Quadral Chromium Style 20. Recommended usage: speaker set unit, Speaker placement: Tabletop/bookshelf, Speaker enclosure: Closed. RMS rated power: 90 W, Frequency range: 51 - 46000 Hz, Impedance: 8 Ом. Connectivity technology: Wired. Width: 133 mm, Depth: 169 mm, Height: 200 mm