Pair Faital Pro 8PR210 8ohm 8" Woofer Midrange Midbass Replacement Speaker 400W

Specifications. Brand:FAITAL PRO; Model:8PR210; Nominal Diameter:8"; Nominal Impedance:8ohm; RMS Power:200 W; Peak Power (Watts):400 W; Sensitivity (dB):95 dB; Max Excursion(Xdam)(Xlim):15.7 mm; Max Linear Excursion (Xmax):6.92 mm; Usable Frequency Range (Hz):70-5k Hz; Surround Shape:Triple Roll; Basket / Frame Material:Aluminum; Spider Detail/Material:1x variable height waves; Voice Coil Diameter:2"; Voice Coil Former:Glass Fiber; Voice Coil Wire Material:Aluminum; Voice Coil Winding Depth:16.5 mm; Voice Coil Gap Height:8 mm; Demodulating Ring:Aluminum Ring; Magnet Material:Ferrite . Parameters. Compliance Equivalent Volume (Vas):0.46 Ft3; Total Q (Qts):0.29; Mechanical Q (Qms):3.1; Electromagnetic Q (Qes):0.32; Minimum Impedance (Zmin):7ohm; DC Resistance (Re):5.7 ohm; Mechanical Resistance (Rms):7.45 lbs/sec; Surface Area of Cone (Sd):30.38 in2; Voice Coil Inductance (Le):0.46 mH; Flux Density:1.3 T; BL Product(Bl):13.5 T-m; Moving Mass Of Diaphragm (Mmd):23.7 g; Moving Mass(MMs):25.3 g; Reference Efficiency (No):0.0106; Mechanical Compliance (Cms):0.24 mm/N; EBP:203 Hz; Driver Displacement:64 in3. Mounting and Shipping Information. Overall Diameter:8.18"; Largest Dimension:8.81"; Baffle Hole Diameter:7.2"; Bolt Circle Diameter:8.27"; Flange and Gasket Thickness:0.43"; Depth:3.88"; Net Weight(lb):9.5