Model:MW1547-2 ?Power Rating: 175 Watts R.M.S / 350Watts Peak ?Sensitivity: 95?dB (1W / 1M) ?Imdepance:8Ω ?Fo:36?0% Hz ?Frequency Response: Fo-4KHz ?Voice Coil: 3?Kapton ?Magnet: 80 oz, 180 x 95 x 25 mm ?Frame: Steel, Black color ?Cone: Paper ?Edge: Cloth