The Yamaha SU4000 Emergency Changeover Unit delivers dependable power redundancy for Yamaha PM4000 mixing systems. Designed to interface with two PM4000 power supply units, it continuously monitors the active PSU and automatically switches to the standby unit if a fault occurs, keeping your console powered without interruption. Housed in a rugged 2U, 19-inch rackmount chassis, the SU4000 is built for the demands of touring, theatre and fixed installations where reliability is critical. Clear front‑panel status indicators allow quick visual confirmation of operating state, while professional connectors ensure straightforward, robust integration with existing PM4000 infrastructure. Engineered as a purpose-built safeguard for legacy PM4000 desks, it helps protect live events and broadcast workflows from unexpected downtime with simple, fail‑safe operation. Please note: the pictured 1 m multipin cable is not included. Ideal for rental companies, venues and engineers who need assured continuity, the SU4000 provides a practical, confidence‑inspiring layer of resilience for mission‑critical audio environments.
Includes
- Yamaha SU4000 Emergency Changeover Unit for PM4000 PSUs
STAGE22.5.100.70