[Pre Order - allow extra time] Behringer Eurolive VQ1800D Active 500W 18" Subwoofer with Built-In Stereo Crossover Live Sound, Mobile DJ, 18" Subwoofer, 500W Class-D Amplifier, Built-In Active Stereo Crossover, 2 XLR Input / 2 XLR Thru / 2 XLR Output,...