Tweeter size: 20 mm Tweeter material: Piezoelectric Midrange size: 57 mm Dimensions: 237 x 89 x 163 mm Weight: 1,98 kg Cut-out Hole: 222 x 153 mm Mounting Depth: 68 mm Maximum power input: 400W Nominal input power: 50W Impedance: 4 Ω Frequency response: 31 – 35,000 Hz Lowest resonance frequency: 69 Hz