KEF Reference 201/2. System type: 2.0 system, Recommended usage: speaker set unit, Speaker placement: Tabletop/bookshelf. Frequency range: 55 - 60000 Hz, Impedance: 8 Ом, Sensitivity: 86 dB. Recommended amplifier power (max): 150 W, Recommended amplifier power (min): 50 W. Connectivity technology: Wired. Colour of product: Cherry