Pioneer TS-A653CH 6-1/2” 2-Way Component SpeakersHighlights & Specifications:handles up to 85 watts RMS (370 watts peak power)frequency response: 33-58,000 Hzsensitivity: 91 dBimpedance: 4 ohmswoofer top-mount depth: 2-3/8"component speaker system includes 2 woofers and 2 tweeters6-1/2" injection molded polypropylene and aramid fiber/mica-reinforced composite woofer cone with elastic polymer surroundseparate 13/16" polyethermide tweeterinline crossover network (6 dB @ 2800 Hz)flush- and angle-mount tweeter mounting hardware includedFeatures:OPEN & SMOOTH sound concept delivers smooth frequency response and wide dispersion for superior off-axis listeningAramid fiber and Mica reinforced IMP cone provides fast response and precise bassPFSS (Progressive Flex Suspension System) balances between deep bass and high power handling *Patent technologyPolyetherimide (PEl) dome diaphragm provides clear mids and highs with low distortionsMulti-Fit adapters expand installation flexibility and improve acoustic performances