© 2008 Harman International Industries, Incorporated.
All rights reserved. Part No. INFREFENCPI3-08
Features, specifications and appearance are subject to change
without notice. Designed, edited and digitally produced by the
Harman Consumer Group Marketing & Design Center, Woodbury, NY.
Infinity is a trademark of Harman International Industries,
Incorporated, registered in the United States and/or other countries.
250 Crossways Park Drive, Woodbury, NY 11797 USA
516.674.4INF (4463) Fax 516.682.3556
www.infinitysystems.com
1220de
Dual 12" (300mm) Preloaded
Enclosure With Slipstream Port
Slipstream port delivers higher output potential
than conventional ports and greatly reduced
distortion for louder, cleaner bass
Power handling, RMS: 600 watts
Power handling, peak: 1800 watts
Sensitivity (2.83V/1m): 97dB
Frequency response: 30Hz – 300Hz
2or 8 Ohms
Dimensions (L x W x H):
17-1/8" x 36" x 16-5/16"
(435mm x 914mm x 414mm)
1220se
Single 12" (300mm) Preloaded
Enclosure With Slipstream Port
Slipstream port delivers higher output potential
than conventional ports and greatly reduced
distortion for louder, cleaner bass
Power handling, RMS: 300 watts
Power handling, peak: 1200 watts
Sensitivity (2.83V/1m): 94dB
Frequency response: 33Hz – 300Hz
2Ohms
Dimensions (L x W x H):
17-1/8" x 21-1/16" x 16-5/16"
(435mm x 535mm x 414mm)
So what’s the big deal about a
port? The Slipstream port in
Infinity Reference enclosures
eliminates that annoying
“whooshing” or “chuffing”
noise characterizing other
ported enclosures. Port noise
isn’t just nasty-sounding
distortion; it’s a sign that
something is wrong. Ports
make noise when they can’t
transfer enough air or when
the air in the port is moving
so fast that the air outside
the box can’t keep up. When
ports can’t transfer enough
air, the enclosureand the
woofer operate almost like a
sealed box, with increased
driver excursion, less bass
and a greater likelihood that
the woofer will be damaged.
The contours of the Slipstream
port flares are precisely
calculated to minimize
turbulence so there’s
no port noise. Also, the
Slipstream port’s area is
calculated differently than
the area for a conventional,
straight-sided port. As a
result, the Slipstream port
can effectivelytune the
enclosure to a lower frequency
than a straight-sided port
can, with an equivalent
cross-section. That means
better woofer reliability and
more low bass from Reference
Series enclosures.
Since 1968, Infinity engineers
have been designing and
constructing enclosures for
award-winning home audio and
home theater speakers and
subwoofers. This expertise,
coupled with extensive
knowledge of in-vehicle
acoustics, has driven the
development of this world-
class line of enclosed
subwoofers. If you are looking
for great bass, free from
noise and distortion, look
no further.
