Polk Atrium Series: 8 SDI
Flagship all weather loudspeaker with single/dual input switch and dual tweeter array that lets you work the speaker as a single high/performance stereo loudspeaker, or L/R speaker in a high-performance stereo pair. It’s time to get that indoor sound you love - all from an outdoor loudspeaker you can put anywhere around your home.
- All-Weather certified
- 6.5" Dynamic Balance® polypropylene woofer
- Dual 1" Anodized Aluminum Dome tweeters
- Speed-Lock Mounting system
- Works either as a single Stereo speaker or in Mono to use in a traditional L/R Stereo pair
- Polk's patented Power Port® design for enhanced bass
- White is paintable to match your own outdoor decor
Highlights & Key Technologies
All-Weather Certified
Made to withstand the elements, these speakers are built to last and produce rich, lifelike, space-filling sound—no matter the weather. 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).
Dynamic Balance® Drivers
Whether you’re lounging in your favorite chair, hosting a BBQ, or spending time with the family outdoors, you won’t miss a single word of your favorite tunes. The Atrium Series outdoor speakers deliver crisp, powerful vocals—without distortion. Their Patented Dynamic Balance® and Klippel Optimization Technologies ensure optimal material performance, eliminating driver and tweeter “artifacts” for more realistic sound reproduction at high and low volume levels.
Speed-Lock™ Mounting System
Sprucing up the patio or backyard is a cinch with easy, secure one-handed installations even in difficult locations. The Speed-Lock Mounting System ensures easy, safe one-handed installations and no-slip setting of the speaker angle. This greatly simplified mounting procedure means fewer parts and a quicker setup.
PowerPort® Bass Venting
You’ll experience space-filling sound in any outdoor area, porch, sunroom, or deck. Polk’s patented water-resistant PowerPort® efficiently adds 3dB of big, realistic, musical bass output. And when combined with its anodized aluminum tweeter domes, this speaker not only delivers powerful, high-quality sound output, but excellent midrange clarity.
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.
Details & Specifications
Quantity Included: 1 Speaker
Driver Enclosure Type: Durable, mineral-filled polypropylene cabinet design
Mid-Bass Driver: (1) 6.5" (16.51 cm) d (Round) Dual voice coil driver with Dynamic Balance aerated polypropylene cone with rubber surround - Mid/Woofer
Tweeter: (2) 1" (2.54 cm) d (Round) Anodized aluminum dome with neodymium motor structure - Tweeter
Total Frequency Response: 45 Hz → 27,000 Hz
Nominal Impedance: 8 ohms
Recommended Amplifier Power: 10-125W x 2 Continuous
Sensitivity (1 watt @ 1 meter): 91 dB
Mounting Type: Flush 180° Speed-Lock mounting system with Keyhole Slots
Mounting Orientation: Vertical or Horizontal
Cabinet Warranty: 5 years
Drivers Warranty: 5 years
Original Purchaser Only: Yes
Dimensions (HxWxD): 12.875" (32.7 cm) x 8.5" (21.59 cm) x 9.188" (23.34 cm)
Weight: 9.7 lbs (4.4 kg)
Carton Weight: 13.5 lbs (6.12 kg)
IGNORE: 8SDI, 8-SDI