General Characteristics |
Nominal Overall Diameter |
385mm |
15 in |
Nominal Voice Coil Diameter |
75 mm |
2 in |
Magnet Weight |
360 g |
12.70 oz |
Flux Density |
1.20 T |
Thiele-Small Parameters |
Voice Coil DC Resistance |
RE |
6.57Ω |
Resonance Frequency |
ÆS |
42.8Hz |
Mechanical Q Factor |
QMS |
11.43 |
Electrical Q Factor |
QES |
0.35 |
Total Q Factor |
QTS |
0.34 |
Mechanical Moving Mass |
MMS |
57.2 g |
Mechanical Compliance |
CMS |
243µm/N |
Force Factor |
BxL |
17.07 Wb/m |
Equivalent Acoustic Volume |
VAS |
194.3 lt. |
Maximum Linear Displacement |
XMAX |
2.5 mm |
Reference Efficiency |
nO |
4.22 % |
Diaphragm Area |
SD |
754.7 cm2 |
Losses Electrical Resistance |
RES |
216.8Ω |
Voice Coil Inductance @ 1kHz |
LE |
1.22 mH |
Constructive Characteristics |
Magnet |
Neodymium |
Voice Coil Winding |
Copper |
Voice Coil Former |
Kapton |
Cone |
Paper |
Surround |
Treated Cloth |
Dust Dome |
Solid Paper |
Basket |
Pressed Sheet Steel | |
Electrical Characteristics |
Nominal Impedance |
8 Ω |
Rated Power |
300 W |
Musical Power |
600 W |
Sensitivity@1W, 1m |
99.1 dB | |