This is fully tested and working, unbelievably powerful. The PreSonus Pro Sub 10 is a very powerful house shaker subwoofer designed for professional audio applications. With a 10 driver size and various audio input options such as 6mm jack, Stereo L/R RCA, and XLR, this subwoofer delivers impressive low-frequency sound performance. The sleek black design and wired connectivity make it a versatile and high-quality addition to any speaker setup, perfect for DJs, musicians, and audio engineers looking for a reliable and powerful subwoofer solution.