Fostex FE83 User manual

Features
♦80mm (3 in) cone type full range
♦8 ohm impedance
♦fo to 20kHz frequency response
♦88dB sensitivity at 1W/1m (3.3ft)
♦0.364kg (0.802 lb) net weight
Frequency Response / Impedance
Specifications
&
Thiele/Small Parameters
Impedance : 8 ohm
Minimum Frequency Response
: 140Hz
S.P.L. : 88dB/W (m)
Rated Input : 2W
Music Power : 7W
Equivalent Diaghram Radius
: 30mm (1.18 in)
Reproduction Frequency Response
: fo - 20kHz
Equivalent Mass : 1.15g (0.003 lb)
Magnet Weight : 140g (0.309 lb)
Net Weight : 0.364kg(0.802lb)
Fs : 140Hz
Re : 6.9 ohm
Qes : 0.9
Qts : 0.72
Vas : 1.11 L
Xmax : 0.4mm (0.016 in)
Dimensions & Mounting Information
FE-series
no : 0.33%
Qms : 3.5
FE83
20 50 100 200 500
1000
2000 5000
10000
20000
50
60
70
80
90
100
110
(dB)
Hz
ohm
64
32
16
8
4
Impedance
60 º
30 º
83
ø71
ø60
21
44
3.8
RED.DOT
83
43
R
4-4 x 6