Can be planted in your landscaping, hung from your ceiling or the eaves, or installed anywhere you want to mix great sound with the great outdoors

Designed to Blend In
Safety and Security

The Subwoofer for All Seasons

With its 10" downward-firing long-throw dual voice coil driver, this heavy-duty all-weather outdoor subwoofer delivers deep bass to any outdoor space.

Great outdoor sound


Housed in a moulded and sealed acoustically ideal resin enclosure and marine-certified with IPX66 rating, our guarantee of years of weather-proof outdoor performance.

Dynamic Balance®

Massive 10-inch long-throw Dynamic Balance® driver technology eliminates driver distortion for deeper, cleaner bass even at higher volumes.

Capacitive Coupling Technology

Dual 2-inch voice coil design reproduces bass from both stereo channels, producing more power in the lower frequencies with the help of Capacitive Coupling Technology. You get big outdoor bass for big outdoor impact.

Key Technologies

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.

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).


All the details

The included grille protects the woofer and will hold up in the outdoor environment.

The included waterproof IP68 rated junction box easily connects other outdoor speakers and is approved for in-ground use.

200 Watt downward-firing subwoofer delivers earth-shaking bass.

Atrium Sub100

Details &

  • Total Pieces 1
  • Included Accessories • (1) Weatherproof Aluminum Grille • (1) Waterproof IP68 Rated Junction box • (4) Wire Nuts • (1) Owner’s Manual
  • Cabinet Warranty 5 years
  • Drivers Warranty 5 years
  • Original Purchaser Only Yes
  • Carton 1 14.75" (37.47 cm) h x 20.75" (52.71 cm) w x
    20.25" (51.44 cm) d - 20.25 lbs (9.19 kg)

  • Total Pieces 1
  • Subwoofer Array Driver Enclosure Type Acoustic Suspension with Color-Impregnated Resin Shell
  • Subwoofer Array Driver Complement • (1) 10" (25.4 cm) d (Round) Long-throw Dynamic Balance composite cone driver with dual voice coils and butyl rubber surround - Subwoofer - Voice Coil 2" (5.08 cm) d
  • Height 11" (27.94 cm)
  • Width 16.9" (42.93 cm)
  • Depth 16.9" (42.93 cm)
  • Weight 16.75 lbs (7.6 kg)
  • Nominal Impedance 8 ohms
  • Sensitivity (1 watt @ 1 meter) 88 dB
  • Lower and Upper -3dB Limits 50 Hz → 110 Hz
  • Recommended Amplifier Power Per Channel 10 watts → 200 watts
  • Peak Power Handling 200 watts
  • Midrange/Woofer Crossover Frequency 150 Hz
  • Power Handling (per channel) 10 watts → 200 watts
  • Mounting Type Security eyebolt
  • Available Orientations Horizontal
  • Mounting Type Keyhole Slots
  • Available Orientations Horizontal
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