Q Acoustics 2020 Compact Bookshelf/Wall Mount Loudspeakers •Enclosure type: 2-way reflex •Bass Unit: 125mm •Treble Unit: 25mm •Frequency Response: 64Hz - 22kHz •Nominal Impedance: 6 Ohms •Minimum Impedance: 4 Ohms •Sensitivity: 88dB •Recommended Power: 25 - 75w •Crossover Frequency: 2.9kHz •Dimensions H/D/W mm: 264.5 x 278 x 170 •Weight: 5.0kg