Atrium 4
Atrium 4
Atrium 4
Atrium 4
Atrium 4

Atrium 4

Outdoor Speakers with 4.5" Drivers

£299

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.

  • Engineered and designed in USA
  • Great sound for every room
  • 5 years warranty
  • Built to last
Colour
Black White
Black
Availability:
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Atrium 4

Atrium 4

£299
£299
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Great outdoor sound

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.

Outdoor speaker family

Incorporate multiple Atrium speakers together to create the ultimate outdoor speaker system.

Key Technologies

  • Engineered and 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.
  • Polk’s exclusive lightweight Dynamic Balance® Polypropylene Cones deliver spectacular midrange clarity, punchy bass and high efficiency.
  • Polk Audio All-Weather Certified 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).
  • Engineered and 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.
  • Polk’s exclusive lightweight Dynamic Balance® Polypropylene Cones deliver spectacular midrange clarity, punchy bass and high efficiency.
  • Polk Audio All-Weather Certified 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).

Compare Polk Outdoor Speakers

This Product
Atrium 4
Atrium 4
Outdoor Speakers with 4.5" Drivers
£299
4.5" Dynamic Balance® polypropylene woofers
3/4" Anodized Aluminum Dome tweeter
Speed-Lock Mounting system
Quality sound for small-to-medium, outdoor spaces.
Atrium 6
Atrium 6
Outdoor Speakers with 5.25" Drivers
£479
5.25" Dynamic Balance® polypropylene woofers
1" Anodized Aluminum Dome tweeters
Speed-Lock Mounting system
Big, high-quality sound for medium-to-large, outdoor spaces.
Atrium 5
Atrium 5
Outdoor Speakers with 5" Drivers
£419
5" Dynamic Balance® polypropylene woofers
3/4" Anodized Aluminum Dome tweeter
Speed-Lock Mounting system
Big, quality sound for small-to-medium, outdoor spaces.
Atrium 8 SDI
Atrium 8 SDI
High-performance Outdoor Loudspeaker with 6.5" driver
£299
6.5" Dynamic Balance® polypropylene woofer
Dual 1" Anodized Aluminum Dome tweeters
Speed-Lock Mounting system
High-performance in medium-to-large outdoor spaces.
Atrium 4
Details & Specifications
  • Total Pieces 1
  • Cabinet Warranty 5 Years - Original Purchaser Only
  • Drivers Warranty 5 Years - Original Purchaser Only
  • Warranty Yes
  • Carton 1 4.31 kg
  • Qty Included Pair
  • Availability US    Internationally
  • Orientation • Horizontal
    • Vertical
  • Height 21.91 cm
  • Width 14.45 cm
  • Depth 16.99 cm
  • Weight 1.63 kg
  • Front Array Driver Complement • (1) 11.43 cm d (Round) - Mid/Woofer
    • (1)  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
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