Comes ONE speaker in the box. Specifications Nominal Diameter: 6.5 inch Inch Nominal Impedance: 8 Ohm RMS Power: 300W MAX Power: 650W Sensitivity (1w/1m): 92.7dB +/- 3dB Frequency range: 102 - 5.3K Hz Voice Coil Diameter: 2 inch Inch Air Gap Height: 1/4 inch Inch Thiele & Small ...Comes ONE speaker in the box. Specifications Nominal Diameter: 6.5 inch Inch Nominal Impedance: 8 Ohm RMS Power: 300W MAX Power: 650W Sensitivity (1w/1m): 92.7dB +/- 3dB Frequency range: 102 - 5.3K Hz Voice Coil Diameter: 2 inch Inch Air Gap Height: 1/4 inch Inch Thiele & Small Parameters Resonant Frequency, FS: 102 Hz D.C.
Voice Coil Resistance, Re: 6 Ohm Mechanical quality factor, QMS: 10.19 Electrical quality factor, Qes: 0.30 Total Quality Factor, Qts: 0.29 Equivalent Air Volume to Cms, Vas: 3.31L Mechanical Compliance, Cms: 134 uM/N Mechanical Resistance, Rms: 1.12 Kg/s BL Factor, BL: 11.44 N/A Effective Surface Area, Sd: 13.3m M Linear Excursion, Xmax: 3/32 inch Inch Materals Basket: Steel Cone: Keviar Surround: Rubber Voice Coil Wire: CCAR Voice Coil Bobbin: Kapton Magnet: NdFeB Mounting Information Overall Diameter: 6-19/32 inch Inch Bolt Circle Diameter: 6-7/32 inch Inch Baffle Cutout Diameter: 5-25/32 inch Inch Depth: 3-3/32 inch Inch Net weight: 1.7Kg (~3.75 lb) Age Group: adult.