Boomer : 8 Built-in amplifier : 90W Frequency response : 31Hz – 250Hz Settings : Level, Phase, Crossover (40Hz-150Hz) Dimensions (W x H x D) : 270 x 280 x 275 mm Weight : 10 kg Packaging Size (W x H x D) : 335 x 400 x 365 mm Packaging Weight (Net / Gross) : 10 kg / 12 kg