Definitive Technology BP6 Tower Loudspeaker (Single, Black) Single bipolar tower loudspeaker Equipped with two 5.6-inch mineral-filled homopolymer-coned bass/midranges Frequency response: 25Hz - 30kHz Equipped with two 1-inch pure aluminum dome tweeters blended by a Linkwitz-Riley crossover Finished with piano-gloss black with wraparound black grill cloth