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Dome Tweeter FT28D Features ♦Dome Tweeter ♦8 ohm impedance ♦1kHz to 50kHz frequency response ♦90dB sensitivity at 1W/1m (3.3ft) ♦0.528kg (1.164 lb) net weight Frequency Response / Impedance Specifications 120 : 8 ohm Reproduction Frequency Response : 1kHz - 50kHz S.P.L. : 90dB/W (m) Music Power : 40W Recommended Cross-over Frequency : more than 2kHz : 228.3g (0.503 lb) : 528g (1.164 lb) Configuration Example 90 80 30º 70 60 (dB) 50 Hz 100 200 65 10K 20K 50K ø3.8 FT28D 78 Capacitor 4.7µF 1K FW168 53 Capacitor 6.8µF 500 Impedance 2K 5K Dimensions & Mounting Information FW168 + FT28D Coil 1.8mH ohm 16 8 4 60º ø63 ø70 Magnet Weight Net Weight 110 100 65 Impedance Coil 0.5mH Attenuator R80B 90 32.8
