At REL a deeper understanding of quality underpins everything we do. So whilst 212/SX thunders and shakes foundations it also resolves detail and restores mid range warmth to its correct balance. At 1000 watts with (4) 12\" (350mm) drivers 212/SX drives rooms hard and in multiple modes which allows it to create richer bass everywhere in a room.Refinements to both our legendary ultra-fast filters and newly developed drivers produces harder slam and brings to life quieter gentler moments improving system performance at both extremes. Plays brilliantly with both high end 2-channel and large power theatre applications.