Selenium Super Tweeter 100 W - ST300SLF

Supertweeter for outstanding detail & clarity in high frequencieswithou t harshness. The ST300-SLF. may be used individually in lower power systems or arrayed for increased coverage & SPL in higher power systems.The bullet-shape horn design offers a longer throw 40 x 40 dispersion.The cast aluminum housing is stable & durable.The phenolic annular diaphragm is long-lasting costeffectiveand more natural-sounding than metallic diaphragms.The use of high-temperature materials & adhesivesimproves power handling & produces exceptionally highacoustic output.A precisely engineered diaphragm structure andalignment mechanism for easy reliable cost effectiverepair in case of diaphragm failure. ST300-SLF: Product without Selenium / Professionallogo on the face plate. Nominal impedance. 8 OHMS. Minimum impedance @ 8 500 Hz . 6.9 OHMSPower handling. Musical Program (w/ xover 5 000 Hz 12 dB/oct)1 . 50 W. Musical Program (w/ xover 8 000 Hz 12 dB/oct)1 . 100 W. Sensitivity (2.83V@1m) averaged from 5 to 15 kHz. 108 dB SPL. Frequency response @ -6 dB. 3 500 to 20 000 Hz. Sound dispersion (H x V) . 40 x 40 degrees. Diaphragm material . Phenolic. Voice coil diameter . 46 (1.8) mm (in). Re . 6.1 W. Flux density . 1.70 T. 1. Musical Program= 2 x W RMS. WARNING: Must be connected w/an appropriate crossover. ADDITIONAL INFORMATION. Magnet material . Barium ferrite. Magnet weight . 440 (15) g (oz). Magnet diameter x depth. 102 x 14 (4.02 x 0.55) mm (in). Magnetic assembly weight . 1 280 (2.82) g (lb). Housing material . Aluminum. Housing finish . Black epoxy. Magnetic assembly steel finish. Zinc-plated. Voice coil material. Copper. Voice coil former material . Polyimide (Kapton). Voice coil winding length. 2.9 (9.5) m (ft). Voice coil winding depth. 2.2 (0.09) mm (in). Wire temperature coefficient of resistance (a25). 0.00356 1/C. Volume displaced by tweeter. 0.7 (0.025) l (ft3). Net weight. 1 700 (3.75) g (lb). Gross weight. 1 800 (3.97) g (lb). Carton dimensions (W x