Pioneer’s A-series speakers offer improved bass response and high frequencies in an easy to install package, and with a custom fit adapter you have more flexibility with your installation. Pioneer's Open & Smooth sound delivers smoother, more expansive sound, and with the CarSoundFit app, you can have an all new in-car sound experience right at your fingertips. The A-series speakers are designed to replace the vehicle’s factory installed speakers and produce improved sound quality at exceptional value. Easily Upgrade to High Performance Pioneer’s A-series 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. Easy Installation Included with the speaker are original equipment (OE) 6½ x 8½ (Ford & Mazda) custom-fit installation adapters that optimize fitment in applicable original equipment (OE) speaker locations for improved acoustic performance. 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. CarSoundFit App Pioneer’s CarSoundFit app is actually a car sound simulator for experiencing in-car sound with your own smartphone. Hear the difference between original car speakers and different Pioneer audio upgrades: convince yourself of the level of 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.