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SPECIFICATIONS
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Nominal Basket Diameter
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15", 381mm
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Nominal Impedance*
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8 ohms
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Power Rating**
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Watts
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1200W
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Music Program
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2400W
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Resonance
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42 Hz
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Usable Frequency Range
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35 Hz – 1.2 kHz
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Sensitivity***
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96 dB
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Magnet Weight
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109 oz.
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Gap Height
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0.37", 9.53mm
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Voice Coil Diameter
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4", 101.2mm
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THIELE & SMALL PARAMETERS
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Resonant Frequency (fs)
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42Hz
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DC Resistance (Re)
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5.04
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Coil Inductance (Le)
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1.49mH
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Mechanical Q (Qms)
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6.73
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Electromagnetic Q (Qes)
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0.54
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Total Q (Qts)
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0.50
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Compliance Equivalent Volume (Vas)
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115.4 liters / 4.1 cu.ft.
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Peak Diaphragm Displacement Volume (Vd)
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786 cc
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Mechanical Compliance of Suspension (Cms)
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0.11mm/N
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BL Product (BL)
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18.4 T-M
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Diaphragm Mass Inc. Airload (MMs)
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139 grams
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Efficiency Bandwidth Product (EBP)
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77
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Maximum Linear Excursion (Xmax)
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9 mm
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Surface Area of Cone (Sd)
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872.9 cm2
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Maximum Mechanical Limit (Xlim)
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15.5mm
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MOUNTING INFORMATION
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Recommended Enclosure Volume
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Sealed
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49 liters / 0.1.7-2.1 cu.ft.
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Vented
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82-181 liters / 2.9-6.4 cu.ft.
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Driver Volume Displaced
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253 cu.in. / 4.3 liters
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Overall Diameter
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15.21", 386mm
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Baffle Hole Diameter
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14.0", 355.6 mm
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Front Sealing Gasket
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Fitted as standard
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Rear Sealing Gasket
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Fitted as standard
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Mounting Holes Diameter
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0.28", 6.9mm
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Mounting Holes B.C.D.
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14.56", 369.8mm
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Depth
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6.56", 166 mm
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Net Weight
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23.7 lbs, 10.8 kg
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Shipping Weight
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26 lbs, 12 kgs
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MATERIALS OF CONSTRUCTION
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Coil Construction
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Copper voice coil
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Coil Former
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Polyimide former
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Magnet Composition
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Ferrite magnet
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Core Details
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Undercut with Copper Shorting ring and core periphery ventilation
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Basket Materials
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Die-cast aluminum basket
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Cone Composition
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Paper cone
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Cone Edge Composition
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Cloth cone edge
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Dust Cap Composition
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Solid composition paper dust cap
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