JBL LOFT50, LOFT SERIES. Recommended usage: speaker set unit, Speaker placement: Floor, Tweeter size: 25.4 mm (1 "). RMS rated power: 250 W, Frequency range: 37 - 20000 Hz, Impedance: 8 Ом. Connectivity technology: Wired. Colour of product: Black. Width: 180 mm, Depth: 300 mm, Height: 1078 mm