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| SPECIFICATION | |
| Nominal Basket Diameter | 8", 203 mm |
| Nominal Impedance* | 8 Ω |
| Power Rating** | |
| Watts | 225 W |
| Music Program | 450 W |
| Resonance | 69 Hz |
| Usable Frequency Range | 100 Hz - 3 kHz |
| Sensitivity*** | 97.8 dB |
| Magnet Weight | 59 oz. |
| Gap Height | 0.31", 7.9 mm |
| Voice Coil Diameter | 2", 51 mm |
| THIELE & SMALL PARAMETERS | |
| Resonant Frequency (fs) | 69 Hz |
| DC Resistance (Re) | 5.4 Ω |
| Coil Inductance (Le) | 0.82m H |
| Mechanical Q (Qms) | 6.43 |
| Electromagnetic Q (Qes) | 0.22 |
| Total Q (Qts) | 0.22 |
| Compliance Equivalent Volume (Vas) | 18.32 liters / 0.65 cu.ft. |
| Peak Diaphragm Displacement Volume (Vd) | 66 cc |
| Mechanical Compliance of Suspension (Cms) | 0.28 mm/N |
| BL Product (BL) | 14.1 T-M |
| Diaphragm Mass Inc. Airload (MMs) | 19 grams |
| Efficiency Bandwidth Product (EBP) | 307 |
| Maximum Linear Excursion (Xmax) | 3 mm |
| Surface Area of Cone (Sd) | 218.2 cm2 |
| Maximum Mechanical Limit (Xlim) | 7.0 mm |
| MOUNTING INFORMATION | |
| Recommended Enclosure Volume | |
| Sealed | 8.00-16.00 liters / 0.30-0.60 cu.ft. |
| Vented | 10.00-16.00 liters / 0.40-0.60 cu.ft. |
| Driver Volume Displaced | 0.037 cu.ft. / 1.04 liters |
| Major Diameter | 9.36", 237.7 mm |
| Flat to Flat Diameter | 8.02", 203.7 mm |
| Baffle Hole Diameter | 7.36", 186.9 mm |
| Front Sealing Gasket | Yes |
| Rear Sealing Gasket | Yes |
| Mounting Holes Diameter | 0.28", 7.1mm |
| Mounting Holes B.C.D. | 8.6", 218.4mm |
| Depth | 3.75", 95.3 mm |
| Net Weight | 10 lbs, 4.54 kg |
| Shipping Weight | 11 lbs, 4.99 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 | Die-cast aluminum basket |
| Cone Composition | Paper cone |
| Cone Edge Composition | Cloth cone edge |
| Dust Cap Composition | Solid composition paper dust cap |
