4" Super Tweeters?? 1.5"High Temperature Kapton Voice Coil</br>Dimond Chrome Cutting Finish?? Die Cast Aluminum Frame</br>Peak Power Handling- 1500W(Per Tweeter)/ RMS Power Handling: 450W (Per Tweeter)</br>Impedance: 8 Ohms / Tweeter Size: 4"Square</br>Ferro Rluid Enhanced Voice Coil/ Sensitivity: 109 dB/ Frequency Response: 3k-22kHz</br></br>Product Description</br></br>The Ignite Pro 4" Titanium Build Super Tweeter is a sure addition to any sound enthusiasts system needs.</br><br/>http://www.amazon.com/gp/product/B00ZWLWGSQuu