VIBE OPTISOUNDAUTO10A-V4 Optisound Slimline 10 Active Car Subwoofer 900 Watts. The OPTISOUNDAUTO10 active enclosure features an industry-first integrated DSP mono amplifier, providing advanced control over bass sound reproduction. Users can customize their listening experience and adapt it to various audio sources and environments using the smartphone app. All within a compact enclosure. Dimensions – 89(H) x 316 (W)x 400mm(D). RMS Power 300 watts. Peak Power 900 watts.