Furman AC Voltage Regulators

Sales of Furman AR-15, AR-20, AR-1215, and AR-PRO AC voltage regulators at Sweetwave Audio. For more products or assistance call us at 1-877-258-0563.

Furman AR-15 Series II

The 15 amp AR-15 Series II delivers a stable 120 volts of AC power to protect equipment from problems caused by AC line voltage irregularities such as sags, brownouts, or overvoltages - all of which can cause sensitive electronic equipment to malfunction or sustain damage. AR-15 Series II accepts any input voltage from 97V to 137V and transforms it to a constant 120V, ±5V. Voltages beyond that range may also be converted to usable levels, depending on the range variance.

Additionally, the AR-15 Series II is the only regulator that filters and purifies AC power, reducing line noise and ensuring optimum performance. Not only will your equipment perform better with Furman's advanced filtering technology, but it will also be fully protected by our exclusive Series Multi-Stage Protection Plus circuitry (SMP+), which features Linear Filter Technology (LiFT) and Extreme Voltage Shutdown (EVS) with high current TVZ-MOV. This circuit provides the highest level of power protection available.

Many competitive voltage regulators use noise-inducing, motorized transformer-based technology. This results in large, expensive, and less reliable units which can not match the level of performance delivered by the AR-15 Series II. Essentially, Furman's advanced technology allows us to offer superior performance in a single rack space unit at a cost effective price point.

The AR-15 Series II circuitry monitors the incoming line voltage with each cycle, comparing it to an extremely precise voltage reference, accurate to ±0.15%. If a voltage fluctuation requires that a different tap be selected, the new tap is switched electronically at the zero-crossing, to avoid distorting the AC waveform. (Most commercial voltage regulators using multiple-tapped transformers switch taps at uncontrolled times, thereby creating voltage spikes, and often creating clicks that can leak into the audio.) The design is not sensitive to small errors in line frequency, making it ideal for use with generators.

The AR-15 Series II has eight outlets on the rear panel and one on the front panel. All outlets are regulated, spike-suppressed, and filtered against RFI. There are no controls except the on-off switch. A bar-graph meter comprised of 10 LED's indicates input voltage, while another LED indicates “In Regulation” status (i.e. that the output voltage is within ±5V of 120V).

• Delivers a stable 120 ±5 VAC whenever the input AC line voltage is between 97V and 137V
• Linear Filtering Technology (LiFT) with zero ground contamination
• Series Multi-Stage Protection Plus (SMP+) with Extreme Voltage Shutdown (EVS)
• Output capacity 15 amps
• Low noise torodial autoformer
• BNC connector on the rear panel lets you attach any standard 12V goose neck lamp to illuminate the rear of your rack
• Eight outlets on the back panel, one on the front

Datasheet

Furman AR-20 Series II Voltage Regulator / Power Conditioner

The AR-20 II delivers a stable stream of AC power to protect equipment from problems caused by AC line voltage irregularities such as sags, brownouts, or over-voltages - all of which can cause sensitive electronic equipment to malfunction or sustain damage. Featuring a generous 20 amp capacity, the AR-20 II accepts any input voltage from 97V to 137V and transforms it to a constant 120V. Voltages beyond this range are also converted to usable levels, unless they are extremely far out of range, in which case the unit will automatically power down to prevent equipment damage.

Additionally, the AR-20 II is the only 20 amp regulator that filters and purifies AC power, reducing line noise linearly and ensuring optimum performance. Your equipment will perform at optimum levels and will be fully protected from spikes and surges by Furman's exclusive SMP+ technology. This virtually maintenance-free surge suppression system incorporates Linear Filtering Technology (LiFT), Extreme Voltage Shutdown (E.V.S.), and high current TVZ MOVs to provide the highest level of power protection available - all without the need for servicing or replacement of the unit. Just install it in your rack and forget about it!

Many competitive voltage regulators use noise-inducing, motorized transformer-based technology. This results in large, expensive, and less reliable units which cannot match the level of performance delivered by the AR-20 II. Essentially, Furman's advanced technology allows us to offer superior performance in a cost effective unit.

The AR-20 II's circuitry monitors the incoming line voltage with each cycle, comparing it to an extremely precise voltage reference, accurate to ±0.15%. The design is not sensitive to small errors in line frequency, making it ideal for use with generators. If a voltage fluctuation requires that a different tap be selected, the new tap is switched electronically at the zero-crossing, to avoid distorting the AC waveform. (Most commercial voltage regulators usingmultiple-tapped transformers switch taps at uncontrolled times, thereby creating voltage spikes, and often creating clicks that can leak into the audio.)

The AR-20 II has twelve outlets on the rear panel and two convenience outlets on the front panel. All outlets are regulated, spike-suppressed, and filtered against radio frequency and electromagnetic interference. The twelve rear outlets are divided into two separate banks with bi-directional filtering for either analog or digital components. There are no controls except for the on-off switch. A digital meter indicates input voltage, while another LED indicates “In Regulation” status (i.e., that the output voltage is within ±5V of 120V). The unit is housed in a compact, dual-space rack mount chassis, 3.5” high and 17.125” deep with rack ears (14.125” deep without rack ears).

Features

• Precise Voltage Regulation delivers a consistent, stable 120 Volts output to safely power connected equipment and optimize performance regardless of fluctuations in the input level
• Series Multi-Stage Protection Plus (SMP+) for virtually maintenance free protection from surges and spikes. No sacrificed parts, no service calls, no downtime!
• Furman's unequaled Linear Filtering Technology (LiFT) rids systems of AC line noise for consistent audio/video clarity
• Automatic Extreme Voltage Shutdown (E.V.S.) powers down equipment during a prolonged or extreme over-voltage
• Ultra-low noise torodial autoformer assures no mechanical noise or hum-inducing magnetic field
• Fourteen AC outlets with two bi-directionally filtered banks to isolate digital and analog components
• Output capacity 20 amps

Datasheet

Furman AR-1215 AC Line Voltage Regulator

The 15 amp AR-1215 AC Line Voltage Regulator is intended to protect audio, video, computer and other electronic equipment from problems caused by AC line voltage irregularities-sags, brownouts, or overvoltages that can cause sensitive digital equipment to malfunction, or, in extreme cases, to sustain damage.

The AR-1215 is designed to provide a steady, stable 120 VAC output. It accepts any input voltage from 97V to 141V and transforms it to a constant 120V, ±5V. Voltages beyond that range may also be converted to usable levels, depending on how far out of range they are. The AR-1215 can handle loads totaling up to 15 amps as long as the input voltage is above 124 volts. For voltages below that level, its capacity must be derated at approximately .15 ampere per volt.

The AR-1215 has been designed specifically with the unique needs of audio and video in mind. Its technology differs from that of computer-oriented voltage regulators in many important ways. For example:

The AR-1215 does not use a ferro-resonant transformer, which would be heavy and bulky, radiate a large magnetic field, and be too frequency-sensitive to be usable with generators. Instead, it uses a use a design based on an eight-tap toroidal autoformer. The toroidal design assures minimal leakage of stray magnetic fields.

The AR-1215 circuitry monitors the incoming line voltage with each cycle, comparing it to an extremely precise voltage reference, accurate to ±0.15%. If a voltage fluctuation requires that a different tap be selected, the new tap is electronically switched exactly at the zero-crossing, to avoid distorting the AC waveform. (Most commercial voltage regulators using multiple-tapped transformers switch taps at uncontrolled times, thereby creating voltage spikes, and often creating clicks that can leak into the audio.) Hysteresis of 1.5V in the switching circuits avoids "chatter." The design is not sensitive to small errors in line frequency, making them ideal for use with generators.

The AR-1215 also features power conditioning that is truly in a class by itself, thanks to the quantity, quality and configuration of the overvoltage suppression devices used. These include MOV's, high voltage inductors and capacitors, and precise high-inrush magnetic circuit breakers. This unique combination can safely divert large spikes as well as filter audible high frequency noise.

An additional feature, Extreme Voltage Shutdown, senses dangerously high or low voltages and shuts down the output before any damage is done. The output remains off until the overvoltage or undervoltage is removed, with an LED indicating the shutdown condition. This invaluable feature provides positive protection to your equipment from accidental connection to incorrect line voltages (for example, 220V when 120V is expected-- a not uncommon hazard in the entertainment industries.)

The AR-1215 has eight outlets on the rear panel, and one on the front panel. All outlets are regulated, spike-suppressed, and filtered against RFI with a 3-pole filter. There are no controls except the circuit breaker/on-off switch. A bar-graph meter comprised of 10 LED's indicates input voltage, while another LED indicates "In Regulation" status (i.e., that the output voltage is within ±5V of 120V.) The unit is housed in a compact, single-space rack-mount chassis, 1.75" high and 8" deep (8.9 x 43.2 cm) and weighs only 12 lbs. (5 kg).

Features

• Delivers a stable 120 ±5 VAC whenever the input AC line voltage is between 97V and 141V
• Eight outlets on the back panel, one on the front
• Output capacity 15 amps
• Eight-tap toroidal autoformer
• 10-LED bar-graph Input Voltage meter
• Extreme overvoltage/undervoltage causes instant shutdown, protecting equipment
• Extreme Voltage Shutdown indicator LED
• Output In Regulation indicator
• Low stray magnetic field leakage

Datasheet

Furman AR-PRO AC Line Voltage Regulator

The AR-PRO AC Line Voltage Regulator is intended to protect computer, audio, video and other electronic equipment from problems caused by AC line voltage irregularities-- sags, brownouts, or overvoltages that can cause sensitive digital equipment to malfunction, or, in extreme cases, to sustain damage. It accepts single phase input AC voltages anywhere within two capture ranges, 88 to 142 or 170 to 264 volts, and converts them to the North American standard 120 volts (or, if desired, 100V). Voltages outside the ranges may be converted to usable levels, depending on how far out of range they are and what is considered usable. For example, any voltage from 80 to 267 will be converted to 120V +9, -11.

The AR-PRO can handle loads totalling up to 30 amperes as long as the input voltage is equal to or above 120V (low range) or 240V (high range). For voltages below that level, its capacity must be derated at approximately 250 mA per volt.

Because the AR-PRO requires no switching to discriminate between a nominal 120V or a nominal 240V source, it can protect against a catastrophic error in AC mains wiring (for example, in live performance situations, where each act requires a special AC configuration, accidental connection to 220V occurs surprisingly often). This feature also makes the AR-PRO ideal as a component of a power distribution scheme suitable for worldwide use, accommodating national voltages of 100, 120, 220, 240, or others with equal ease and without need for readjustment.

The AR-PRO uses a design based on a 25-tap toroidal autoformer. The toroidal design assures minimal leakage of stray magnetic fields and a highly efficient, compact package. The AR-PRO's circuitry monitors the incoming line voltage with each cycle. If a voltage change requires that a different tap be selected, the new tap is electronically switched in precisely at the zero-crossing, to avoid distorting the AC waveform. If necessary, the AR-PRO can switch taps as often as once each cycle. Most commercial voltage regulators using multiple-tapped transformers switch taps with relays at uncontrolled times, thereby creating voltage spikes! And unlike voltage regulators that employ ferro-resonant transformers, the AR-PRO is not sensitive to small errors in line frequency, making it ideal for use with generators.

The AR-PRO has twelve convenience outlets on its rear panel, and two on the front panel. All outlets are regulated, spike-suppressed, and filtered against RFI with a 3-pole filter. There are no controls except a master circuit breaker, which serves as an on-off switch. Two bar-graph meters each comprised of 21 LED's each indicate input voltage and output current, while three other LED's indicate proper function (i.e., that the output voltage is within ±5% of the selected voltage, or above or below that range). One or more units may be turned on remotely, either simultaneously or in sequence, with a simple low voltage switch closure.

The AR-PRO is housed in a double space (3.5" high and 16" deep) rack-mount chassis, and weighs only 50 lbs (23 kg). It is made of extremely rugged heavy-gauge black powder-coated steel. Optional adjustable rear rack ears (order part number RRM-2) allow it to be secured in the rear for extra stability in mounting. It is supplied with a mating female twist-lock connector ready to terminate your custom supply cable.

Features

• Delivers a stable 120 ±5 VAC whenever the input AC line voltage is between 97V and 141V

Datasheet