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Dome Tweeter FT207D Features • 20mm UFLC soft dome tweeter • Newly designed frame made of nylon resin with gravity material for self vibration suppression • Unique appearance shortens the distance to woofer for excellent sound image & position Specifications & Thiele/Small Parameters mm / 0.8 in Size : 20 Voice Coil Diameter mm / 0.8 in : 20 Cast / Stamped : Ω Impedance : 8 Reproduction Frequency Response : 2kHz - 40 kHz Sound Pressure Level dB/W(m) : 90 W Rated Input : 20 W Music Power : 60 Magnet Material : Ferrite Magnet Weight (main) : 103 g / 0.227 lb (cancel) : g / 0.176 lb 80 Net Weight 390 g / 0.860 lb Frequency Response / Impedance 120 110 100 90 Ω 64 30 32 16 600 8 4 20K 50K 80 0 70 60 (dB) 50 Hz 100 Impedance 200 500 1K 2K 5K 10K Dimensions & Mounting Information Configulation Example R 41.5 Inductor 1.0mH FW137 (34.4) Capacitor 6.8µF Capacitor 4.7µF FT207D Inductor 0.5mH (ø69.5) (79) Attenuator R80B 95 3-R47.5 3-ø4.2 hole Inductor 1.0mH Capacitor 6.8µF Capacitor 4.7µF FW167 FT207D Inductor 0.5mH Attenuator R80B Overall Diameter : Baffle Hole Diameter : Depth : 89.4 mm / 3.5 in mm / 2.8 in 72 34.4 mm / 1.3 in