The PA subwoofer set includes two CARME-112SWPW subs. The CARME-112SWPW is a professional-grade, powerful, roadworthy and affordable PA powered subwoofer in a light-weight and ultra-portable form factor A 12" top quality subwoofer and a built-in class AB amplifier with 400W RMS, 800W peak power output crank out massive low-end punch. The Low-Pass Filter (LPF) makes an already outstanding subwoofer even more efficient and delivers deep and focused bass Folded horn design improves power efficiency and delivers mighty low-end bass. It allows the sub to be built in a compact-size enclosure without compromising sound quality XLR/RCA inputs and XLR output allow the speaker to be easily connected with your PA system. A universal 35mm pole socket on the top for mounting satellite speakers The white plywood enclosure is more than beautiful, it damps out unwanted vibration and guarantees reliable and consistent performance