Fostex FT66H User manual

Features
♦Ring diaphragm Tweeter
♦8 ohm impedance
♦2.5kHz to 22kHz frequency re-
sponse
♦105dB sensitivity at 1W/1m (3.3ft)
♦1.15kg (2.54 lb) net weight
Frequency Response / Impedance
Specifications
Impedance : 8 ohm
S.P.L. : 105dB/W (m)
Music Power : 70W
Recommended Cross-over Frequency
: morethan3.5kHz
Reproduction Frequency Response
: 2.5kHz - 22kHz
Magnet (alnico)Weight : 100g (0.22 lb)
Net Weight : 1.15kg (2.54 lb)
Dimensions & Mounting Information
Horn Super Tweeter
60
70
80
90
100
110
120
(dB)
ohm
64
32
16
8
4
50 100 200 500
1K
2K 5K
10K
20K
Hz 50K
60º
Impedance
30º
0º
FT66H
Cutoff Frequency : 2.3kHz
4-Ø4.5
Ø100
83
88 6.5
72.5
Ø75
Configuration Example
D1405
+ H300
FT66H
FW405
Attenuator R80B
Attenuator R82B
Capacitor 2.2µF
Coil 0.3mH
Capacitor
2.2µF
Coil
0.68mH
Capacitor 6.8µF
Coil 2.5mH
Capacitor
15µF
FW405 + D1405 + H300 + FT66H