Definitions, Extreme Voltage Protection

AR - 1215 AC LINE VOLTAGE REGULATOR

drawing 40 to 50 watts total.

DEFINITIONS

VOLTAGE REGULATION: The AC line voltage is a number indicating the nominal electrical potential that has been adopted in a region for powering electrical equipment of all kinds. In most of North America it is 117 volts AC; in Japan, 100 volts; and in many other countries 220, 230, or 240 volts. The actual voltage can fall below or rise above this nomi- nal level due to brownouts, power cutbacks, use of substandard wiring, and other causes. These devia- tions can cause poor performance or a malfunction. A regulator is a device which, through use of a trans- former, corrects the voltage deviation by stepping it up or down so that it is as close as possible to the nominal level.

SPIKE: A pulse of energy on the power line. Spikes can have voltages as high as 6000 volts. Though they are usually of very short duration, the energy they contain can be considerable, enough to dam- age sensitive solid-state components in audio and computer equipment. Spikes can also foul switch contacts and degrade wiring insulation. They are an unavoidable component of electric power. They are caused unpredictably by electric motors switch- ing on or off (on the premises or outside), utility company maintenance operations, nearby lightning strikes, and other factors. Spikes (also called surges or transients) are absorbed by special components called MOV’s in the AR-series to provide safe volt- age levels to protect your equipment.

RFI/EMI INTERFERENCE: Noise from RFI (Radio Frequency Interference) or EMI (Electro Magnetic Interference) involves lower voltages and less energy than is found in spikes, but it is continuous rather than transient in nature. It is not likely to cause physical damage, but it can certainly be annoying, producing static in audio circuits, “snow” on video screens, or garbled data in computers. Noise can be introduced into AC lines by nearby radio transmitters, certain kinds of lighting, electric motors, and others.

Because noise occurs at higher frequencies than the 50 or 60 Hz AC line, it can be effectively reduced through use of low-pass ﬁ ltering.

EXTREME VOLTAGE PROTECTION

The AR-Series includes special circuitry to sense over- and under-voltages and positively shut down the output before possible damage is done. See the Speciﬁ cations on the back page for the exact voltages at which shutdown occurs. When the input voltage exceeds the limit, the power will cut off. It will come back on automatically when the overvoltage is removed as long as the voltage has not exceeded 300V [all models]. The red LED labelled EXTREME VOLTAGE SHUTDOWN indicates the shutdown condition. The output is also shut down for extremely low input voltages.

To provide protection against a catastrophic error in AC mains wiring, dangerously high voltages (those over approximately 300V) will cause an internal fuse to blow, but equipment plugged into the Voltage Regulator will not be damaged.

FUSES AND CIRCUIT BREAKERS

There is one fuse and one circuit breaker in the AR-Series. In the event that the unit appears to be completely dead (neither the Power switch nor any LED’s light up), unplug the power cord and the load and check the breaker. If the circuit breaker is tripped, a white button will pop up. Push it back in to reset it. The purposes of these circuit protection devices are:

1.A fast-blow 15 amp [6 amp] circuit breaker is accessible at the rear panel without removing the unit from the rack. This breaker will trip if the unit’s 15 amp [6 amp] capacity is exceeded at any time.

2.A fast-blow 1/4 amp fuse is located inside the unit. This fuse will blow if the unit has been connected to a voltage that is above the range

AR-1215J, AR-2306, AR-1215 specifications

Furman Sound has long been synonymous with high-quality power management and signal processing equipment, and their line of power conditioners, including the AR-1215, AR-2306, and AR-1215J, exemplifies this reputation. Each of these models is designed to meet the needs of audio professionals by providing stable power to their equipment, reducing unwanted noise, and ensuring optimal performance.

The AR-1215 is a highly sought-after power conditioner renowned for its performance in various applications, from live sound to studio work. This model features a 15-amp rating, offering ample power for most audio setups. The AR-1215 is equipped with Furman's Series Multi-Stage Protection, which safeguards connected equipment from power surges and spikes. The unit also utilizes a linear filtering technology that helps to eliminate electromagnetic interference, resulting in a cleaner signal path. Additionally, the AR-1215 includes a front-panel voltage meter for real-time monitoring of incoming voltage, giving users peace of mind that their equipment operates within safe parameters.

Moving on to the AR-2306, this model is designed with larger setups in mind, featuring a robust 30-amp capacity. The AR-2306 also incorporates Furman's advanced power conditioning technology, enhancing both audio and visual systems. This model includes multiple outlets with additional filtering capabilities, allowing for seamless integration of a variety of components. The unit is designed to work well in both tour and installation environments, ensuring that high-performance audio remains consistent, regardless of the setting.

Lastly, the AR-1215J is designed for Japanese markets, showcasing Furman's commitment to global adaption and customization. This variant incorporates the same high-quality features as the original AR-1215 but is tailored to meet the specific power requirements and outlet configurations commonly found in Japan. With a compact design and lightweight build, the AR-1215J is ideal for mobile audio professionals seeking a dependable power solution without sacrificing space or weight.

Overall, the Furman Sound AR series—comprising the AR-1215, AR-2306, and AR-1215J—stands out for its commitment to protecting audio equipment, reducing noise interference, and enhancing performance. With advanced power conditioning technologies, users can trust these units to maintain the integrity of their sound systems in diverse environments, making them indispensable tools for audio professionals around the world. Whether for live events, studio recordings, or installations, Furman Sound continues to lead the way in reliable power solutions.