Super Tweeter Selenium ST400 Trio White 8 Ohms

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. Nominal impedance: 8 Ohms Minimum impedance 9,400 Hz: 7.8 Ohms WARNING: Must be connected with an appropriate crossover. Music program power using crossover: HPF 5,000 Hz - 12dB/oit -:200 W, HPF 8,000 Hz - 12dB/oit-300 W Sensitivity 2.83V 1m averaged from 6 to 15 kHz 111 dB SPL Frequency response -10 dB:. 4,000 to 20,000 Hz Sound dispersion H x V:40 x 40 degrees Diaphragm material: Phenolic Voice coil diameter: 42 1.6 mm in Flux density: 1.70 T Magnet material:Barium ferrite Magnet weight: 470 16,5 g oz Magnet diameter x depth:102 x 14 4.02 x 0.55 mm in Magnetic assembly weight: 1,200 2.64 g lb Housing material:Aluminium Housing finish: Machined, painted Voice coil material: CCAW Voice coil former material: Polyimide Kapton Voice coil winding length: 2.2 7.2 m ft Voice coil winding depth: 2.0 0.08 mm in Wire temperature coefficient of resistance a25 . 0.00356 1/ DegreesC Net weight: 1,690 3.13 g lb Gross weight:1,740 3.72 g lb Carton dimensions W x D x H . 12.0 x 14.0 x 10.0 4.7 x 5.5 x 3.9 cm in Number of bolt-holes: 4 Bolt-hole dimensions: .4 x 5.5 0.16 x 0.21 mm in Distance between bolt-holes H x V 86 x 91 3.38 x 3.59 mm in Baffle cutout diameter front mount:106 4.17 mm in Connectors: Push terminals Polarity: Positive voltage applied to the positive terminal red gives diaphragm motion toward the horn throat