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

Horn Super T weeter

FT66H

Specifications

Impedance : 8 ohm
Reproduction Frequency Response

: 2.5kHz - 22kHz
S.P.L. : 105dB/W (m)
Music Power : 70W
Cutoff Frequency : 2.3kHz

Recommended Cross-over Frequency

: more than 3.5kHz
Magnet (alnico)W eight : 100g (0.22 lb)
Net Weight : 1.15kg (2.54 lb)

Configuration Example

FW405 + D1405 + H300 + FT66H

Coil 2.5mH

Capacitor

15µF

Capacitor 6.8µF

Coil

0.68mH

Capacitor 2.2µF

Capacitor

2.2µF

Coil 0.3mH

Attenuator R82B

Attenuator R80B

FW405

D1405

+ H300

FT66H

Frequency Response / Impedance

120
110
100

90
80
70
60

(dB)

50 100 200 500

1K

Impedance

2K 5K

10K

Dimensions & Mounting Information

83

4-Ø4.5

Ø100

Ø75

0º

30º

60º

20KHz50K

6.5

ohm

64

32

16

72.5

8
4

88