The PRV Audio TW400Ti-Nd-4 SLIM Super Tweeter offers a smooth response and extremely high efficiency from high mid range through high range frequencies. This compact tweeter is part of a wide family from the ND Series, featuring a strong neodymium motor which increases its efficiency and lowers its weight and size dramatically without compromising any performance. GENERAL SPECIFICATIONS Nominal impedance 4 Ohm Nominal Power Handling* 60 Watts Continuous Program Power (RMS)** 120 Watts Max Peak Power*** 240 Watts Sensitivity 2.00V at 1m 105 dB Recommended High Pass CrossoverFor Full Power Handling 6000 Hz12db/oct Crossover Frequency Response at -10dB 4,500 - 20,000Hz Voice Coil Diameter 1.0" (25 mm) Voice Coil Wire CCAW Voice Coil Former Material Kapton Diaphragm Material Titanium Flux Density 1.45 T Magnet Material Neodymium Part Number: TW400Ti-Nd-4 SLIM