Recommended for professional audio as a mid-bass or woofer (with high-pass filter) in vented enclosures. Also suitable for lead and bass guitar, keyboards, guitar combos, club music systems, and stage monitors. Specifications: *Power handling: 400 watts RMS *VCdia: 2.5" *Le: 0.74 mH *Impedance: 8 ohms *Re: 6.3 ohms *Frequency range: 54-5,000 Hz *Magnet weight: 56 oz. *Fs: 55 Hz *SPL: 98.3 dB 1W/1m *Vas: 2.9 cu. ft. *Qms: 5.27 *Qes: 0.46 *Qts: 0.43 *Xmax: 2.4 mm *Dimensions: Overall Diameter: 12.03", Cutout Diameter: 10.95", Mounting Depth: 5.35".