Polk Audio Atrium 65SDI - Manual (Page 4)

DYNAMIC BALANCE ®
Advanced laser imaging technology allowed Polk Audio engineers to see the entire vibrating surface of a driver
and tweeter; they could actually see the resonance develop on the speaker cones—resonance that is the root
cause of loudspeaker distortion (A). Being able to see the resonance develop, they determined the “Dynamic
Balance” of high-tech materials, geometry and construction that effectively tune out the offending resonance
(B). Exclusive Dynamic Balance Composite Material Technology delivers sound that’s effortlessly clean and
clear, even at lifelike volume. See more about Dynamic Balance at www.polkaudio.com/catalog/technology/.
B
A
polk
technology
4 ATRIUM SERIES LOUDSPEAKERS
ATRIUM55
The Atrium55 Indoor/Outdoor Loudspeaker is the ultimate in
flexibility, reliability and high fidelity sound quality for the great
outdoors. The Atrium55 gives you the freedom to put speakers
anywhere you want high performance sound. The kitchen, the
den, the guestroom, the patio or pool, even the backyard BBQ
pit. The rugged Atrium55 meets or exceeds stringent industry
and military specifications for full exposure to the elements
for years of reliable high performance sound anywhere in
and around your home.
Atrium ® loudspeakers meet or exceed Military Waterproofing
Specs: ASTM D5894-UV Salt Fog, Mil 810 Immersion
and Mil 883 for salt and corrosion.
Rustproof aluminum brackets allow multiple
mounting options and full 90° rotation.
Stainless Steel and Brass hardware for years
of rustproof reliability.
ALL WEATHER LOUDSPEAKER
OVERALL DIMENSIONS:
10 3/4" H X 7 1/2" W X 9 3/8" D (27.30CM H X 19.05CM W X 23.81CM D)
OVERALL FREQUENCY RESPONSE: 60Hz - 20kHz
SEE SPECIFICATIONS FOR MORE DETAILED PRODUCT INFORMATION.
MATTE BLACK MATTE WHITE
(PAINTABLE)
(PAINTABLE)
ATRIUM50
The Atrium50 Multi-Application Loudspeaker produces high
fidelity sound quality anywhere you want great sound, whether
it’s entertaining outdoors by a pool, helping around the kitchen,
relaxing in the family den or just hanging out in the backyard.
This is one rugged speaker, built to deliver years of great
performance over years of exposure to the elements.
All stainless steel and brass hardware for years
of rustproof reliability.
Meets or exceeds ASTM D5894-UV Salt Fog, Mil
standard 810 Immersion and Mil Standard 883
Method 1009 8 for salt and corrosion tests.
Rustproof aluminum bracket allows multiple mounting
options and full 90° rotation: aim them to deliver.
The best possible sound in a variety of locations.
Gold plated 5-way binding post inputs.
Sculpted front baffle and rounded enclosure minimize
diffraction (sound reflecting off of hard edges) for
more open and lifelike imaging.
ALL WEATHER LOUDSPEAKER
OVERALL DIMENSIONS:
9 1/2" H X 6 1/4" W X 7 3/4" D (24.13CM H X 15.88CM W X 19.7CM D)
OVERALL FREQUENCY RESPONSE: 75Hz - 20kHz
SEE SPECIFICATIONS FOR MORE DETAILED PRODUCT INFORMATION.
MATTE BLACK MATTE WHITE
(PAINTABLE)
(PAINTABLE)
ATRIUM55 ATRIUM55 ATRIUM50