Eminence 620H 6 4 Ohm Guitar Speaker

This item is brand-new, factory sealed.

This table charts the specifications for the 620H speaker * Nominal Basket Diameter: 6.5-in , 165 mm. --> * Nominal Basket Diameter: 6-in , 165 mm. * Nominal Impedance: 4 Ohms. * Power Rating: * Watts: 20 W. * Music Program: 40 W. * Resonance: 114 Hz. * Usable Frequency Range: 100 Hz - 5.3 kHz. * Sensitivity: 94.6 dB. * Magnet Weight: 15 oz.. * Gap Height: 0.25-in , 6.4 mm. * Voice Coil Diameter: 1-in , 25 mm. * Thiele & Small Parameters. * Resonant Frequency (fs): 114 Hz. * DC Resistance (Re): 3.94 Ohms. * Coil Inductance (Le): 0.25m H. * Mechanical Q (Qms): 5.5. * Electromagnetic Q (Qes): 0.54. * Total Q (Qts): 0.49. * Compliance Equivalent Volume (Vas): 8.67 liters / 0.31 cu.ft.. * Peak Diaphragm Displacement Volume (Vd): 5.3 cc. * Mechanical Compliance of Suspension (Cms): 0.32 mm/N. * BL Product (BL): 5.62 T-M. * Diaphragm Mass Inc. Airload (MMs): 6 grams. * Efficiency Bandwidth Product (EBP): 210. * Maximum Linear Excursion (Xmax): 0.4 mm. * Surface Area of Cone (Sd): 139.7 cm2. * Maximum Mechanical Limit (Xlim): N/A. ----------------------------------- Recommended Enclosure Volume; * Sealed: Acceptable. * Vented: Acceptable. * Driver Volume Displaced: 0.011 cu.ft. / 0.3 liters. * Overall Diameter: 6.59-in , 167.4 mm. * Baffle Hole Diameter: 5.65-in , 143.5 mm. * Front Sealing Gasket: Yes. * Rear Sealing Gasket: Yes. * Mounting Holes Diameter: 0.23-in , 5.8mm. * Mounting Holes B.C.D.: 6.06-in , 153.9mm. * Depth: 2.8-in , 71.1 mm. * Net Weight: 2.9 lbs, 1.32 kg. * Shipping Weight: 3.6 lbs, 1.63 kgs. * Materials of Construction. * Coil Construction: Copper voice coil. * Coil Former: Paper former. * Magnet Composition: Ferrite magnet. * Core Details: Non-vented core. -----------------------------------. * Basket Materials: Pressed steel basket. * Cone Composition: Paper cone. * Cone Edge Composition: Full molded paper cone. * Dust Cap Composition: Paper dust cap.