The Furman PS-Pro II is a professional-grade AC power conditioner and sequencer designed to protect and manage sensitive electronic equipment in audio, video, and musical instrument rigs. It operates as a first line of defense against damaging power anomalies, including voltage spikes, surges, and high-frequency noise that can degrade audio fidelity, cause digital glitches, or permanently harm components. The unit employs multi-stage filtration technology, combining high-current spike and surge suppression with electromagnetic and radio-frequency interference (EMI/RFI) filtering. This cleans the incoming AC power, delivering a stable, noise-free sine wave to connected gear, which often results in lower system noise floors, improved audio clarity, and enhanced video stability.

A defining feature of the PS-Pro II is its integrated sequential power management. This system powers up connected equipment in a controlled, timed order during startup and reverses the sequence during shutdown. This is critical for preventing damaging inrush current spikes that occur when multiple high-power devices like amplifiers are switched on simultaneously, and it ensures that source devices (like mixers and processors) are active before amplifiers are powered, and that amplifiers are safely muted before sources are turned off. This sequencing protects speakers from potentially harmful thumps and extends the lifespan of all connected equipment. Control is provided via a master rocker switch, and status is indicated by a series of LEDs that illuminate in sequence.

Housed in a rugged, rack-mountable steel chassis, the unit is built for the demands of both touring and fixed installation. It provides multiple protected outlets to power an entire equipment rack, and its front panel typically includes a highly visible illuminated voltage meter to monitor line conditions. By combining robust power conditioning with intelligent sequential switching, the Furman PS-Pro II offers musicians, sound engineers, and AV professionals a comprehensive power management solution that safeguards valuable equipment, reduces system noise, and enforces safe operational procedures, ensuring reliable performance show after show.