The SuperZero 2.1 is a true high-end mini-monitor that builds on the merits of its predecessors through the addition of a 2nd order crossover and a newly revised woofer The SuperZero 2.1 is small speaker, at just 9" tall x 5" wide x 5.5" deep, that achieves its lifelike mid-range and high frequencies through acoustic suspension technology This compact, well-braced cabinet coated with a beautiful black gloss laminate is designed to be inherently strong and stout in order to avoid the unwanted vibrations that afflict the mid-range performance of other speakers on the market