Proel S18A, Active Hybrid Bandpass Sub-Woofer, With integrated ClassD digital power amplifier, Equipped with: 18"" Woofer, Power: 600 Watts, Frequency range: 34 - 140 Hz, Maximum output level: 131 dB, Switchable high cut: 80 Hz/160 Hz, Switchable phase: 180°, Connection panel with 2x XLR/jack combo input, 2 x XLR Link out and 2x XLR Line out, 4 x 75 mm castors, 36 mm Stand flange mount, 2 Handles, Dimensions: 508 x 630 x 645 mm (745 mm incl. castors), Weight: 36 kg