Polk Audio 900LS In-Ceiling Speaker

Polk Audio


  • Three-way speaker design
  • Dual-port bandpass enclosure for better bass response
  • Handles up to 150 watts
  • Paintable Sheer-Grille? for stealth installation


A real standout ? but practically invisible
Polk’s Vanishing? Series 900-LS in-ceiling speaker is designed to stay out of sight and out of mind…until you hear the rich, detailed sound it produces. This high-performance speaker hides away in your ceiling, which means you can enjoy great sound in rooms where regular free-standing speakers are an awkward fit.

Advanced 3-way design
The secret to the 900-LS’s compact cutout size lies in Polk’s innovative “Cassini Oval” driver design, which positions an oval-shaped woofer at an angle behind the midrange and tweeter array, in a built-in dual-ported bandpass enclosure. The woofer’s increased surface area and rigid cast basket combine for deep musical bass. This speaker also features Polk’s own advanced version of the classic “ring radiator” tweeter for smooth, detailed highs, along with a 3-1/4″ Dynamic Balance midrange driver, for accurate response across a wide frequency range.

SKU: 900LS Category:
Weight 4600 g
Dimensions 390 × 340 × 280 mm

Frequency Response 40-29,000 Hz (-3dB)
Tweeter 3/4″ ring radiator
Midrange Speaker 3-1/4″ Dynamic Balance®
Woofer 6″ x 9″ Dynamic Balance
Sensitivity 90 dB
Impedance 8-ohm
Power Range (Watts) 10-150


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