VIBE BLACKAIR 1500 watts 12" passive subwoofer enclosure with 8" passive radiator Perfectly designed for todays demand for high performance yet small footprint bass enclosures. Passive radiators enable the great bass response in a small enclosure with no port, with the advantages of no port non linearities and no high frequencies reflected out of a vent. Fully compatible with our plug and play micro amplifiers. Specifications: 12'' Passive Subwoofer Enclosure 1500w Peak 500w RMS Dual passive radiators enable great bass from small size Dual 2 ohm Dimensions: 13.8" (351mm) x 15.8" (402mm) x 11.4" (290mm)