With a 5-1/4" midrange, 5-1/4" planar low-frequency woofer and 1" pure aluminum dome tweeter cone, this Definitive Technology Pro Monitor 1000 Black bookshelf speaker provides immersive cinema sound in a small package. | Definitive Technology | | Refurbished Excellent | ProMonitor 1000 5-1/4" Bookshelf Speaker (Each | Black | Best Buy