Canton"s Ergo 670 DC is a 2-1/2-way floorstanding speaker. Able to handle up to 170 watts, each wenge-veneered enclosure houses a 7-inch aluminum wave surround woofer and midrange driver, as well as a 1-inch aluminum-manganese tweeter. The Ergo 670 DC features DC technology, which allows the speaker to provide sharp, precise bass reproduction at much lower frequencies than can be attained with conventional crossover designs.