Eminence Patriot Swamp Thang 12" Guitar Speaker, 150 Watts at 8 Ohms

This table charts the specifications for the SWAMP THANGT speaker * Nominal Basket Diameter: 12-in , 305 mm. * Nominal Impedance: 8 Ohms. * Power Rating: * Watts: 150 W. * Music Program: N/A. * Resonance: 97 Hz. * Usable Frequency Range: 70 Hz - 4 kHz. * Sensitivity: 102 dB. * Magnet Weight: 59 oz.. * Gap Height: 0.312-in , 7.9 mm. * Voice Coil Diameter: 2-in , 51 mm. * Thiele & Small Parameters. * Resonant Frequency (fs): 97 Hz. * DC Resistance (Re): 6.92 Ohms. * Coil Inductance (Le): 0.42m H. * Mechanical Q (Qms): 14.43. * Electromagnetic Q (Qes): 0.55. * Total Q (Qts): 0.53. * Compliance Equivalent Volume (Vas): 41.3 liters / 1.46 cu.ft.. * Peak Diaphragm Displacement Volume (Vd): 42.6 cc. * Mechanical Compliance of Suspension (Cms): 0.1 mm/N. * BL Product (BL): 14.2 T-M. * Diaphragm Mass Inc. Airload (MMs): 26 grams. * Efficiency Bandwidth Product (EBP): 177. * Maximum Linear Excursion (Xmax): 0.8 mm. * Surface Area of Cone (Sd): 532.4 cm2. * Maximum Mechanical Limit (Xlim): N/A. ----------------------------------- Recommended Enclosure Volume; * Sealed: Acceptable. * Vented: Acceptable. * Driver Volume Displaced: 0.079 cu.ft. / 2.25 liters. * Overall Diameter: 12.03-in , 305.6 mm. * Baffle Hole Diameter: 11.07-in , 281.2 mm. * Front Sealing Gasket: Yes. * Rear Sealing Gasket: Yes. * Mounting Holes Diameter: 0.25-in , 6.4mm. * Mounting Holes B.C.D.: 11.59-in , 294.4mm. * Depth: 5.2-in , 132.1 mm. * Net Weight: 11.1 lbs, 5.03 kg. * Shipping Weight: 12.8 lbs, 5.81 kgs. * 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. * Dust Cap Composition: Zurette dust cap.