Nominal Basket Diameter: 12"", 304, 8mm, Nominal Impedance: 16 ohms, Power Rating, Watts: 150W, Resonance: 97Hz, Usable Frequency Range: 70Hz-5, 5kHz, Sensitivity: 102, Gap Height: 0, 312"", 7, 92mm, Voice Coil Diameter: 2"", 50, 8mm, Thiele and Small Parameters:, Resonant Frequency (fs): 97Hz, DC Resistance (Re): 14, 63, Coil Inductance (Le): 0, 69mH, Mechanical Q (Qms): 12, 21, Electromagnetic Q (Qes): 0, 61, Total Q (Qts): 0, 58, Compliance Equivalent Volume (Vas): 32, 4 liters / 1, 1 cu, ft, Mechanical Compliance of Suspension (Cms): 0, 09mm/N, BL Product (BL): 21, 5 T-M, Diaphram Mass inc, Airload (Mms): 32 grams, Efficiency Bandwidth Product (EBP): 160, Maximum Linear Excursion (Xmax): 0, 8mm, Surface Area of Cone (Sd): 519, 5 cm2, Mounting Information:, Overall Diameter: 12, 02"", 305, 3mm, Baffle Hole Diameter: 10, 97"", 278, 6mm, 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, 63"", 295, 4mm, Depth: 5, 2"", 132mm, 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: Zurette dust cap, SKU: TBALL9130