4.5 Inches Drivers And .75 Inches Tweeters
4 1/2" (11.43cm) Dynamic Balance long-throw mineral-filled polypropylene cone driver with butyl rubber surround pumps out the surprising bass response from a compact design.
3/4" (19mm) Dynamic Balance anodized aluminum dome tweeter with rubber surround and neodymium magnet for better power handling and smoother response.
10-80W Per Channel
The perfect material performance, eliminating driver and tweeter 'artifacts' for more realistic sound reproduction at high and low volume levels.
Polk Audio All-Weather Performance, 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.)Atrium Speakers can effortlessly withstand the worst mother nature can dish out, whether it's extreme temps or heavy rains.
180 Degrees Speed-Lock Mounting System
Speed-Lock Mounting, the easiest, fastest, and safest of all mounting systems.
Simply mount the bracket and click the speaker into place. Aim it and tighten it down.
Broad Coverage Baffle Design Fills Large Outdoor Spaces
Broad coverage baffle design fills a large open outdoor space with big, full-range sound.
The Atrium 4 has a more steeply-angled baffle design that maximizes critical mid-and high-frequency dispersion over a large area, without sacrificing detail.
Aluminum With Stainless Steel And Brass Hardware
Gold-plated 5-way binding posts for the most secure, dependable hookups.
Aluminum grilles and bracket, with stainless steel and brass hardware: No rust. Ever.
- Brand: Polk Audio
- Style: Atrium4
- Dimensions: 7.5 x 6.3 x 9.5 inches
- Weight: 3.6 lbs
- Color: Black
- Speakers Maximum Output Power: 80 Watts
- Mounting Type: Wall Mount
- Speaker Type: Outdoor
Additional Features: Gold-plated connectors, Weather resistant
- Detachable Grilles: Yes
- Frequency Response: 75 - 25000 Hz
- Nominal Impedance: 8 Ohn
- Recommended Amplifier Power: 10 Watt
- Sensitivity: 89dB
Body Material: Polypropylene