Features 1.PROFESSIONAL DESIGN: HiFi super tweeter can easily handle high frequencies. Maximum power 20W, impedance 4. frequency, response range 3KHz?33KHz. 2.SUPER TWEETER: Metal shell tweeter makes the most of your system, providing you with everything that is missing in stereo speaker. 3.USING METHOD: DIY all kinds of panels, fixed in the panel after installed into the speaker body, car, and other scenes. Or directly fixed in the speaker body, etc. 4.HIGH TEMPERATURE RESISTANT: Diaphragm using high temperature resistant materials, reduce the deformation factor amplitude frequency response, wide frequency response high linear impedance. 5.WIDE RANGE OF APPLICATION: Black super tweeter wide range of applications, ideal for studio, multimedia, automotive, home, etc. specificationItem Type: Super Tweeter Material: Metal Model: AMT 40 Rated Impedance: 4 Ohm 15% DC Resistance: 3.6 Ohms 15% Frequency, Response Range: 3KHz-33KHz Sensitivity: 90dB3db Power Handling: 10W Maximum Power: 20W Recommended X Over: Situation3KHz-4KHz Product Size: Approx. 40x40x20mm / 1.6x1.6x0.8in Color: Black PackageList1 x SuperTweeter Note1. Tweeter access must be added capacitors or crossover to prevent burnout, positive and negative level lines can not touch. 2. Please allow some error due to manual measurement.