DS18 PRO 3" High Compression Neodymium Slim Super Bullet Tweeter, 240 Watts Max Sold each 120W RMS/240W Max 1 " Titanium Compression Tweeter Titanium Diaphragm Aluminum Bullet 4 Ohm Impedance Neodymium Magnet Frequency Response: 3 kHz - 20 kHz Recommended HI Pass Crossover: 3 KHz Sensitivity: 104dB Mount Depth: 1.61" Overall Diameter: 1.87"