Description

The Polk Audio 900-LS Vanishing Series In-Ceiling Speaker is engineered for audiophile-grade performance in a stealthy, nearly invisible form factor. This high-performance 3-way speaker features an innovative Cassini oval woofer, mounted behind the main driver array, delivering deep, rich bass while maintaining a compact design. A 3.25-inch Dynamic Balance® midrange driver ensures clear vocals and mid frequencies, while an advanced 0.75-inch ring radiator tweeter extends high-frequency response for lifelike details and precise imaging.

Designed to disappear into your ceiling, the 900-LS features Polk’s wafer-thin Sheer-Grille™, a magnetically secured grille that protrudes only 7mm from its surroundings. The ultra-small perforations ensure unimpeded sound dispersion, providing uniform audio coverage across the room. Polk’s Vanishing Series also includes custom audio controls, such as the reflective room compensation feature, which optimizes the high frequencies to counteract reflective surfaces, and a wall distance toggle switch to eliminate boominess when placed near walls.

With dual bandpass bass ports for improved low-frequency performance, and Polk’s patented Rotating Cam system for easy, secure installation, the 900-LS is the perfect choice for high-end home theaters or whole-home audio systems.

Features:

  • High-performance 3-way in-ceiling speaker
  • Cassini oval woofer positioned behind the driver array for extended bass response
  • 3.25-inch Dynamic Balance® midrange driver for vocal clarity
  • 0.75-inch ring radiator tweeter for precise high-frequency detail
  • Wafer-thin Sheer-Grille™ for an almost invisible, flush-mounted finish
  • Vanishing reflective room compensation feature for optimized high frequencies
  • Wall distance toggle switch to prevent boominess near walls
  • Dual bandpass bass ports for deeper, distortion-free bass
  • Easy drop-in installation with Perfect Fit templates and Rotating Cam system

Specifications:

FeatureSpecification
Brand & Model #Polk Audio 900-LS
OrientationIn-Ceiling
Driver Complement6″ Woofer, 3.25″ Midrange, 0.75″ Tweeter
ShapeRound
Frequency Response28 Hz – 33,000 Hz
Nominal Impedance8 ohms
Sensitivity (1W @ 1m)90 dB
Lower & Upper -3dB Limits40 Hz – 29,000 Hz
Recommended Amp Power10W – 150W
InputsGold-Plated Push Connectors
Grille Dimensions9.63″ Diameter
Speaker Dimensions8.19″ Diameter
Depth9.38″
Accessories IncludedSheer-Grille™ (White, Paintable)
Optional AccessoriesPB LC60i Pre-Construction Bracket (Sold Separately)
Carton Dimensions (H x W x D)11.25″ x 15″ x 13.5″
Weight11 lbs (4.99 kg)
WarrantyLifetime Warranty

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