Selling my brand new SpeakerCraft SDSi-10 subwoofer — still sealed in box and never used. I originally bought a pair for a home theatre project that didn’t end up happening, so letting them go. This is an absolutely solid sub: a 10” long-throw active driver paired with dual passive radiators delivers deep, clean, room-filling bass. Rated at 500W RMS (1000W peak), it has more than enough power for movies, music, and gaming. The build quality is premium, with a sleek black satin finish that looks great in any room. I was really impressed with the reviews and specs when I bought them, and I know whoever picks this up is going to love what it adds to their setup.