Impedance = 2×2 Ohm Power Recommendation = 350-800W Power RMS = 800W Resonance frequency = 33 Hz Vas = 28,2 Liter Qts = 0,37 SPL 1W/1 Meter = 86 dB Outer Diameter = 259 mm (265mm with rubber ring) Mounting Diameter = 236 mm Mounting depth = 150 mm Recommended enclosure = 19l sealed.