H 392 Response curve recorded in an anechoic chamber (Free-field, 4 pi radiation) with 0.5m microphone distance. The loudspeaker is mounted in a 0.6m by 0.8m baffle. OF NORWAY TWEETER 25TNF Cumulative spectral decay 25mm High Fidelity dome tweeter featuring high efficiency and smooth frequency response. The optimally shaped dome diaphragm is vacuum formed from a special soft material. The chassis is injection moulded from a high grade glass fibre reinfor NOMINAL IMPEDANCE 6 RECOMMENDED FREQUENCY RANGE Ohms 3000-25000 Hz VOICE COIL RESISTANCE VOICE COIL INDUCTANCE (EQUIVALENT) 0.05 mH SHORT TERM MAXIMUM POWER* 220 W LONG TERM MAXIMUM POWER* 90 W VOICE COIL HEIGHT CHARACTERISTIC SENSITIVITY (1W , 1m) 90 dB SPL MOVING MASS OPERATING POWER (96 dB SPL , 1 m) 4.0 W EFFECTIVE PISTON AREA 7.0 sq.cm LINEAR COIL TRAVEL ( p-p ) 0.5 mm NOTES AIR GAP HEIGHT 2.0 mm MAGNETIC GAP FLUX DENSITY 1.8 T FORCE FACTOR 3.5 N/A MAGNET WEIGHT 0.25 Kg TOTAL WEIGHT 0.55 Kg T25-002 26 mm VOICE COIL DIAMETER 1.5 mm 0.30 g 1400 Hz FREE AIR RESONANCE * IEC 268-5, VIA HIGH PASS BUTTERWORTH FILTER: APR.97 4.8 Ohms 3500 Hz 12 dB/oct.
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