Fostex FW137 Specifications

Features
• Kenaf-Cellgaia hybrid cone
• Reasonable Qts value for easy
bass-reflex enclosure design
• Newly designed aluminum die-
cast frame
• Ferrite magnet & repulsion type
magnet shielded circuit

Specifications

&
Thiele/Small Parameters
Size : 130
Voice Coil Diameter
: 30.4
Cast / Stamped :
Impedance :
Reproduction Frequency Response
:fs -
Sound Pressure Level
: 87
Rated Input :
Music Power :
Magnet Material :
Magnet Weight
(main) : 226
(cancel) : 152
Net Weight 1,495
a :
Sd : 0.0095
Zn :
Fs :
Re :
Le :
0.067
Qms :
3.58
Qes :
0.57
Qts :
Mms : 11.7
BL : 7.06
Vas : 10.202
Xmax :
Eff/η0 : 0.24
Cms : 0.0008
EBP : 96.491
mm / 5 in
mm / 1.2 in
Frequency Response / Impedance
Cast
8 Ω
110
8 kHz
100
90
dB/W(m)
80
25 W
70
75 W
60
Ferrite
50
(dB)
g / 0.498 lb
20
g / 0.335 lb
g / 3.296 lb
Dimensions & Mounting Information
55 mm
2
m
8 Ω
55 Hz
Ω
7.4
mH
0.5
g
Telsa/m
L
1 mm
%
mm/N
Low Flux Leakage Woofer
FW137
Impedance
Hz 50 100 200 500
5-ø4.2 hole
Overall Diameter :
Baffle Hole Diameter
Depth
0
60
30
1k 2k 5k 10k 20k
ø155
ø91.5
ø121
ø150
mm /
155 6.1
: mm /
122 4.8
: 86.8 mm / 3.4
Ω
64
32
0
16
8
4
in
in
in