EMINENCE CannaBass CB3010N-8 10-inch HP Bass Guitar Speaker 450 Wrms 900 Watts Peak 8 Ohm Neodymium 3-in Voice oil Vented Fiberglass || SPECIFICATION || Nominal Basket Diameter : 10", 254 mm || Nominal Impedance* : 8 Ω || Power Rating* : || Program Power : 900 W || Watts : 450 W || Resonance : 41.62 Hz || Usable Frequency Range : 43 Hz - 3.4 kHz || Sensitivity* : 94 dB || Magnet Weight : 11 oz. || Gap Height : 0.365", 9.27 mm || Voice Coil Diameter : 3", 76.2 mm || || THIELE & SMALL PARAMETERS (1) || Resonant Frequency (fs) : 41.62 Hz || DC Resistance (Re) : 5.62 Ω || Coil Inductance (Le) : 0.62m H || Mechanical Q (Qms) : 7.95 || Electromagnetic Q (Qes) : 0.25 || Total Q (Qts) : 0.25 || Compliance Equivalent Volume (Vas) : 55.22 liters / 1.95 cu.ft. || || THIELE & SMALL PARAMETERS (2) || Peak Diaphragm Displacement Volume (Vd) : 244.23 cc || Mechanical Compliance of Suspension (Cms) : 0.28 mm/N || BL Product (BL) : 17.22 T-M || Diaphragm Mass Inc. Airload (MMs) : 51.42 grams || Efficiency Bandwidth Product (EBP) : 163.48 || Maximum Linear Excursion (Xmax) : 6.48 mm || Surface Area of Cone (Sd) : 376.9 cm2 || Maximum Mechanical Limit (Xlim) : 14.16 mm || || MOUNTING INFORMATION || Vented : Acceptable || Driver Volume Displaced : 64.68 cu.in. / 1.06 liters || Overall Diameter : 10.25", 260.35 mm || Baffle Hole Diameter : 9.12", 231.65 mm || Front Sealing Gasket : Yes || Rear Sealing Gasket : Yes || Mounting Holes Diameter : 0.28", 7.112mm || Mounting Holes B.C.D. : 9.73", 247.14mm || Depth : 4.25", 108 mm || Net Weight : 7.1 lbs, 3.22 kg || Shipping Weight : 8.9 lbs, 4.04 kgs || || MATERIALS OF CONSTRUCTION : || Coil Construction : Inside/Outside copper voice coil || Coil Former : Fiberglass former || Magnet Composition : Neodymium magnet || Core Details : Vented core || Basket Materials : Cast Aluminum Basket || Cone Composition : CBD treated paper cone || Cone Edge Composition : Cloth cone edge || Dust Cap Composition : Hempylene paper dustcap