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Furman Sound today announced it has begun shipping its AR-20 II. The new 20-amp regulator delivers a stable 120 volts of AC power to protect equipment from damaging AC line voltage irregularities, while filtering and purifying AC power to ensure the optimal performance of connected equipment.

"Our new AR-20 II is unique in that it not only protects electronics from damaging voltage irregularities, but also filters out AC line noise using state-of-the-art technology so that equipment performs at the highest level possible," said Dave Keller, executive vice president of sales and marketing for Furman.

Furman's AR-20 II accepts input voltages from 97 volts to 141 volts and transforms them to a constant 120 volts. Unlike voltage regulators that use motorized transformer-based technology and switch taps at uncontrolled times — creating voltage spikes and clicks that leak into the audio — the AR-20 II compares the incoming line voltage to an extremely precise voltage reference and switches taps electronically at the zero-crossing to avoid distorting the AC waveform.

The regulator also is outfitted with Furman's proprietary Series Multi-Stage Protection Plus (SMP+) technology, which combines three filtering and protection circuits: Linear Filtering Technology™ (LiFT) suppresses noise dramatically and consistently across the entire dynamic range; 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 prolonged overvoltages by shutting off the incoming power until the overvoltage condition is corrected.

Housed in a compact dual-space, rack-mount chassis, the AR-20 II features 12 outlets on the rear panel and two convenient outlets on the front panel. All 14 outlets are regulated, spike-suppressed, and filtered against radio frequency and electromagnetic interference.

The unit is exceptionally easy to use, with a digital meter that indicates input voltage, an LED that indicates the output voltage is within regulation, and only one control: an on/off switch. It is protected by a limited three-year warranty covering defects in materials and workmanship.

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