The performance of the Eminence Beta-12A-II 12"" speaker is optimized for sound reinforcement systems, The Beta-12A-II is also suitable for lead and bass guitar, keyboards, guitar combos club music systems and stage monitors, Made in the USA, Kapton coil former, Polyamide-imide coated copper voice coil, Ferrite magnet, Vented and pole piece, Pressed steel basket, Paper cone, Cloth accordian surround, Power handling: 250 watts RMS, VCdia: 2"", Le: 0, 64 mH, Impedance: 8 ohms, Re: 5, 0 ohms, Frequency range: 43-3,800 Hz, Magnet weight: 38 oz, Fs: 47 Hz, SPL: 98 dB 1W/1m, Vas: 4, 2 cu, ft, Qms: 6, 00, Qes: 0, 50, Qts: 0, 46, Xmax: 4, 4 mm, Dimensions: Overall Diameter: 12, 03"", Cutout Diameter: 10, 95"", Mounting Depth: 4, 57"", SKU: TBALL8922