LiFT Linear Filtering Technology | Furman Sound AR-15 guide

AR-15 VOLTAGE REGULATOR / POWER CONDITIONER

accidental connections to 208 or 240 VAC, by shutting off the incoming power until the over voltage condition is corrected.

LiFT (Linear Filtering Technology)

Unfortunately, traditional AC ﬁlter - condition- ers have been designed for unrealistic labora- tory conditions. Prior technologies, whether multiple pole ﬁlter or conventional series mode, could actually harm audio and video performance more than they help, due to the resonant peaking of their antiquated, non-lin- ear designs. Under certain conditions, these designs can actually add more than 10 dB of noise to the incoming AC line! Furman’s SMP+ with LiFT takes another approach, ensuring optimal performance through linear ﬁltering and no leakage to ground. With this exclusive ﬁltration technology, all connected equipment will be free of noise and contamination and will operate at optimum performance levels.

Extreme Voltage Shutdown Indicator

This LED is normally off. It monitors a hazard common in the entertainment industry: wiring faults – for example, accidental connection to 220VAC where 120VAC is expected, or an open neutral from a 208 or 240VAC feed. The Series II SMP+ circuit senses voltages that are so high that operation would be impossible and shuts the power down before damage can occur. Upon initially applying power to these units, the Extreme Voltage indicator LED will light if the input voltage is above the extreme voltage cutoff, and power will not be applied to the unit’s outlets. If the unit has been operating with an acceptable input voltage and subsequently that voltage exceeds 145- 150V, it will shut off power to the outlet and the Extreme Voltage LED will light.

NOTE: If the mains power is above the high cutoff voltage and has caused the unit to remove power from its outlets, it cannot restore power without the operator manually turning the unit off, then on again. Avoid turning the unit back on, without ﬁrst checking the source of the problem, and perhaps changing the AC

source.

Protection OK Indicator

Although the Furman SMP+ circuit assures virtually protection from transient voltage spikes and surges, nature has a way of occasionally creating electrical forces that are beyond the capabilities of any TVSS device to absorb without some degree of damage. In the rare instance that this occurs, the green “Protection OK” LED indicator located on your front panel will dim. If this happens some level of protection from voltage surges will remain, but the Furman’s clamping voltage rating will be compromised. The unit must be returned to Furman Sound, or an authorized Furman Service center for repair.

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 cir- cuit 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 circuit breaker is acces- sible at the rear panel without removing the unit from the rack. This breaker will trip if the unit’s 15 amp capacity is exceeded at any time.

2.A fast-blow 1/4 amp fuse is located inside

AR-15 specifications

Furman Sound AR-15 is a highly regarded power conditioner specifically designed for professional audio applications. This device plays a crucial role in maintaining the integrity of audio and video systems by providing a stable and clean power source. One of its main features is its ability to filter out noise and voltage spikes, which can cause interference and potentially damage sensitive equipment.

One of the standout technologies in the AR-15 is its Linear Filtering Technology (LiFT). This advanced filtering process significantly reduces common-mode and differential-mode noise, ensuring that the audio signal remains pristine. The result is a dramatically improved sound quality that professionals rely on in live performances, recording studios, and broadcast applications.

Another key characteristic of the Furman AR-15 is its durable construction. Built with rugged metal housing and a design that focuses on durability, the device is well-suited for the rigors of touring and frequent relocations. Its compact 1U rack-mount design allows for easy integration into standard equipment racks, making it a convenient choice for professionals looking to streamline their setups.

The AR-15 also features a series of outlets, which include 10 filtered and surge-protected AC outlets. This allows users to connect multiple devices while ensuring they are all protected from surges and spikes. Additionally, the device has a built-in LED voltage meter that provides real-time information on the incoming voltage levels, enabling users to monitor their power conditions accurately.

To further enhance usability, the device includes a front panel with resettable circuit breakers, which provide protection against overloads while being easy to reset in case of an issue. This ensures that users can maintain uninterrupted operation, allowing for a seamless performance.

In conclusion, the Furman Sound AR-15 is a powerful and reliable tool for audio professionals. With its advanced filtering technology, durable design, and thoughtful features, it provides an essential safeguard for audio equipment, ensuring optimal performance and longevity. Whether for live sound, studio recording, or broadcast applications, the AR-15 stands as a trusted partner in achieving top-notch audio quality.