Compatible Vehicle Fitment Universal Tweeters Large aluminum dome tweeters deliver great sound and clear highs with increased reliability. External Component Crossover External Passive Cauer topology Butterworth filter crossover for a smooth transition of frequencies from midrange/midbass to the tweeter element designed into a compact crossover housing that can be easily hidden in the installation. Tweeter Hardware Mounting hardware included. | Specification Details Tweeter Size 1" Product Type Component Tweeter Series Formula Power Handling 150W Peak Impedance 4 Ohms Frequency Response 1.5 kHz – 25 kHz Sensitivity 92 dB Diaphragm Material Silk Voice Coil 1" Magnet Type Neodymium Crossover Requirement Requires high-pass crossover Mounting Flush / Surface Mount Quantity Pair Application Automotive / Mobile Audio