Upgrade your car's factory stereo system with a set ... noise even in the harshest of environments, then these Polk Audio speakers are all you’ve been searching for. This product comes with ...

Sensitivity on these speakers is rated at 92 dB, while frequency response is 67 Hz to 21 kHz. Designed to work with OEM factory car audio systems or high-powered aftermarket head units and ...

The Polk Monitor XT90 Height Speakers feature Dolby Atmos certification, 3D sound capabilities, and comprehensive audio ...