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| SPECIFICATION | |
| Nominal Basket Diameter | 8", 203 mm |
| Nominal Impedance* | 8 Ω |
| Power Rating** | |
| Watts | 125 W |
| Music Program | 250 W |
| Resonance | 73 Hz |
| Usable Frequency Range | 58 Hz - 5 kHz |
| Sensitivity*** | 94 dB |
| Magnet Weight | 20 oz. |
| Gap Height | 0.25", 6.4 mm |
| Voice Coil Diameter | 1.5", 38 mm |
| THIELE & SMALL PARAMETERS | |
| Resonant Frequency (fs) | 73 Hz |
| DC Resistance (Re) | 5.3 Ω |
| Coil Inductance (Le) | 0.44m H |
| Mechanical Q (Qms) | 4.6 |
| Electromagnetic Q (Qes) | 0.68 |
| Total Q (Qts) | 0.59 |
| Compliance Equivalent Volume (Vas) | 17.7 liters / 0.63 cu.ft. |
| Peak Diaphragm Displacement Volume (Vd) | 67 cc |
| Mechanical Compliance of Suspension (Cms) | 0.28 mm/N |
| BL Product (BL) | 7.8 T-M |
| Diaphragm Mass Inc. Airload (MMs) | 17 grams |
| Efficiency Bandwidth Product (EBP) | 107 |
| Maximum Linear Excursion (Xmax) | 3.2 mm |
| Surface Area of Cone (Sd) | 210 cm2 |
| Maximum Mechanical Limit (Xlim) | 7.1 mm |
| MOUNTING INFORMATION | |
| Recommended Enclosure Volume | |
| Sealed | 5.00-7.00 liters / 0.18-0.25 cu.ft. |
| Vented | 16.70-25.50 liters / 0.59-0.90 cu.ft. |
| Driver Volume Displaced | 0.02 cu.ft. / 0.58 liters |
| Overall Diameter | 8.24", 209.3 mm |
| Baffle Hole Diameter | 7.13", 181.1 mm |
| Front Sealing Gasket | Yes |
| Rear Sealing Gasket | Yes |
| Mounting Holes Diameter | 0.22", 5.6mm |
| Mounting Holes B.C.D. | 7.75", 196.9mm |
| Depth | 3.25", 82.6 mm |
| Net Weight | 4.3 lbs, 1.95 kg |
| Shipping Weight | 5.1 lbs, 2.31 kgs |
| MATERIALS OF CONSTRUCTION | |
| Coil Construction | Copper voice coil |
| Coil Former | Polyimide former |
| Magnet Composition | Ferrite magnet |
| Core Details | Vented core |
| Basket Materials | Pressed steel basket |
| Cone Composition | Paper cone |
| Cone Edge Composition | Cloth cone edge |
| Dust Cap Composition | Solid composition paper dust cap |
