FBT Subline 115SA, Active Subwoofer, Equipped Loudspeakers: 15"", Housing construction: Bass reflex, With 1400 W Class D power amplifier, DSP with 8 presets, Frequency range: 42 - 120 Hz, 8 Step Delay from 0.25 m to 3.5 m, Stereo input, Phase switch 180°, M20 Speaker pole mount, Dimensions (W x H x D): 500 x 517 x 570 mm, Weight: 28 kg, Optionla suitable covers: Art.#463159# or Art.#463158# (not included)