This super-compact active subwoofer has the speed, subtlety and pitch accuracy to enhance the highest quality music reproduction but it can also deliver the power and slam demanded by movie soundtracks by virtue of its ported, downward-firing 205mm (8") driver, controlled by a powerful built-in 100 watt Class A-B amplifier. It has a variable crossover frequency control from 40Hz-180Hz, 0-180 phase switch, stereo, LFE RCA inputs, silicone rubber anti-resonance feet and two EQ settings for music or video programme optimisation.