JBL ST304-8 Selenium St304 Pa Super Tweeter 80 Watts High Sensitivity 8-Ohms - ST304 || Type: Super Tweeter || RMS Power: 40 Watts || Ohms: 8 Ohms || Voice Coil || Diameter: 1.8 Inch || Diaphragm: Phenolic || Color: Black || Tweeter Magnet: Ferrite || Frequency: 3.500 to 18.000 Hz || General Specifications || Impedance (ohms) - 8 Ohms || RMS (W) - 40 || Musical Program (W) - 80 || SPL 1W @ 1m (dB) - 106 || Resp. Frequência @ -10dB (Hz) - 3.500 to 18.000 || || General Specifications || Voice Coil Diameter - 1.8 (46) || Sound Dispersion HxV - 40° x 40° || Magnet weight - 11 (320) || Diaphragm - Phenolic || Housing material - Plastic || || Original JBL / Selenium ST304 Super Tweeter. : Ideal super tweeter when the reproduction of high frequencies must define the instruments, || Recommended for PA systems, stage monitors and most sound reinforcement systems in general.Extremely high sensitivity and lower distortion.