The Signature Elite ES90 is a height module speaker designed to bring true 3D sound to your home. Built with Polk Audio’s advanced technology, it adds vertical sound effects that make Dolby Atmos and DTS:X come alive. From the swoosh of an airplane above to the subtle echo in a concert hall, the ES90 makes your movies, music, and games feel more immersive than ever before. This compact module is designed to sit on top of compatible Polk tower or bookshelf speakers, blending seamlessly into your system. Its precision-angled drivers project sound upward to reflect off the ceiling, creating a rich overhead audio experience. At Theatre Zone, we recommend the ES90 for anyone who wants to expand their surround setup and enjoy the full thrill of modern cinematic sound. Key Features Custom-angled 4″ mica-reinforced woofer for precise upward sound projection 1″ Terylene dome tweeter for crisp, detailed highs up to 40 kHz Dolby Atmos and DTS:X compatible for realistic height channels Easy placement on top of Signature Elite ES50, ES55, ES60, or ES20 Hi-Res Audio certified with Polk’s Dynamic Balance technology Compact, stylish design to match the Signature Elite line Why Choose It Adds true height sound — hear effects and music above you for full immersion Seamless integration — designed to fit on Polk Signature Elite speakers Compact design — small footprint with big performance Perfect for upgrading — expand your home theater into a 3D audio experience Specifications Specification Detail Speaker Type Height (topper) Quantity Included Pair Product Dimensions (W x H x D) 7.5 × 7.3 × 12.1 in. (189 × 186 × 306 mm) Weight (one speaker) 8.3 lbs (3.76 kg) Tweeter 1 in. (2.5 cm) Terylene dome Midrange/Midbass 5.25 in. mica-reinforced polypropylene driver Crossover Frequency 2200 Hz Frequency Response -10dB Frequency Limits: 52 Hz – 40 kHz -3dB Frequency Limits: 142 Hz – 26 kHz Nominal Impedance 4Ω (8Ω compatible) Recommended Amplifier Power 20–150W per channel Sensitivity 85 dB Inputs 1 pair of 5-way binding posts (gold) Certifications Dolby Atmos Speaker Compatibility Signature Elite Series: ES55, ES60, ES20 Signature Series: S20, S55, S60 Package Dimensions (L x W x H) 17.8 × 16.3 × 11.8 in. (45.1 × 41.3 × 29.9 cm) Package Weight 20.4 lbs (9.25 kg) Details of Signature Elite ES90 Owner’s Manual (PDF) Elevate Your Sound The Signature Elite ES90 is the perfect way to unlock the full potential of Dolby Atmos and DTS:X. Its upward-firing design adds overhead detail that turns movies, concerts, and games into breathtaking experiences. With Polk Audio’s engineering and simple setup, it is the easiest upgrade you can make for next-level home theatre sound. Shop today at Theatre Zone and hear the difference that true height audio can bring.
