Fostex FT66H dimensions Features, Specifications, Frequency Response / Impedance

Horn Super Tweeter

FT66H

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

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)Weight : 100g (0.22 lb)

Net Weight : 1.15kg (2.54 lb)

Frequency Response / Impedance

120

110

100				0¼
90					ohm
80
				30¼	64
70					32
				60¼	16
60					8
			Impedance
(dB)					4
50Hz 100 200	500 1K	2K	5K 10K 20K	50K

Configuration Example Dimensions & Mounting Information

FW405 + D1405 + H300 + FT66H

Coil 2.5mH

Capacitor 15∝F

Capacitor 6.8∝F Coil 0.3mH

Coil Capacitor

0.68mH 2.2∝F

Attenuator R82B

Capacitor 2.2∝F

FW405

D1405

+H300

FT66H

83

6.5

4-Ø4.5

72.5 88

Attenuator R80B

Ø75