2.75" High-Compression 4 Ohm Titanium Bullet Tweeter The Seismic Audio Super Bullet Tweeters are the ideal addition to your car audio system. These high compression aluminum tweeters are very efficient and offer controlled high-frequency dispersion which is great for high volume output. If loud and crystal-clear high-end frequency is what your system is missing, these bullet tweeters are for you. Specifications Model: SA-TR10 2.75" High-Compression Titanium Bullet Tweeter Power Rating: 120 Watts RMS | 240 Watts Peak Voice Coil: 1" Kapton Voice Coil Impedance: 4 Ohms‚ Magnet: 5.40 Ounce Sensitivity:‚ 101 dB Frequency Response: 1.5kHz - 20kHz Die-Cast Aluminum Basket Dimensions: 3.77" Outer Diameter | 2.75" Cutout Diameter | 1.42" Mounting Depth