General Characteristics |
| Nominal
Overall Diameter |
306mm |
12
in |
| Nominal
Voice Coil Diameter |
25mm |
1
in |
| Magnet
Weight |
280
g |
10
oz |
| Overall Weight |
2.90 lbs |
| Flux
Density |
0.95
T |
Thiele-Small Parameters |
| Voice
Coil DC Resistance |
RE |
6.71
Ω |
| Resonance
Frequency |
ƒS |
73.5
Hz |
| Mechanical
Q Factor |
QMS |
17.09 |
| Electrical
Q Factor |
QES |
1.69 |
| Total
Q Factor |
QTS |
1.54 |
| Mechanical
Moving Mass |
MMS |
29.1
g |
| Mechanical
Compliance |
CMS |
161
µm/N |
| Force
Factor |
BxL |
7.30
Wb/m |
| Equivalent
Acoustic Volume |
VAS |
54.4
lt. |
| Maximum
Linear Displacement |
XMAX |
+/- 1.0mm |
| Reference
Efficiency |
nO |
1.23% |
| Diaphragm
Area |
SD |
490.9 cm2 |
| Losses
Electrical Resistance |
RES |
67.7
Ω |
| Voice
Coil Inductance @ 1kHz |
LE |
1.14
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 |
8
Ω
|
| Rated
Power |
35
W
|
| Musical
Power |
70
W
|
| Sensitivity@1W,
1m |
93.7
dB
|
|
