How do you build power redundancy for a show?
Quick answer
Build power redundancy by using dual power supplies on DSP/amplifiers, automatic transfer switches (ATS), and backup generators or battery UPS systems, ensuring seamless failover without audio dropout.
Power redundancy for a live show starts at the system design level. SSOUNDS engineers recommend a dual-feed approach: each critical component (amplifiers, DSP, consoles) should have two independent power sources. For amplifiers and DSP racks, use units with dual hot-swappable power supplies connected to separate mains circuits. An automatic transfer switch (ATS) or UPS bridges the gap during generator or utility failover, preventing any audio interruption.
Beyond hardware, plan for generator backup with sufficient capacity for the entire PA system plus lighting and video. Use power sequencers to avoid inrush current tripping breakers. SSOUNDS systems are designed with redundant power inputs and remote monitoring so engineers can verify power status from FOH. Regular load testing and spare cable/connectors complete the redundancy chain.
For touring, label every circuit and maintain a power patch schedule. SSOUNDS provides detailed power draw charts per cabinet so you can calculate total load accurately. Always have a backup generator or battery UPS for critical control electronics. The goal is zero downtime—any single point of failure should have a backup path.
Key things to consider
- Use amplifiers and DSP with dual, hot-swappable power supplies connected to separate mains feeds.
- Install automatic transfer switches (ATS) and UPS for seamless generator or utility failover.
- Calculate total power draw per circuit using manufacturer specs (e.g., SSOUNDS provides per-cabinet draw).
- Implement remote power monitoring to verify status from FOH or monitor world.
- Test all redundancy paths during rehearsals, including generator load testing and UPS runtime.
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