General
Characteristics |
| Nominal
Overall Diameter |
207mm |
8 in |
| Nominal
Voice Coil Diameter |
25 mm |
1 in |
| Magnet
Weight |
280 g |
9.9oz |
| Flux
Density |
1.0 T |
Thiele-Small Parameters |
| Voice
Coil DC Resistance |
RE |
7.0 Ω |
| Resonance Frequency |
ƒS |
125.0 Hz |
| Mechanical Q Factor |
QMS |
11.61 |
| Electrical Q Factor |
QES |
2.21 |
| Total Q
Factor |
QTS |
1.86 |
| Mechanical Moving Mass |
MMS |
8.7g |
| Mechanical Compliance |
CMS |
182µm/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 |
37.0 Ω |
| Voice
Coil Inductance @ 1kHz |
LE |
0.43 mH |
Constructive Characteristics |
| Magnet |
Ferrite |
| Voice
Coil Winding |
Copper |
| Voice
Coil Former |
Epotex |
| 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 | |
