POLK AUDIO Atrium 4 4.5" 2-Way Outdoor Speaker Black Pair
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POLK AUDIO Atrium 4 4.5

POLK AUDIO Atrium 4 4.5" 2-Way Outdoor Speaker Black Pair

Availability: IN STOCK, ships out in 1-2 Business Days. LAST ONE!
40% off msrp
Click for the BBB Business Review of this Electronic Equipment & Supplies - Dealers in Apopka FL
Item Condition:
Polk Audio Factory Refurbished
Manufacturers Warranty:
2 Year Polk Audio
Manufacturers Part #:
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Open-Air Performance

Planted in your landscaping, hung from an awning or installed anywhere else around your home, Atrium® Series speakers are built to withstand the elements and fill large outdoor spaces with high quality sound.

*Sold exclusively within the US only. No shipments allowed outside the US!

All-Weather Certified

Atrium® Series speakers are rigorously tested against inclement weather, extreme temperatures and the harshest conditions to exceed baseline industrial and military specifications for environmental endurance.

Limitless Outdoor Sound

Atrium® Series speakers give you the freedom to put speakers anywhere you want high performance sound. In addition to multiple options for easy installation and mounting, each product undergoes a rigorous weatherproofing certification program that far exceeds typical military specification weather tests. The result is a new standard for reliable outdoor audio.

Dynamic Balance®

Patented Dynamic Balance® and Klippel optimization technology delivers big, full-range audio and legendary Polk Audio sound quality.

Premium outdoor Components

Anodized aluminum tweeter domes with rubber surrounds and aerated polypropylene cones are engineered to provide years of dependable outdoor performance.

Power Port®

Proprietary water-resistant Power Port® bass venting adds an efficient boost of big, realistic, musical bass output that can be felt from the ground up.



On-wall, Bookshelf and Soundbars

  • Orientation

    • Horizontal

    • Vertical

  • 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 - Tweeter

    • (1)  0.75" (1.91 cm) d (Round) Tweeter - Tweeter

Audio Quality

  • Total Frequency Response

    75 Hz → 25 Hz

  • Nominal Impedance

    8 ohms

  • Sensitivity (1 watt @ 1 meter)

    89 dB

Swivel Wall/Ceiling Mount Mount

  • Mounting Type

    180° Speed-Lock mounting system

  • Available Orientations

    • Horizontal

    • Vertical

External Amplifier

  • Recommended Amplifier Power Per Channel

    10 watts → 80 watts


  • Speaker Inputs

    (2) Pair of 5-way Binding Posts - Gold-Plated

Item Condition

Item Condition

Polk Audio Factory Refurbished

Factory refurbished products are returned (or open box returned) product that have been refurbished and certified by Polk Audio to match Polk’s performance, functionality, and reliability standards of new product. Refurbished products may have minor cosmetics blemishes and/or imperfections. The manual and accessories are included with most of our refurbished items. Cosmetic blemishes and imperfections are not covered by the warranty. Polk Audio, Inc., warrants to the original retail purchaser only. This warranty will terminate automatically prior to its stated expiration if the original retail purchaser sells or transfers the product to any other party.

Polk Audio, Inc., warrants, to the original retail purchaser only, that the HOME LOUDSPEAKER(S), and PASSIVE CROSSOVER COMPONENT(S) on this Polk Audio Loudspeaker Product will be free from defects in material and workmanship for a period of two (2) years (6 months on active components) from the date of original retail purchase from Polk Audio.






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