Industry leaders don't rest on their laurels. Besides, relaxing has never been in REL's vocabulary. For its latest standard-setting line of subwoofers, REL went back to the chalkboard. Serie T/i features upgraded alloy and fiber drivers, thicker cabinet walls for greater control, and an improved bass engine that reduces mass. These new models, and REL's superlative Gibraltar, Serie S, and 212/SE components rewrite the rulebook when it comes to subs.