Polk Audio Atrium 4 4.5″ Outdoor Loudspeakers – White – Pair

Brand: Polk Audio
Model Number: Atrium 4 White
UPC: 747192118808
Polk Audio
Model Number: Atrium 4 White
UPC: 747192118808

Polk Audio Atrium 4 4.5″ Outdoor Loudspeakers – White – Pair

  • High-quality sound for outdoor entertainment
  • Built to withstand the elements
  • Dynamic Balance Technology
  • Pair of 5-way Binding Posts





Payments as low as



Product Description

Features & Specifications



Polk Audio Atrium 4 4.5″ Outdoor Loudspeakers – White – Pair

The Polk Audio Atrium 4 outdoor loudspeakers, 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.

Patented Dynamic Balance

The perfect material performance, eliminating driver and tweeter “artifacts” for more realistic sound reproduction at high and low volume levels. To install, simply mount the bracket and click the speaker into place then aim it and tighten it down.

Speed Lock Mounting System

Simply mount the bracket and click the speaker into place, Aim it and tighten it down with the Polk Audio Atrium 4 outdoor loudspeakers.

Why Polk Audio

The real question is, why anything else? We’ve always made the best speakers at the best price – that’s it.

But for storytelling’s sake, let’s back it up to 1972 where a group of friends, talented engineers, and music lovers got together with the skillset, the ambition to make the best speakers they could afford, and the attitude to change the establishment. That day, a speaker company was born with a clear vision for quality and a powerful mission for value.

Each and every day since then, all Polk products are the result of tight-knit collaboration, teamwork, and our collective passion to make great sound available to as many people as humanly possible.

A mission like that requires more than engineering expertise. It requires inventive spirit, hard-earned experience, and intuition. It’s that intuition—the most magical human ingredient—that bestows Polk products their sonic personality and pride of place in your home. To this day, design, acoustics, engineering (and ingenious, intuitive human magic) all happen under one expansive roof under the guise of democratizing sound. Because we mean it when we say great sound shouldn’t be a privilege of the few, it should be accessible and available for all.

Brand Polk Audio   Model Polk Audio ATRIUM 4 WHITE
Product: Polk Audio Atrium 4 4.5" Outdoor Loudspeakers - White - Pair

– 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
– Ethernet: Yes
– Speaker Inputs: (2) Pair of 5-way Binding Posts – Gold-Plated


– 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)




8 Ω

Number of Speakers

2 Speakers

Speaker Sensitivity

86 – 90 db

Speaker Size


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Polk Audio offers a limited 5 year Warranty


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