General Characteristics |
| Nominal
Overall Diameter |
306mm |
12
in |
| Nominal
Voice Coil Diameter |
25mm |
1.0
in |
| Magnet
Weight |
270
g |
10
oz |
| Overlall Weight |
3.10 lbs |
| Flux
Density |
1.0
T |
Thiele-Small Parameters |
| Voice
Coil DC Resistance |
RE |
6.50Ω |
| Resonance
Frequency |
ƒS |
74.0Hz |
| Mechanical
Q Factor |
QMS |
21.48 |
| Electrical
Q Factor |
QES |
2.06 |
| Total
Q Factor |
QTS |
1.88 |
| Mechanical
Moving Mass |
MMS |
24.6
g |
| Mechanical
Compliance |
CMS |
187.0 µm/N |
| Force
Factor |
BxL |
5.98
Wb/m |
| Equivalent
Acoustic Volume |
VAS |
63.2
lt. |
| Maximum
Linear Displacement |
XMAX |
0.8
mm |
| Reference
Efficiency |
nO |
1.2
% |
| Diaphragm
Area |
SD |
490.8
cm2 |
| Losses
Electrical Resistance |
RES |
67Ω |
| Voice
Coil Inductance @ 1kHz |
LE |
0.49
mH |
Constructive Characteristics |
| Magnet |
Ferrite |
| Voice
Coil Winding |
Copper |
| Voice
Coil Former |
Kapton |
| Cone |
Paper |
| Surround |
Integrated
Paper |
| Dust
Dome |
Felt |
| Basket |
Pressed
Sheet Steel |
|
Electrical Characteristics |
| Nominal
Impedance |
8
Ω
|
| Rated
Power |
25
W
|
| Musical
Power |
50
W
|
| Sensitivity@1W,
1m |
93.8
dB
|
|
