Polk Atrium 4 – Flush Mount Outdoor Speaker
Polk
$84.21
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Polk
Polk Atrium 4 – Flush Mount Outdoor Speaker
Polk Atrium Series: 4
Big Fidelity, Small Speaker. The Compact Atrium4 loudspeaker produces high fidelity sound quality anywhere you want great sound. Its small size makes it ideal for tight, out-of-way installations.
- All-Weather certified
- 4.5" Dynamic Balance® polypropylene woofers
- 3/4" Anodized Aluminum Dome tweeter
- Speed-Lock Mounting system
- White is paintable to match your own outdoor decor
Highlights & Key Technologies
All-Weather Certified
Made to withstand the elements, these speakers are built to last and produce rich, lifelike, space-filling sound—no matter the weather. 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).
Dynamic Balance® Drivers
Whether you’re lounging in your favorite chair, hosting a BBQ, or spending time with the family outdoors, you won’t miss a single word of your favorite tunes. The Atrium Series outdoor speakers deliver crisp, powerful vocals—without distortion. Their Patented Dynamic Balance® and Klippel Optimization Technologies ensure optimal material performance, eliminating driver and tweeter “artifacts” for more realistic sound reproduction at high and low volume levels.
Speed-Lock™ Mounting System
Sprucing up the patio or backyard is a cinch with easy, secure one-handed installations even in difficult locations. The Speed-Lock Mounting System ensures easy, safe one-handed installations and no-slip setting of the speaker angle. This greatly simplified mounting procedure means fewer parts and a quicker setup.
Designed in USA
Proudly engineered and designed in Baltimore, Maryland, Polk products are crafted to meet high standards of quality, performance, and reliability, ensuring a premium audio experience that is the pinnacle of American Hi-Fi.
Details & Specifications
Quantity Included: 2 Speakers
Driver Enclosure Type: Durable, mineral-filled polypropylene cabinet design
Mid-Bass Driver: 4 1/2" (114mm) mineral filled Dynamic Balance® polymer cone, rubber surround
Tweeter: 3/4" (19mm) anodized aluminum dome tweeter w/ rubber surround and neodymium motor structure
Total Frequency Response: 75 Hz → 25,000 Hz
Nominal Impedance: 8 ohms
Sensitivity (1 watt @ 1 meter): 89 dB
Recommended Amplifier Power: 10-80W Continuous
Mounting Type: Flush 180° Speed-Lock mounting system with Keyhole Slots
Mounting Orientation: Vertical or Horizontal
Cabinet Warranty: 5 years
Drivers Warranty: 5 years
Original Purchaser Only: Yes
Dimensions (HxWxD): 8.625" (21.91 cm) x 5.688" (14.45 cm) x 6.688" (16.99 cm)
Weight: 3.6 lbs (1.63 kg)
Carton Weight: 9.5 lbs (4.31 kg)
IGNORE: Atrium4, Atrium-4
