| SPECIFICATION |
| Nominal Basket Diameter | 15", 381 mm |
| Nominal Impedance* | 8 Ω |
| Power Rating** |
| Watts | 1200 W |
| Music Program | 2400 W |
| Resonance | 40 Hz |
| Usable Frequency Range | 39 Hz - 1.2 kHz |
| Sensitivity*** | 94.7 dB |
| Magnet Weight | 109 oz. |
| Gap Height | 0.375", 9.5 mm |
| Voice Coil Diameter | 4", 102 mm |
| THIELE & SMALL PARAMETERS |
| Resonant Frequency (fs) | 40 Hz |
| DC Resistance (Re) | 5.18 Ω |
| Coil Inductance (Le) | 1.48m H |
| Mechanical Q (Qms) | 11.94 |
| Electromagnetic Q (Qes) | 0.54 |
| Total Q (Qts) | 0.52 |
| Compliance Equivalent Volume (Vas) | 111.97 liters / 3.95 cu.ft. |
| Peak Diaphragm Displacement Volume (Vd) | 770.7 cc |
| Mechanical Compliance of Suspension (Cms) | 0.11 mm/N |
| BL Product (BL) | 18.14 T-M |
| Diaphragm Mass Inc. Airload (MMs) | 137 grams |
| Efficiency Bandwidth Product (EBP) | 74 |
| Maximum Linear Excursion (Xmax) | 9 mm |
| Surface Area of Cone (Sd) | 856.3 cm2 |
| Maximum Mechanical Limit (Xlim) | 15.5 mm |
| MOUNTING INFORMATION |
| Recommended Enclosure Volume |
| Sealed | 43.89-99.11 liters / 1.55-3.50 cu.ft. |
| Vented | 67.96-205.30 liters / 2.40-7.25 cu.ft. |
| Driver Volume Displaced | 0.152 cu.ft. / 4.31 liters |
| Overall Diameter | 15.21", 386.3 mm |
| Baffle Hole Diameter | 14", 355.6 mm |
| Front Sealing Gasket | Yes |
| Rear Sealing Gasket | Yes |
| Mounting Holes Diameter | 0.28", 7.1mm |
| Mounting Holes B.C.D. | 14.56", 369.8mm |
| Depth | 6.56", 166.6 mm |
| Net Weight | 23.7 lbs, 10.75 kg |
| Shipping Weight | 26 lbs, 11.79 kgs |
| MATERIALS OF CONSTRUCTION |
| Coil Construction | Copper voice coil |
| Coil Former | Polyimide former |
| Magnet Composition | Ferrite magnet |
| Core Details | Undercut with aluminum shorting ring and Core Periphery Ventilation |
| | |
| Basket Materials | Die-cast aluminum basket |
| Cone Composition | Water resistant paper cone |
| Cone Edge Composition | Cloth cone edge |
| Dust Cap Composition | Water resistant treated paper dust cap |