The Pyramid TW44 1" heavy duty super tweeter features a MAX power of 300 watts and a RMS power of 150 watts. Other features include the ferro fluid enhanced voice coil and the die cast aluminum frame, 4 8 impedance, 104dB sensitivity, 30 oz magnet structure, 2K 20kHz frequency response,2.25" mounting depth and crossover capacitor included. This tweeter is compatible with any woofer enclosure and could be installed in home/DJ applications as well! 1'' High Temperature Kapton Voice Coil 30 oz. Magnet Structure 3.125'' Diameter/2.25'' Mounting Depth 1 buy = 1 tweeter