15"; 275W; FREQ RESP: 20 HZ–180 HZ VARIABLE; S/N RATIO: > 80 DB; DOWN-FIRING, LONG-THROW SUBWOOFER WITH TUNED VENTURI PORT ; BASH TECHNOLOGY POWERED AMPLIFIER ; ADJUSTABLE CROSSOVER, AUTOMATIC ON/OFF SIGNAL SENSING ; DOLBY® PRO LOGIC®/DOLBY® DIGITAL SWITCHABLE INPUT; GOLD, 4-WAY BINDING POSTS WITH EXTERNAL FUSE & AUTO ON/OFF ; 7-YEAR WARRANTY ON WOOFER & 2-YEAR LIMITED WARRANTY ON AMPLIFIER; BLACK;