6″ x 9″ Full Range Jensen TRIAX Speakers featuring an injection-molded polypropylene woofer cone, rubber surround, and a 20 mm piezo tweeter. Features: 6″ x 9″ TRIAX design Injection-molded polypropylene woofer cone Nitrile butadiene rubber surround 58mm Mylar® balanced dome midrange 20mm piezo tweeter Grilles included Magnet weight: 26.8 oz Sold in Pairs Specifications: Sensitivity: 89dB Frequency response: 50Hz – 20kHz Nominal impedance: 4 Ohm RMS power: 75 Watts Peak power: 375 Watts Dimensions: Top-mount depth: 3.11″ Bottom-mount depth: 3.56″ Cut-out diameter: 5.59″ x 8.70″ Mounting height: 0.87″ Specifications SPEAKER SIZE: 6" x 9" SPEAKER DESIGN: 3-Way RMS POWER: 75 Watts GRILLES: Yes NOMINAL IMPEDANCE: 4 Ohms SENSITIVITY: 89dB FREQUENCY RESPONSE: 50 Hz ~ 20 kHz TWEETER MATERIAL: Piezo TWEETER SIZE: 20mm MIDRANGE SIZE: 58mm MIDRANGE MATERIAL: Mylar WOOFER MATERIAL: Injection Molded Black Polypropylene SURROUND MATERIAL: Rubber MAGNET SIZE: 26.8 oz CUTOUT DIAMETER: 5.59" x 8.70" TOP-MOUNT DEPTH: 3.11" BOTTOM-MOUNT DEPTH: 3.56" MOUNTING HEIGHT: .87"