Fostex FT28D - Manual

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
Impedance : 8 ohm
S.P.L. : 90dB/W (m)
Music Power : 40W
Recommended Cross-over Frequency
: more than 2kHz
Reproduction Frequency Response
: 1kHz - 50kHz
Magnet Weight : 228.3g (0.503 lb)
Net Weight : 528g (1.164 lb)
Dimensions & Mounting Information
Dome Tweeter
FT28D
Configuration Example
Capacitor 4.7 µ F
Coil 1.8mH
Coil 0.5mH
Attenuator R80B
FW168
FT28D
FW168 + FT28D
Capacitor
6.8 µ F
60
70
80
90
100
110
120
(dB)
ohm
16
8
4
50 100 200 500 1K 2K 5K 10K 20K Hz 50K
60º
Impedance
30º
ш63 ш70
65
32.8
90
78
ш3.8 65
53