EASILY UPGRADE TO HIGH PERFORMANCE - The Pioneer A Series speaker sound design purposely matches the subwoofer and full-range loudspeakers to provide seamless and smooth sound characteristics with dynamic, high impact bass that lets you hear and feel the music. Pioneer's OPEN & SMOOTH sound concept provides a seamless and smooth transition between the midrange and tweeter drivers and delivers uniform off-axis frequency response optimized for automotive applications where one or more speakers are often aimed away from the listeners' ears. The A Series lineup expands flexibility and improves acoustic performance. The integrated inline crossover network allows for increased installation flexibility without the need of an outboard module. Included with the Pioneer A Series, are multi-fit installation adapters and tweeter mounts (when applicable). || EASY INSTALLATION - Included with the component system are 6" x 9" multi-fit installation adapters that expand flexibility and improve acoustic performance. Also included are tweeter mounts for surface mounting, flush mounting and specially designed multi-fit adapters for mounting in original equipment (OE) tweeter locations. With the integrated/in-line crossover network, you increase installation flexibility without the need of an outboard module. The included Pioneer multi-fit installation adapters can be easily modified to fit a variety of different applications by simply breaking off or cutting off the easy to remove tabs until the shape and mounting points match the original speaker. Replacing your factory speakers has never been easier. || OPEN & SMOOTH - Pioneer's OPEN & SMOOTH sound concept provides a seamless and smooth transition between the midrange and tweeter drivers and delivers uniform off-axis frequency response optimized for automotive applications where one or more speakers are often aimed away from the listeners' ears. || IN-CAR SIMULATOR - Pioneer's CarSoundFit app is a car sound simulator for experiencing in-car sound with your own smartphone. Hear the difference between original car speakers and Pioneer audio upgrades and immerse yourself within the sound quality Pioneer can offer for your vehicle. For a virtual listening demonstration of these and many other Pioneer car speakers, download the free Pioneer CarSoundFit app. ||