the box pro Achat 108 Sub WH, Passive Subwoofer, Equipped with 8"" woofer, Impedance: 8 Ohm, Rated power: 100 W RMS, Max. SPL: 116 dB, Frequency range: 40 - 150 Hz, Speaker twist input, Speaker twist output for top - Cut-off frequency: 150 Hz, Dimensions: 360 x 300 x 435 mm, Weight: 10 kg, Colour: White, Wall or ceiling mounting is possible with Article Nr #351484# (not included)