Model: PRO-TW220 Type: Super Bullet Tweeter RMS Power: 225 Watts MAX Power: 350 Watts Diaphragm Material: Aluminum Sensitivity: 106dB Impedance: 4 Ohms Frequency Reponse: 2KHz - 20KHz Mounting Depth: 2.29" Cutout Diameter: 2.75" Replacement Diaphragm: PRO-TW220VC TOP OF THE LINE TWEETERS - Professional grade super tweeters that can handle high frequencies with ease. DS18 meticulously designed these tweeters to sound as good as they look. POWER YOU CAN COUNT ON - PRO-TW220 ferrite tweeter delivers out-of-this-world power, at 225 watts RMS and 350 watts Max at 4 ohms with build in capacitor filter. HIGH-QUALITY ALUMINUM FRAME AND DIAPHRAGM - If you like your highs crisp, bright, and loud, aluminum tweeters are exactly what you need. It's light, strong, and produces a bright sound at high frequencies. TAKE YOUR SYSTEM TO THE NEXT LEVEL - Get the most out of your system by upgrading to a super tweeter that gives you everything you're missing from your stock stereo. Discover what a high-end tweeter can do for you. 1" SUPER BULLET TWEETERS - Specifically designed Bullet dust cover to protect the voice coil and ensure that the highs cut through road noise and big bass.