Furman RA1220, RA1210 User Manual

Stable Power AC Line Voltage Regulator

MODELS: RA-1210 (10 AMP)
RA-1220 (20 AMP)

Instruction Sheet

Introduction

Thank you for your purchase of Furman Sound’s Reference Series Stable Power AC Line Voltage
Regulator, and congratulations on your choice. The RA-1210 and RA-1220 are no-compromise, no­expense-spared designs, with painstaking attention paid to the ultimate sonic and visual impact of every
component within them. The Reference Series is the flagship AC power regulating and conditioning line
of Furman Sound, a company that has pioneered AC power products for the most demanding profes­sional audio and video professionals for more than 25 years.

Features

• Delivers a stable 120VAC +/- 1.5V with incoming voltage between 114VAC and 126VAC.

• High Current capability (20 Amps RA-1220, 10 Amps RA-1210).

• True R.M.S. AC voltage and current meter deliver laboratory-level accuracy.

• Extreme voltage shutdown and LED indicator ensure that neither excessive nor insufficient volt-

ages ever reach your valuable equipment.

• Premium-quality magnetic circuit breaker with optimized current sensitivity prevent nuisance trip-
ping.

• 800V peak 250 Amp capable active voltage-switching devices stand up to the toughest power
demands.

• Ultra-low contact resistance Super-Spec AC outlets.

• Additional AC filtering for Digital outlets.

Description

In these days of overtaxed, commercial AC power facilities, and utilities lowering their standard voltage
levels, the need for stable power has never been greater. A two volt rise or drop in AC voltage can dra­matically impact power amplifiers and powered sub-woofers, robbing them of their peak power capabil­ity,. This causes them to overheat, and veer from their optimum performance capabilities. Premium per­formance requires Stable Regulated AC Power. Furman Sound’s new RA-1210 and RA-1220 Stable
Power AC Line Voltage Regulators provide a constant 120VAC while maintaining the ultra-low noise,
cool operating, low-impedance operation that is the hallmark of the Furman Reference Series.

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With the Reference Series exclusive Ultra-Low Noise Stable Power AC Line Regulators, Power Amplifi­ers and Powered Sub-Woofers perform at their full potential. Sonic transients and low frequencies are
startling in their visceral impact and clarity. When used with its Symmetrical Power sibling, (the RI-1210
or RI-1220) video monitors, pre-amplifiers, compact-disc transports, multi-channel processors, digital
audio converters, and stereo system turntables are fed ultra-low-noise, finely regulated, isolated Sym­metrical Balanced power. This provides two benefits: Not only does it ensure pure, Stable Power from
your home’s AC supply, it also balances it, reducing AC noise dramatically. Additionally, Furman Refer­ence Series products generate virtually no heat, and are more than capable of the full AC current de-
mands your system requires for maximum performance. AC regulators that convert incoming AC power
into DC, and then synthesize an AC output are inherently inefficient, and may seriously limit your Power
Amplifiers’ full potential.

In addition, the RA-1210 and RA-1220 ensure that your sensitive equipment never operates outside of its
optimal AC voltage range, and that damage will not occur from voltage surges or any power line irregu­larities. The RA’s extreme voltage protection prevents your valued equipment from ever being ravaged
by an electrical storm or careless power utility.

When employing Furman’s Reference Series Symmetrical and Stable power conditioning, you will im­mediately notice far clearer, stunningly focused sound and visual images from your system. Video pres­entation will be crisp and colors true. Mid and high frequencies will bloom with non-glaring ease, and
imaging will improve dramatically, all the while remaining true to your system’s inherent virtues.

Installation

Before unpacking your unit, inspect the carton for any obvious severe damage to the box. Then open it
and check the internal protective materials. If there is damage to the internal protective materials, con­tact the carrier who delivered the unit before proceeding with unpacking. If, after unpacking, shipping
damage is evident, contact the carrier. Save all shipping and unpacking materials. You may need them
if you ever return the unit to our factory for service.

The box should contain the RA-1210 or RA-1220 unit, detachable AC power cord, owner’s manual, and
warranty registration card. If anything is missing, please contact Furman Customer Service. Fill out and
return your warranty registration card. Registration is recommended because it can be used to establish
whether the unit is within the warranty period if your original ownership document is lost, and will assist
us in informing you about upgrades or other vital information.

The power source to which a RA-1220 is connected must be adequate for use at 20 Amps continuous
operation. Though the unit will function with a 15 Amp panel circuit breaker, it is not recommended, as
vastly inferior performance and substandard protection (depending on your system’s total current de­mands) could result. If your system includes power amplifiers or projectors with more than modest power
demands, a panel circuit breaker with at least a rating of 20 Amps is essential for optimum performance.
If other electrical loads are used on the same branch circuit, and your system’s continuous current load is
in well in excess of 10 Amps, we recommend a 30 Amp panel breaker wired with #10 gauge wire. For
installations that must comply with NEC codes, a 20 Amp panel circuit breaker with a dedicated line
(branch circuit) is the minimum requirement. The RA-1210 will function well with standard household 15
Amp panel breakers and a 15 Amp branch circuit. If other electrical loads are used on the same branch
circuit, they should be relatively modest (well below 5 Amps total). If this is not the case, you will need to
use a 20 Amp panel breaker and branch circuit. If in doubt consult your dealer or local electrician.

The RA-1210 and RA-1220 are manufactured with four rubber feet for placement on any table, cabinet,
shelf, or floor capable of supporting its weight. Because of the Reference Series low-flux density
Auto-transformer design, placement or proximity to other components is not critical, and the RI-1210 and
RI-1220 do not produce any appreciable heat.