RDL RU-ADA4D Audio Distribtion Amplifier

Deliver reliable, high-fidelity audio to multiple zones with the Radio Design Labs RU-ADA4D Audio Distribution Amplifier — ideal for security, surveillance, paging and pro AV monitoring. This RDL Rack-Up module provides four stereo outputs (or up to eight mono outputs in mono mode) so a single source can feed multiple recorders, speakers or monitoring channels without signal degradation. Built for integrators, the RU-ADA4D features front-panel INPUT GAIN trimmers and dual-LED VU meters for precise level setting, balanced/unbalanced inputs for flexible connectivity, and a maximum input level of 25 dBu to ensure ample headroom. With a wide 10 Hz–165 kHz frequency response, low noise, excellent crosstalk isolation and high common-mode rejection, it preserves intelligibility and fidelity in mission-critical security and monitoring applications. The module powers from 24 VDC and uses rear-panel detachable terminal blocks for secure, serviceable installations. Add the RU-ADA4D to your control room or rack to simplify multi-zone audio distribution — perfect for surveillance audio feeds, paging systems and professional AV deployments.

• Deliver clean, low-noise audio to multiple zones — four stereo outputs or eight mono outputs for flexible distribution in security, paging, and monitoring systems.
• Front-panel INPUT GAIN controls and dual-LED VU meters simplify level matching and ensure consistent audio levels across surveillance and AV feeds.
• Balanced/unbalanced inputs and front/rear level trimming provide reliable headroom and very low distortion for critical pro-audio applications.
• Secure, installation-friendly rear-panel detachable terminal blocks and 24 VDC power make rack-mounted deployment fast and maintenance-friendly.
• Exceptional crosstalk isolation, wide 10 Hz–165 kHz frequency response and high common-mode rejection preserve clarity for voice and high-fidelity monitoring.