Polk Audio Atrium 4: Durable and High-Fidelity Outdoor Speaker

Build & Sound Quality
The Polk Audio Atrium 4 embodies durability and advanced sound engineering in a compact and elegant design. Constructed with a tough, mineral-filled polypropylene casing and an aluminum grille that resists rusting, this speaker is not only lightweight but also robust. It comes equipped with all necessary brackets and fixings, facilitating an effortless installation through its Speed Lock mounting system featuring keyhole slots. The Atrium 4 can be angled up to 45 degrees in either direction, ensuring optimal audio directionality with minimal visual impact.

Incorporating Power Port Technology, the Atrium 4 enhances your listening experience by smoothly channeling air flow from the speaker into your outdoor spaces, producing deep and undistorted bass. This technology also reduces turbulence and distortion, offering a clear and powerful sound performance.

Weather Resistance
Designed with 'military-grade' components, the Atrium 4 stands up to any weather condition. Unlike other speakers that may require overhead shelter, these can be freely installed in open spaces—resistant to extreme temperatures, salt-fog, heavy rain, and harmful UV rays, ensuring reliability and longevity in any outdoor setting.

Key Features
Colors: Available in Black or White
Includes Bracket and Fixings for easy installation
Durable, Hard-wearing Housing and UV-Protected
Flexible Mounting: Can be positioned vertically or horizontally
Enhanced Bass with Power Port Technology
Driver Complement: Features a 4.5" mid/woofer and a 0.75" tweeter
Frequency Response: Ranges from 75 Hz to 25,000 Hz
Nominal Impedance: 8 ohms
Sensitivity: 89 dB (1 watt @ 1 meter)
Mounting: 180° Speed-Lock system with Keyhole Slots
Recommended Amplifier Power: 10 watts to 80 watts per channel

Dimensions
Height: 8.625 inches
Width: 5.688 inches
Depth: 6.688 inches
Weight: 3.6 lbs

The Polk Audio Atrium 4 is the perfect choice for audiophiles seeking a discreet yet powerful outdoor speaker system that combines exceptional build quality with superior sound fidelity.