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| Nominal Basket Diameter |
12", 304.8mm |
| Nominal Impedance* |
8 ohms |
| Power Rating |
|
 Watts |
250W |
| Music Program |
500W |
| Resonance |
43Hz |
| Usable Frequency Range |
66Hz-20kHz* |
| Sensitivity*** |
96.7 |
| Magnet Weight |
38 oz. |
| Gap Height |
0.312", 7.92mm |
| Voice Coil Diameter |
2", 50.8mm |
| THIELE & SMALL PARAMETERS |
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| Resonant Frequency (fs) |
43Hz |
| DC Resistance (Re) |
5.57 |
| Coil Inductance (Le) |
1.01mH |
| Mechanical Q (Qms) |
6.69 |
| Electromagnetic Q (Qes) |
0.51 |
| Total Q (Qts) |
0.48 |
| Compliance Equivalent Volume (Vas) |
161 liters / 5.7 cu.ft. |
| Peak Diaphragm Displacement Volume (Vd) |
186cc |
| Mechanical Compliance of Suspension (Cms) |
0.40mm/N |
| BL Product (BL) |
10.0 T-M |
| Diaphram Mass inc. Airload (Mms) |
34 grams |
| Efficiency Bandwidth Product (EBP) |
84 |
| Maximum Linear Excursion (Xmax) |
3.5mm |
| Surface Area of Cone (Sd) |
532.4 cm2 |
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| Maximum Mechanical Limit (Xlim) |
10.4mm |
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| MOUNTING INFORMATION |
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| Recommended Enclosure |
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| Sealed |
42.5-28 liters/1-1.5 cu.ft. |
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| Vented |
37-71 liters/1.3-2.5 cu.ft. |
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| Overall Diameter |
12.03", 305.5mm |
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| Baffle Hole Diameter |
10.95", 278.1mm |
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| Front Sealing Gasket |
fitted as standard |
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| Rear Sealing Gasket |
fitted as standard |
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| Mounting Holes Diameter |
0.25", 6.4mm |
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| Mounting Holes B.C. D. |
11.59", 294.3mm |
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| Depth |
4.47", 114mm |
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| Net Weight |
7.8 lbs., 3.5 kg |
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| Shipping Weight |
10 lbs., 4.5 kg |
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| MATERIALS OF CONSTRUCTION |
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| Coil Construction |
Copper voice coil |
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| Coil Former |
Polyimide former |
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| Magnet Composition |
Ferrite magnet |
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| Core Details |
Extended core |
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| Basket Materials |
Pressed steel basket |
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| Cone Composition |
Paper Cone |
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| Cone Edge Composition |
Cloth cone edge |
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| Dustcap Composition |
Screened cloth dust cap |
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