA zones and distributed AV installations, the ST-DA3 brings professional audio distribution where you need it without adding noise or complexity. Add one to your rack or field enclosure to simplify signal routing and improve overall system clarity — contact sales or order today to upgrade your monitoring and surveillance audio paths.

• Distribute one line‑level source to up to three destinations with consistent, low‑noise audio for surveillance, paging and monitoring
• Flexible installation: local placement with bridging, adjustable gain and support for balanced or unbalanced, high‑ or low‑impedance loads
• Wideband, low‑distortion circuitry (10 Hz–100 kHz) preserves clarity for critical security and pro audio applications
• SupplyFlex power input accepts 24 Vdc or bipolar DC for easy integration into existing power systems
• Rugged US‑made design from Radio Design Labs ensures reliable, long‑term performance in demanding AV and security environments