Radio Design Labs ST-VP2 Automatic Ducking Module

Product Description

The RADIO DESIGN LABS ST-VP2 is an automatic ducking module designed for audio signal processing applications. Ducking modules automatically reduce the level of background audio — such as music or ambient sound — when a priority signal, such as a paging or announcement feed, becomes active. The ST-VP2 handles this attenuation automatically, eliminating the need for manual fader adjustments during live events, paging scenarios, or broadcast-style installations. It is typically installed by audio-visual integrators, commercial sound contractors, and systems technicians working in distributed audio environments.

The ST-VP2 is suited for commercial and institutional audio installations where automatic priority mixing is required. Typical applications include background music systems with intercom or paging overlays, house-of-worship sound systems, retail environments, and multi-zone commercial audio distribution. The module fits into signal-chain racks or infrastructure where automatic level management between program and priority audio sources is needed.

Key Features

• Automatic ducking reduces background audio level when a priority signal is detected
• Eliminates manual gain riding during paging or announcement events
• Designed for integration into commercial distributed audio signal chains
• Sold as a single unit for straightforward rack or system integration

Compatibility

Designed as an OEM-style replacement or integration component for commercial audio signal processing systems requiring automatic ducking functionality.

Installation Notes

Installation is typically performed by licensed audio-visual integrators or commercial sound contractors. Power down the signal chain before connecting or disconnecting the module. Follow applicable local and national electrical codes when routing low-voltage audio signal wiring. Consult the manufacturer datasheet for terminal assignments and gain configuration before commissioning.