Polk Audio Atrium 4 Outdoor Speaker Review
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Atrium Series Speakers exceed baseline industrial and military specifications for environmental endurance.
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Anodized aluminum tweeter domes with rubber surrounds are
absolutely immune to the elements, offer better power handling and
smooth response.
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Tweeter phase cap smooths the frequency response from 12KHz up to 20kHz, the last audible octave.
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Broad coverage baffle design fills a large open outdoor space
with big, full-range sound. A more steeply-angled baffle maximizes
critical mid- and high-frequency dispersion over a large area, without
sacrificing detail.
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Speed-Lock Mounting System for easy, safe one-handed installations even in difficult locations; 5 years parts and labor
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Atrium Series Speakers exceed baseline industrial and military
specifications for environmental endurance (ASTM D5894-UV Salt Fog, Mil
Standard 810 Immersion, Mil-Std 883 Method 1009.8 for salt and
corrosion.)
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Anodized Aluminum Tweeter Domes with Rubber Surrounds are
absolutely immune to the elements, provide the smooth, broad high-end
range you need for larger outdoor spaces
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