RDL DB-TPA1A 3.5W Decora Audio Power Amplifier

Designed for distributed paging, background music, and security‑monitoring installations, the Radio Design Labs DB-TPA1A Decora audio power amplifier converts a single twisted‑pair audio feed into dependable local speaker power. This pro amplifier accepts stereo audio and 24V DC over an RJ45 Format‑A connection and sums left/right to a mono, Class D amplified output — delivering 3.5W RMS into 8Ω (6.5W into 4Ω) for clear, consistent coverage.

The DB-TPA1A streamlines deployment in surveillance and monitoring environments by eliminating separate power runs and simplifying wiring. A front-panel VCA offers scratch-free, long-life level adjustment for field‑serviceable control, and setting the level to minimum engages a sleep mode to conserve energy. Outputs terminate on a detachable terminal block for secure speaker connections and easy maintenance. Ideal for security, surveillance, and building monitoring zones where space, reliability, and clean system wiring matter. Add the DB-TPA1A to your next campus or enterprise security paging network for a compact, efficient audio endpoint.

• Compact Decora form factor simplifies installation in wall-plate locations for paging and security applications
• Receives audio and 24V DC over a single RJ45 twisted-pair connection for fast, clean system integration
• Efficient Class D amplifier delivers reliable 3.5W RMS into 8Ω (6.5W into 4Ω) while minimizing heat and power draw
• Front-panel VCA provides scratch-free, long-life volume control for precise level setting in monitoring and surveillance zones
• Auto sleep mode at minimum level reduces energy use on idle zones, lowering operating costs for distributed systems
• Drives standard 4Ω or 8Ω speakers via detachable terminal block for secure, service-friendly connections