Polk Audio Atrium 55 Indoor Outdoor Speakers New

New, open box The Atrium 55 combines superb Polk sound with an extremely durable design for an outdoor speaker that will deliver years of outstanding performance. The rugged enclosures not only feature rust-proof hardware and grilles, but also meet or exceed stringent military specifications for full exposure to the elements. And you'll love the clean, dynamic sound of its 1" dome tweeter and 5-1/4" Dynamic Balance woofer. The included mounting brackets add complete placement flexibility. They also allow you to rotate the speakers by 90º after they've been mounted, letting you direct the sound to different areas as needed. The Atrium 55s are also voice-matched to Polk's RTi speakers, and therefore make great surrounds in a complete Polk home theater system. The white Atrium 55 can be painted to match the color its surroundings. Details: frequency response 60-20,000 Hz (-3dB) sensitivity 90 dB 8-ohm impedance handles up to 100 watts gold-plated 5-way binding posts all hardware is rust-proof brass or stainless steel meets or exceeds ASTM D5894-UV Salt Fog, Mil standard 810 Immersion and Mil standard 883 Method 1009 8 for salt and corrosion tests speaker grilles and mounting brackets are rust-proof aluminum mounting brackets included 10"H x 7-9/16"W x 7-13/16"D