The Electro-Voice ZXA1-SUB 12'' Subwoofer is an incredibly portable sub with impressive power, crisp highs and outstanding low ends. The ZXA1-SUB offfers 700-watts of self-powered output to add thunderous lows and highs to speakers in a live performance. Class-D amplification technology ensures that even though the subwoofer is lightweight, the sound quality isn't sacrificed. There are dual XLR stereo inputs and outputs with a pole mount for use with full-range systems. The subwoofer is housed within an internally braced, 9-ply wood enclosure with textured paint and includes an integrated carry handle for easy storage and transport.