General Characteristics |
| Nominal
Overall Diameter |
306mm |
12
in
|
| Nominal
Voice Coil Diameter |
38mm |
1.5
in
|
| Magnet
Weight |
640
g |
22.5
oz
|
| Flux
Density |
1.16
T |
Thiele-Small Parameters |
| Voice
Coil DC Resistance |
RE |
5
Ω
|
| Resonance
Frequency |
ƒS |
79
Hz
|
| Mechanical
Q Factor |
QMS |
7.98
|
| Electrical
Q Factor |
QES |
0.96
|
| Total
Q Factor |
QTS |
0.85
|
| Mechanical
Moving Mass |
MMS |
30.5
g
|
| Mechanical
Compliance |
CMS |
135
µm/N
|
| Force
Factor |
BxL |
8.98
Wb/m
|
| Equivalent
Acoustic Volume |
VAS |
45.5
lt.
|
| Maximum
Linear Displacement |
XMAX |
1.5
mm
|
| Reference
Efficiency |
nO |
2.24%
|
| Diaphragm
Area |
SD |
490.8cm2
|
| Losses
Electrical Resistance |
RES |
43
Ω
|
| Voice
Coil Inductance @ 1kHz |
LE |
0.54
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 |
8/16
Ω
|
| Rated
Power |
70
W
|
| Musical
Power |
140
W
|
| Sensitivity@1W,
1m |
97.5
dB
|
|
