The DS18 SQTW Tweeter is designed to add high output and high frequency response to any speaker system. The titanium, ring-radiator diaphragm combines with the durable, yet light weight, Kapton voice coil former for sensitivity levels of up to 88 dB from 2,000 to 20,000 Hz. Not only does this driver look as good as it sounds it's also able to take a huge amount of power due to its 1.10" diameter Silk Dome voice coil. Up to 120 watts of power handling are on tap with the most demanding professional audio, high output home audio, and high SPL car audio systems. Mounting hardware included.