Eminence 15' 400W 8-Ohm PRO Audio & Bass Guitar Replacement Woofer ALPHA-15A

FREE FAST SHIPPING TO ALL USA STATES! WE SHIP MOST ORDERS SAME DAY! [ AND WORLDWIDE SHIPPING AVAILABLE! ] Brand New !!! "Here's your chance to get this item at a great price! Sale Ends Soon! GET IT FAST! " Eminence 15" 400W 8-Ohm PRO Audio & Bass Guitar Replacement Woofer ALPHA-15A - NEW Recommended for professional audio and bass guitar applications as a woofer in a vented or sealed enclosure. Free Shipping deliver within 2 to 3 business days or less. SpecificationNominal Basket Diameter15", 381 mmNominal Impedance*8 ?Power Rating*Program Power400 WWatts200 WResonance41 HzUsable Frequency Range46 Hz - 3.5 kHzSensitivity*97 dBMagnet Weight25 oz.Gap Height0.25", 6.4 mmVoice Coil Diameter1.5", 38 mmThiele & Small ParametersResonant Frequency (fs)41 HzDC Resistance (Re)5.88 ?Coil Inductance (Le)0.84m HMechanical Q (Qms)7.23Electromagnetic Q (Qes)1.53Total Q (Qts)1.26Compliance Equivalent Volume (Vas)260 liters / 9.18 cu.ft.Peak Diaphragm Displacement Volume (Vd)325 ccMechanical Compliance of Suspension (Cms)0.25 mm/NBL Product (BL)7.7 T-MDiaphragm Mass Inc. Airload (MMs)59 gramsEfficiency Bandwidth Product (EBP)27Maximum Linear Excursion (Xmax)3.8 mmSurface Area of Cone (Sd)856.3 cm2Maximum Mechanical Limit (Xlim)8.4 mmMounting InformationRecommended Enclosure VolumeSealed71-85 liters / 2.5-3 cu.ft.Vented106-177 liters / 3.75-6.25 cu.ft.Driver Volume Displaced0.113 cu.ft. / 3.21 litersOverall Diameter15.15", 384.8 mmBaffle Hole Diameter13.87", 352.3 mmFront Sealing GasketYesRear Sealing GasketYesMounting Holes Diameter0.25", 6.4mmMounting Holes B.C.D.14.56", 369.8mmDepth5.83", 148.1 mmNet Weight6.7 lbs, 3.04 kgShipping Weight8.8 lbs, 3.99 kgsMaterials of ConstructionCoil ConstructionCopper voice coilCoil FormerPolyimide formerMagnet CompositionFerrite magnetCore DetailsVented and extended coreBasket MaterialsPressed steel basketCone CompositionPaper coneCone Edge CompositionCloth cone edgeDust Cap CompositionSolid composition paper dust cap