140W max; 6.5" woven woofers are made from genuine DuPont(TM) Kevlar(R) fiber; Butyl rubber surrounds; 1" lens-free aluminized ferrofluid pivoting dome tweeter; Imp: 8ohm ; Sensitivity: 91dB @ 1W/1m; Freq resp: 40Hz-22kHz; High-temperature, polyimide voice coils; 3rd-order electro-acoustic crossover glass epoxy PC board, low DCR inductors, tight-tolerance metalized polypropylene capacitors & gold-plated terminals; Clamp-ring mounting system; Acoustically transparent scrim cloth grille; Cutout dim: 11.75"H x 8"W x 3.25"D; Overall dim: 12.75"H x 9.06"W; Pair; DuPont(TM) & Kevlar(R) are trademarks or registered trademarks of E.I. du Pont de Nemours & Company;