Heco Victa 500. Tweeter size: 25 mm, Mid-range driver size: 170 mm, Woofer size: 170 mm. Frequency range: 28 - 38000 Hz, Impedance: 4 Ом, Crossover frequency: 3500 Hz. Driver cone material: Aluminium. Type: Floor-standing speakers, Dimensions (WxDxH): 230 x 305 x 950 mm, Audio output channels: 2.0