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creates a substantial negative impact on your system’s performance. Power
ampliers and powered sub-woofers cannot perform to their full potential.
Even a relatively modest reduction in AC voltage can obliterate the sonic
impact of an otherwise superior system. Just as problematic are excessively
high line voltages. Excess voltage can overheat sensitive circuits; lower the
life and reliability of projector lamps, and cause many circuits to shut down.
With the SPR-20’s exclusive Stable Power AC Voltage Regulation Technology,
voltage-starved power ampliers and powered sub-woofers perform at their
full potential. With the SPR-20, home theaters are supplied with constant,
virtually unwavering AC voltage. This assures trouble-free service for any
environment suering from unstable power.
The SPR-20 generates virtually no heat, and produces none of the mechanical
noise typical in inferior AC voltage regulators. Further, our zero-crossing solid
state technology provides virtually unlimited peak current delivery, avoiding
the current limiting found in AC regulators that convert AC power into DC,
then synthesizing an AC output signal.
In addition to unstable voltage, today’s AC lines are plagued with RF and EMI
noise. When connecting sensitive equipment to your home’s power outlet, AC
noise couples into your system’s critical components. This AC noise masks low
level signals and cripples performance. This low level content is critical because
Furman Sound, LLC • 1997 South McDowell Blvd. • Petaluma, CA. 94954 USA
Phone: (707) 763-1010 • Fax: (707) 763-1310 • www.FurmanSound.com
Engineered and assembled in the USA
it relays the crucial harmonics and ambience in audio, as well as the depth and
clarity in video. With Furman’s exclusive Linear Filtering Technology, televisions,
projectors, DVD players, and processors are fed linearly-ltered AC power. This
dramatically reduces noise, ensuring consistent peak operation of your critical
components regardless of load conditions or the time of the day.
Another critical feature is our exclusive Series Multi-Stage Protection. This
virtually maintenance-free surge suppression assures the highest level of AC
protection possible, without sacricing itself when the oending surge is severe
– no damaged equipment, no service calls, no down time. Further, our digital AC
input voltage, output voltage, and current meters allow precise measurements
of both the AC line and the current load. These meters are a valuable asset when
monitoring systems that are connected to today’s potentially poor power grids,
or the meters may be dimmed when monitoring is not required.
When employing the SPR-20, you will notice far clearer, stunningly focused
sound and visual images from your system. Video presentation will be
crisp and colors true with greater gray and black scale denition, as well as
noticeably improved depth and clarity. When installed with the
IT-Reference 15 or 20, home theaters will reap the dual benets of Furman’s
Stable Power and Discrete Symmetrical AC Filtering, ensuring performance
without compromise – without peer.
SPR-20 SPECIFICATIONS
AC Current Capacity:
Input - 20 Amp capacity required
Output - 20 Amps RMS (19 Amps continuous @ 114VAC)
AC Voltage Regulation:
Provides AC regulation for a continuous output of 120VAC (+/- 1.0V typically)
with an input voltage range of 113VAC to 126VAC.
Linear Noise Attenuation:
Transverse (Dierential) Mode:
>40 dB from 10Khz. - 100 kHz. >80 dB from 100Khz. – 1GHz.
(Linear attenuation curve from 0.05 – 100 ohms line impedance)
Outlets:
1 (linearly ltered outlet – front panel)
8 (linearly ltered outlet – rear panel)
4 (linearly ltered outlet with additional ultrasonic ltering for digital or video components)
Shutdown Range:
135 VAC +/- 5 VAC
Dimensions:
4” H x 17” W x 16.25” D (Standard 2 RU height without feet)
Transient Voltage Surge Suppression:
120 VAC Series Multi-Stage Protection - Non-Sacricial with Zero Ground Contamination.
Extreme Voltage Shutdown (>135 VAC)
Telco
Cable / Satellite (less than .1dB line loss)
Weight:
35 lbs.
Power Consumption:
12 Watts for display and control circuits independent of actual load.
Safety Agency Listing:
NRTL-C
Warranty:
The Furman SPR-20 features a three year limited warranty covering
defects in materials and workmanship. (See manual for details)
© 2006 Furman Sound, LLC. All rights reserved. 030706