The Focal ISU690 is a 2-way separate speaker kit designed to bring high-fidelity sound to your vehicle, specifically tailored for a seamless fit in certain Ford and Toyota models. These speakers utilize a Polyglass® cellulose composite for the 6x9 inch woofers, which helps maintain a balanced sound profile across a frequency range of 55 to 21,000 Hz. To handle the high frequencies, the kit includes inverted tweeters made from an aluminum-magnesium alloy, ensuring clear and precise treble reproduction. With an RMS power of 80 W and a maximum output of 160 W, this system provides a robust audio experience while maintaining a high sensitivity of 93.6 dB. The design focuses on ease of installation, featuring a slim profile and integrated 6 dB/oct crossovers that allow the components to fit into original factory locations without extensive modification. The woofers require a mounting depth of 83.5 mm, while the compact tweeters fit into a 44.4 mm diameter opening with a shallow depth of 16.75 mm. This kit comes with two woofers and two tweeters, though it is worth noting that protective grilles are not included.