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Fostex FE103 User Manual

Fostex FE103
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Features
100mm (4 in) cone type full range
8 ohm impedance
fo to 18kHz frequency response
89dB sensitivity at 1W/1m (3.3ft)
0.63kg (1.389 lb) net weight
Frequency Response / Impedance
Specifications
&
Thiele/Small Parameters
Impedance : 8 ohm
Minimum Frequency Response
: 80Hz
S.P.L. : 89dB/W (m)
Rated Input : 5W
Music Power : 15W
Equivalent Diaghram Radius
: 40mm (1.575 in)
Reproduction Frequency Response
: fo - 18kHz
Equivalent Mass : 2.7g (0.006 lb)
Magnet Weight : 193g (0.425 lb)
Net Weight : 0.63kg (1.389 lb)
Fs : 80Hz
Re : 7.1 ohm
Qes : 0.38
Qts : 0.33
Vas : 6.89 L
Xmax : 0.35mm (0.014 in)
Dimensions & Mounting Information
FE-series
no : 0.88%
Qms : 2.17
FE103
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
107
ø80
ø92
2.6
26.6
45.6
RED DOT
4-5
57.5
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Fostex FE103 Specifications

General IconGeneral
Nominal Diameter4 inches
Impedance8 ohms
Magnet TypeFerrite
Voice Coil Diameter20 mm
TypeFull-range
Sensitivity89 dB

Summary

Speaker Features

Cone Type and Size

Specifies the speaker cone as a 100mm (4 inch) full range type.

Impedance

Details the speaker's impedance, rated at 8 ohms.

Frequency Response Range

Indicates the operational frequency range from fo to 18kHz.

Sensitivity

States the speaker sensitivity as 89dB at 1W/1m (3.3ft).

Net Weight

Provides the net weight of the speaker as 0.63kg (1.389 lb).

Specifications and Thiele/Small Parameters

Electrical and Mechanical Parameters

Lists key specifications including Impedance, S.P.L., Rated Input, Music Power, Fs, Re, Qts, Qms, Qes, Vas, Xmax, and 'no'.

Physical Dimensions and Mass

Details Equivalent Diaghram Radius, Equivalent Mass, and Magnet Weight.

Frequency Response and Impedance Graph

Performance Curves

Presents a graph illustrating the speaker's frequency response and impedance characteristics across various frequencies.

Dimensions and Mounting Information

Diagrammatic Representation

Provides a visual guide with dimensions and mounting details for the speaker.

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