the box pro Achat 118 A, Active 18"" Loudspeaker, Powerful horn loaded bass, Road proof construction, Power rating of the power amplifier: 1300 W, Max. SPL: 104 dB (1 W/m), 135 dB (peak), Frequency range: 37 - 150 Hz (-3 dB), 1 x XLR In, 1 x XLR output, 1 x XLR head output, Adjustable crossover frequency, 2 x M20 flange adaptor (one on the top, one on the side), Dimensions (W x H x D) without wheels: 55 x 85 x 72 cm, Weight: 55.0 kg, Design: black textured paint finish, Engineered in Germany, Fitting wheels: Art. #243578# (not included)