The Polk Audio TSi400 are high performance floorstanding speakers from Polk Audio's TSi series capable of handling up to 200 watts of power. The speakers feature three 5.25" bi-laminate composite dynamic balance drivers and a 1" fabric/polymer composite dome tweeter with a Neodymium magnet to deliver high efficiency, detailed high frequency response, and powerful bass. They are designed with a non-resonant all-MDF enclosure with a 3/4" baffle for clearer sound quality and have a critically tuned flared ported design to minimize to minimize port noise. The TSi400 are available in either black or cherry wood grain finish, and come with a 5 year warranty. The speakers stand out from the rest of the models in Polk Audio's TSi series since they feature three mid-woofer drivers which results in higher power handling and more bass capacity.