Eminence Legend 1258 12" Replacement Guitar Speaker | LEGEND 1258 | | | SPECIFICATION | | | Nominal Basket Diameter | 12 , 304.8mm | | Nominal Impedance* | 8 ohms | | Power Rating | |  Watts | 75W | | Music Program | | | Resonance | 94Hz | | Usable Frequency Range | 80Hz-4kHz | | Sensitivity*** | 100.1 | | Magnet Weight | 34 oz. | | Gap Height | 0.312 , 7.92mm | | Voice Coil Diameter | 1.5 , 38.1mm | | | | | THIELE & SMALL PARAMETERS | | | Resonant Frequency (fs) | 94Hz | | DC Resistance (Re) | 7.44 | | Coil Inductance (Le) | 0.70mH | | Mechanical Q (Qms) | 6.15 | | Electromagnetic Q (Qes) | 1.18 | | Total Q (Qts) | 0.99 | | Compliance Equivalent Volume (Vas) | 32.5 liters / 1.2 cu. ft. | | Peak Diaphragm Displacement Volume (Vd) | 24cc | | Mechanical Compliance of Suspension (Cms) | 0.09mm/N | | BL Product (BL) | 10.9 T-M | | Diaphram Mass inc. Airload (Mms) | 32 grams | | Efficiency Bandwidth Product (EBP) | 80 | | Maximum Linear Excursion (Xmax) | 0.5mm | | Surface Area of Cone (Sd) | 506.7 cm2 | | Maximum Mechanical Limit (Xlim) | | | | | | MOUNTING INFORMATION | | | Recommended Enclosure | | | Sealed | | | Vented | Acceptable | | Overall Diameter | 12.03 , 305.5mm | | Baffle Hole Diameter | 10.95 , 278.1mm | | Front Sealing Gasket | fitted as standard | | Rear Sealing Gasket | fitted as standard | | Mounting Holes Diameter | 0.25 , 6.4mm | | Mounting Holes B.C. D. | 11.59 , 294.3mm | | Depth | 4.9 , 125mm | | Net Weight | 7.8 lbs., 3.5 kg | | Shipping Weight | 9.9 lbs., 4.5 kg | | | | | MATERIALS OF CONSTRUCTION | | | Coil Construction | Copper voice coil | | Coil Former | Polyimide former | | Magnet Composition | Ferrite magnet | | Core Details | Non-vented core | | Basket Materials | Pressed steel basket | | Cone Composition | Paper Cone | | Cone Edge Composition | Paper cone edge | | Dustcap Composition | Solid composition paper dust cap |
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