Acoustic Research AR-318PS I318PS Floorstanding Speaker BLACK (price FOR ONE Speaker ONLY) Type of Speaker(s): Tower Speaker Magnetic Shielding Min Input Power Rating: 20W Min Frequency Response: 38Hz Response: 20kHz Input Power Rating: 175.0W COLOR BLACK Height (Main): 35.98in Width (Main): 9.49in Depth (Main): 11.50in