1" Aluminum Bullet Super Tweeter Specifications RMS Power Handling: 75 Watts PEAK Power Handling: 150 Watts Frequency Response: 3 kHz - 23 kHz SPL @ 1w/1m: 102dB System Impedance: 4-Ohm Magnet Weight: 10 oz Structure Weight: 20 oz Cutout Diameter: 3.00"(7,62cm) Mounting Depth: 1.50"(3,81cm) Features • 1" High Temperature Kapton Voice Coil • Aluminum Diaphragm • Cast Aluminum Frame • Packed in Pairs with Mylar Bass Blocking Capacitors