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Furman Rackmount Power Factor Pro R

Furman Sound announced an enhanced single-space, rackmount version of its Power Factor Pro floor/stage power conditioner. The new Power Factor Pro R includes more than double the number of outlets and a BNC connector for attaching a rack-illuminating gooseneck lamp.

“Most musicians have never heard the quality of sound that their amplifiers are capable of producing because contaminated AC power has been the norm for as long as they have been performing,” says Dave Keller, executive VP of Furman Sound. “Stadiums, bars and rehearsal spaces all utilize the same noise-degraded power sources that make amplifiers sound muddy at peak moments. Our Power Factor Pro R purifies power for optimal sound production, stores extra current to enable maximum performance and protects sensitive electronics from surges, spikes, over-voltages and other potentially devastating conditions.”

Integral to the Power Factor Pro R is Furman’s Power Factor Correction technology, which lowers the AC line impedance supplied by wall outlets and reserves a current surplus for peak demands. It provides a minimum of three amps of continuous current reserve and maintains a surplus of more than 45 amps to address the transient power demands of guitar solos and climaxes.

Power Factor Correction is coupled with another of Furman’s proprietary technologies, Series Multi-Stage Protection Plus (SMP+), which combines three filtering and protection circuits. Linear Filtering Technology™ (LiFT) suppresses noise consistently across the entire dynamic range, a vast improvement over typical AC filters with nonlinear circuits that reduce noise unevenly and can add noise. Series Multi-Stage Protection (SMP) clamps and dissipates damaging transient voltages at the highest degree available without sacrificing itself. And Extreme Voltage Shutdown (EVS) circuitry protects against accidental connections to 208 or 240 VAC by shutting off the incoming power until the over-voltage condition is corrected.

The Power Factor Pro R has eight outlets on the rear panel and an easy-to-reach ninth on the front panel. A BNC connector on the rear panel can be used to attach any standard 12-volt gooseneck lamp to illuminate the back of the rack. The Power Factor Pro R is rated for 12 amps and has a 20-segment voltmeter on the front panel that displays the incoming line voltage in a range of 90 to 128 volts. A three-year limited warranty covers defects in materials and workmanship.

To learn more about the Power Factor Pro R, visit For more new sound reinforcement products, visit