Polk Audio Signature Elite ES90

No, these are designed specifically to sit on top of your existing floor-standing or bookshelf speakers. They use upward-firing drivers to bounce sound off your ceiling, creating an immersive overhead effect without the need for drilling or mounting hardware.

While they are designed to match the aesthetic and sonic profile of the Polk Signature Elite series, they can be placed on top of any flat-topped speaker. Just ensure your existing speakers have enough surface area to support the 8.3-pound weight of the ES90 modules.

You will need an AV receiver that supports Dolby Atmos or DTS:X processing. The ES90s require an amplifier capable of handling 20-150 watts RMS, which is standard for most modern home theater receivers.

Height channels add a vertical dimension to your soundstage, which is crucial for modern cinematic formats. You will notice a significant improvement in spatial accuracy, such as the sound of rain, helicopters, or planes moving realistically above you rather than just around you.

Yes, once connected, you must run your receiver's room calibration software. This allows the system to recognize the new height channels and adjust the timing and volume levels to ensure the sound bounces correctly from your ceiling to your listening position.

These are specifically engineered as height-channel modules with an angled driver array designed for ceiling reflection. Using them as standard surround speakers will result in poor audio dispersion and is not recommended.