McLaren Audio MLT300 Bullet 400-Watts Super Tweeter Size 3.5" H x 3" W Power 400 Watts rated power 200 Watts RMS SPL 106 dB Frequency Response 3KHz 25KHz Impedance 8 Ohms Diaphragm Material Die Cast Aluminum Diaphragm Replacement MLT-300D Frame Material Die Cast Aluminum . .