General Characteristics |
| Nominal
Overall Diameter |
207mm |
8
in |
| Nominal
Voice Coil Diameter |
25mm |
1
in |
| Magnet
Weight |
280
g |
10 oz |
| OverallWeight |
2.20 lbs |
| Flux
Density |
1.0
T |
Thiele-Small Parameters |
| Voice
Coil DC Resistance |
RE |
7.0Ω |
| Resonance
Frequency |
ƒS |
125.0Hz |
| Mechanical
Q Factor |
QMS |
11.61 |
| Electrical
Q Factor |
QES |
2.21 |
| Total
Q Factor |
QTS |
1.86 |
| Mechanical
Moving Mass |
MMS |
8.7
g |
| Mechanical
Compliance |
CMS |
182 µm/N |
| Force
Factor |
BxL |
4.69
Wb/m |
| Equivalent
Acoustic Volume |
VAS |
11.7
lt. |
| Maximum
Linear Displacement |
XMAX |
1.0
mm |
| Reference
Efficiency |
nO |
1.03
% |
| Diaphragm
Area |
SD |
213.8
cm2 |
| Losses
Electrical Resistance |
RES |
37Ω |
| Voice
Coil Inductance @ 1kHz |
LE |
0.43
mH |
Constructive Characteristics |
| Magnet |
Ferrite |
| Voice
Coil Winding |
Copper |
| Voice
Coil Former |
Kapton |
| Cone |
Paper |
| Surround |
Integrated
Paper |
| Dust
Dome |
Treated
Cloth |
| Basket |
Pressed
Sheet Steel |
|
Electrical Characteristics |
| Nominal
Impedance |
8
Ω
|
| Rated
Power |
25
W
|
| Musical
Power |
50
W
|
| Sensitivity@1W,
1m |
92.7
dB
|
|
