| 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 |
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