Fostex FF85K User manual

Features
Frequency Response / Impedance
Dimensions & Mounting Information
Specifications
&
Thiele/Small Parameters
mm / in
mm / in
Ω
kHz
dB/W(m)
W
W
g / lb
g / lb
g / lb
Size :
Voice Coil Diameter
:
Cast / Stamped :
Impedance :
Reproduction Frequency Response
: f0 -
Sound Pressure Level
:
Rated Input :
Music Power :
Magnet Material :
Magnet Weight
(main) :
(cancel) :
Net Weight
a :
D :
Sd :
Zn :
Fs :
Re :
Le :
Qms :
Qes :
Qts :
Mms :
BL :
Vas :
Xmax :
Eff/η0 :
Cms :
EBP :
mm
mm
m2
Ω
Hz
Ω
mH
g
Telsa/m
L
mm
%
mm/N
Overall Diameter :
Baffle Hole Diameter
:
Depth :
mm / in
mm / in
mm / in
FF85K
FULL RANGE SPEAKER UNIT
20 50 100 200 500 1k 2k 5k 10k 20k 40k
50
60
70
80
90
100
110
(dB)
Hz
Ω
16
8
4
Impedance
0º
30º
60º
ø70
815 46
ø77
83
(49)
FF85K
FULL RANGE
IMP,8ΩMus.15W
NOM.5W
ø86
ø77.4
4-4 x 6 hole
80 3
20 1
Stamped
8
125
88
5
10
Ferrite
228.3 0.503
n/a n/a
565.0 1.246
83 3
72 3
49 2
ø72
30
40
•ø70mm large ferrite magnet
•Special paper cone made of
‘non-wood pulp fiber [KENAF]
and bio-cellulose fiber
•UDR tangential edge
•Aluminum center radiator con-
nected onto voice coil
3
6
0.00283
8
122
7.08
n/a
5.54
0.52
0.47
1.8
4.33
1.07
0.55
0.37
0.001
235