Fostex FW137 User manual

Features
Frequency Response / Impedance
Dimensions & Mounting Information
Overall Diameter :
Baffle Hole Diameter
:
Depth :
mm / in
mm / in
mm / in
Specifications
&
Thiele/Small Parameters
Size :
Voice Coil Diameter
:
Cast / Stamped :
Impedance :
Reproduction Frequency Response
:fs -
Sound Pressure Level
:
Rated Input :
Music Power :
Magnet Material :
Magnet Weight
(main) :
(cancel) :
Net Weight
mm / in
mm / in
Ω
kHz
dB/W(m)
W
W
g / lb
g / lb
g / lb
a :
Sd :
Zn :
Fs :
Re :
Le :
Qms :
Qes :
Qts :
Mms :
BL :
Vas :
Xmax :
Eff/η0 :
Cms :
EBP :
mm
m2
Ω
Hz
Ω
mH
g
Telsa/m
L
mm
%
mm/N
FW137
Low Flux Leakage Woofer
130 5
30.4 1.2
Cast
8
8
87
25
75
Ferrite
226 0.498
152 0.335
1,495 3.296
155 6.1
122 4.8
86.8 3.4
•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
55
0.0095
8
55
7.4
0.067
3.58
0.57
0.5
11.7
7.06
10.202
1
0.24
0.0008
96.491
ø155
ø91.5
ø121
ø150
(77)
(86.8) 9.8
(8)
5-ø4.2 hole
20 50 100 200 500 1k 2k 5k 10k 20k
50
60
70
80
90
100
110
(dB)
Hz
Ω
64
32
16
8
4
Impedance
60
0
30
0