General Characteristics |
| Nominal
Overall Diameter |
207mm |
8
in
|
| Nominal
Voice Coil Diameter |
25mm |
1
in
|
| Magnet
Weight |
160
g |
5.6
oz
|
| Flux
Density |
1.00
T |
Thiele-Small Parameters |
| Voice
Coil DC Resistance |
RE |
6.5Ω
|
| Resonance
Frequency |
ƒS |
139Hz
|
| Mechanical
Q Factor |
QMS |
16.85
|
| Electrical
Q Factor |
QES |
2.2
|
| Total
Q Factor |
QTS |
1.94
|
| Mechanical
Moving Mass |
MMS |
9.3
g
|
| Mechanical
Compliance |
CMS |
141
µm/N
|
| Force
Factor |
BxL |
4.88
Wb/m
|
| Equivalent
Acoustic Volume |
VAS |
9.1
lt.
|
| Maximum
Linear Displacement |
XMAX |
1.0
mm
|
| Reference
Efficiency |
nO |
1.06
%
|
| Diaphragm
Area |
SD |
213.8
cm2
|
| Losses
Electrical Resistance |
RES |
50Ω
|
| Voice
Coil Inductance @ 1kHz |
LE |
0.5
mH
|
Constructive Characteristics |
| Magnet |
Ferrite |
| Voice
Coil Winding |
Copper |
| Voice
Coil Former |
Epotex |
| Cone |
Paper |
| Surround |
Integrated
Paper |
| Dust
Dome |
Non
Treated Cloth |
| Basket |
Pressed
Sheet Steel |
|
Electrical Characteristics |
| Nominal
Impedance |
4/8Ω
|
| Rated
Power |
20
W
|
| Musical
Power |
40
W
|
| Sensitivity@1W,
1m |
93.2
dB
|
|
