Visaton TI 100. Driver size: 101.6 mm (4 "), Mid-range driver size: 100 mm. RMS rated power: 40 W, Peak Music Power Output (PMPO): 60 W, Frequency range: fu – 20000 Hz. Driver cone material: Aluminium. Diameter: 100 mm, Weight: 1.05 kg. Dimensions (WxDxH): 122 x 122 x 76 mm, Audio output channels: 1.0, Material: Aluminium, Metal