Midrange/Tweeter Compression Horn Driver - Sensitivity:103db 1W/1M.Titanium Diaphragm - 8 Ohm Impedance.1.5'' (44.4mm) Flat Aluminum Voice Coil - 120 Watts RMS/240 Watts Peak.13.5 oz Magnet Structure - Terminals 205 Type.Frequency Response:1500Hz-20KHz - Fits Horns with 1 3/8'' x 18 TPI Threads This 1.5” horn driver may be small, but it packs a big punch, providing 240 watts peak power. It’s all because of the 13.5 oz. neodymium magnet with titanium diaphragm, ultimately achieving a frequency response of 1500 Hz to 20 kHz. The 1.5” flat aluminum voice coil provides rich mids and sweet highs. 205-type terminals, 8 ohm impedance. Fits horns with 1 3/8” x 18 TPI threads.