Exceptional sound anywhere you want it – really, anywhere. The compact Atrium® 4 Outdoor Loudspeaker meets or exceeds military specifications for environment endurance. Its small size makes it ideal for tight, out-of-way installations: by the pool, next to the deck or patio, around the kitchen, tucked away in the family den or filling the backyard with great sound. The easy to mount Atrium 4 will deliver high performance audio fall, winter, spring and summer, bringing years of outdoor enjoyment. Available in durable, weatherproof black or white paintable finishes.
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Polk Atrium 4 Outdoor Speakers: All-Weather Sound for Any Space

Bring big sound to your backyard, patio, or pool deck with the Polk Atrium 4 Outdoor Speakers. These compact, weatherproof speakers defy their size with impressive bass response and wide sound coverage. Polk Atrium 4 speakers are built tough to endure extreme weather conditions, meeting or exceeding military specifications for environmental endurance. Easy to install with Polk's Speed-Lock mounting system, the Atrium 4 delivers high-performance audio all year round.

Here's why Polk Atrium 4 Outdoor Speakers are the perfect choice for your outdoor sound system:

• All-weather durability: Exceeds military specifications for environmental endurance (ASTM D5894-UV Salt Fog, Mil Standard 810 Immersion, Mil-Std 883 Method 1009.8 for salt and corrosion).
• Compact size: Ideal for tight spaces, by the pool, deck, patio, or anywhere outdoors.
• Superior sound: Delivers surprisingly good bass response and broad sound coverage to fill your outdoor space with big, full-range sound.
• Easy to mount: Speed-Lock Mounting for fast and secure installation.
• Available in black or white to match your décor.

Polk Atrium 4 Outdoor Speakers are the perfect solution for anyone who wants to enjoy high-quality sound outdoors, no matter the weather.

Polk Atrium 4 Specifications

• Total Pieces: 1
• Cabinet Warranty: 5 Years - Original Purchaser Only
• Drivers Warranty: 5 Years - Original Purchaser Only
• Original Purchaser Only: Yes
• Carton 1 Weight: 9.5 lbs (4.31 kg)
• Qty Included: Pair
• Availability: US, Internationally
• Orientation:
  • Horizontal
  • Vertical
• Dimensions:
  • Height: 8.625" (21.91 cm)
  • Width: 5.688" (14.45 cm)
  • Depth: 6.688" (16.99 cm)
• Weight: 3.6 lbs (1.63 kg)
• Front Array Driver Complement:
  • (1) 4.5" (11.43 cm) d (Round) - Mid/Woofer
  • (1) 0.75" (1.91 cm) d (Round) - Tweeter
• Total Frequency Response: 75 Hz → 25,000 Hz
• Nominal Impedance: 8 ohms
• Sensitivity (1 watt @ 1 meter): 89 dB
• Mounting Type: 180° Speed-Lock mounting system with Keyhole Slots
• Available Orientations:
  • Horizontal
  • Vertical
• Recommended Amplifier Power Per Channel: 10 watts → 80 watts
• Audio Inputs: -
• Ethernet: No
• Speaker Inputs: (2) Pair of 5-way Binding Posts - Gold-Plated

Polk Atrium Series Infosheet

Polk Atrium Series Owners Manual