RDL RU-ASX4DR Remote Controlled Stereo Audio Selector with VCA 4x1

Optimize audio routing and level control in control rooms, surveillance suites, and AV installations with the Radio Design Labs RU-ASX4DR Pro Audio Mixers module. This remote-controlled 4x1 stereo audio selector combines flexible source selection with a built-in stereo VCA, giving operators precise output control and a 96 dB attenuation range in 0.5 dB steps for exacting level matching. Designed for professionals, the RU-ASX4DR accepts balanced or unbalanced inputs and delivers a single, clean stereo output across a 10 Hz–20 kHz bandwidth. Multiple remote locations can switch sources and adjust levels, while noiseless zero-crossing steps and per-channel gain trim preserve audio integrity for security, surveillance, monitoring, broadcast, and conference applications. Rear-panel detachable terminals simplify installation and integration with existing mixers, recorders, and OEM control systems. Add the RU-ASX4DR to your pro audio toolkit to streamline signal management in critical monitoring environments—contact our sales team to specify or order.

• Centralize audio source selection and level control for monitoring and security rooms with a single, remote-controlled unit
• Precise VCA output with 96 dB attenuation in 0.5 dB steps for consistent, noise-free level matching across feeds
• Remote control from multiple locations and flexible rear-panel control options for easy integration into existing security and AV systems
• Supports four stereo inputs to one stereo output with balanced or unbalanced I/O, simplifying connection to mixers, recorders, and surveillance systems
• Noiseless zero-crossing switching and individual gain trim ensure clean, professional audio for surveillance, broadcast, and conferencing
• Installer-friendly detachable rear terminals and 10 Hz–20 kHz audio bandwidth for reliable performance in pro audio and monitoring applications