12 inch high quality pa speaker 75mm voice coil

SPECIFICATIONS IN OVERVIEW  Products Description Model: M1275D           General Specifications     Size mm(in.) 300(12) Nominal Diameter Ω 8 Nominal Impedance Ω 6 Program Power W 1000 AES Power Rating W 500 Sensitivity dB 99 Frequency Range Hz 45～3000 VC Diameter mm(in.) 75.5(3) Chassis Material Aluminium   Magnet material Ferrite   Magnet Dimensions OD*ID*H mm 170*85*20 Coil Material Copper Flat wire   Former material Aluminium   cone Material Paper   Surround Material Cloth   Xmax mm(in.) 4.6(0.18) Xmech mm(in.) 10.1(0.4) Gap Height mm(in.) 10(0.39) VC winding height mm(in.) 14.2(0.56) Driver displacement volume l (ft³) 2.8(0.1) Small Signsl Parameters     DC resistance Re 5.2Ω Resonance Frequency Fs 45Hz Moving Mass Mms 57g Compliance Cms 0.20mm/N Force Fac