ADD MORE BASS - 6 inch woofer with 210 watts of premium bass that adds more sound to your sound stange EASY POSITIONING - Big bass in a small package allows for ideal placement on a desk or behind a chair or sofa PLUG AND PLAY - Works with all speakers, receivers and turntables equipped with RCA analog output. Upgrade any music speakers, bookshelf speakers, or home theater speakers effortlessly GREAT FOR - Gamers, movie buffs and music lovers for home theatre, surround sound or gaming PREMIUM QUALITY - Heavy duty hand-painted and hand-finished MDF cabinet, anti-resonant steel frame, and heavy-duty rubber speaker surround, with selectable crossover frequency adjustment, and phase switch