Elac FS 68. Woofer: 2x 175mm, Tweeter size: 25 mm, Mid-range driver size: 140 mm. RMS rated power: 110 W, Peak Music Power Output (PMPO): 150 W, Frequency range: 38 - 25000 Hz. Width: 250 mm, Depth: 335 mm, Height: 1080 mm. Type: Floor-standing speakers, Audio output channels: 1.0