Midrange, diameter: 6.5″ (16.5 cm) Nominal power: 51W, Maximum power: 151W Frequency response: 90Hz-10kHz Sensitivity: 91 db Impedance: 4Ω Voice coil diameter: 1.″ (25.4 mm) Magnet weight: 15,4 Oz (0.545 kg) Price for pair, grilles included