SPECIFICATION |
Nominal Basket Diameter |
12", 305 mm |
Nominal Impedance* |
8 Ω |
Power Rating* |
Program Power |
500 W |
Watts |
250 W |
Resonance |
47 Hz |
Usable Frequency Range |
43 Hz - 3.8 kHz |
Sensitivity* |
98 dB |
Magnet Weight |
38 oz. |
Gap Height |
0.31", 7.9 mm |
Voice Coil Diameter |
2", 51 mm |
THIELE & SMALL PARAMETERS |
Resonant Frequency (fs) |
47 Hz |
DC Resistance (Re) |
5 Ω |
Coil Inductance (Le) |
0.64m H |
Mechanical Q (Qms) |
6 |
Electromagnetic Q (Qes) |
0.5 |
Total Q (Qts) |
0.46 |
Compliance Equivalent Volume (Vas) |
120.1 liters / 4.24 cu.ft. |
Peak Diaphragm Displacement Volume (Vd) |
237 cc |
Mechanical Compliance of Suspension (Cms) |
0.29 mm/N |
BL Product (BL) |
10.8 T-M |
Diaphragm Mass Inc. Airload (MMs) |
40 grams |
Efficiency Bandwidth Product (EBP) |
94 |
Maximum Linear Excursion (Xmax) |
4.4 mm |
Surface Area of Cone (Sd) |
538.9 cm2 |
Maximum Mechanical Limit (Xlim) |
11 mm |
MOUNTING INFORMATION |
Recommended Enclosure Volume |
Sealed |
25.5-35.4 liters / 0.9-1.25 cu.ft. |
Vented |
36.8-139 liters / 1.3-4.9 cu.ft. |
Driver Volume Displaced |
0.071 cu.ft. / 2 liters |
Overall Diameter |
12.03", 305.6 mm |
Baffle Hole Diameter |
11.07", 281.2 mm |
Front Sealing Gasket |
Yes |
Rear Sealing Gasket |
Yes |
Mounting Holes Diameter |
0.25", 6.4mm |
Mounting Holes B.C.D. |
11.59", 294.4mm |
Depth |
4.57", 116.1 mm |
Net Weight |
7.5 lbs, 3.4 kg |
Shipping Weight |
9.7 lbs, 4.4 kgs |
MATERIALS OF CONSTRUCTION |
Coil Construction |
Copper voice coil |
Coil Former |
Polyimide former |
Magnet Composition |
Ferrite magnet |
Core Details |
Vented and extended core |
|
|
Basket Materials |
Pressed steel basket |
Cone Composition |
Paper cone |
Cone Edge Composition |
Cloth cone edge |
Dust Cap Composition |
Solid composition paper dust cap |