Klipsch R-i12SW Subwoofer

I have 2 floor Klipsch R-i12SW powered subwoofer. It's black and has a 12-inch driver. Great for home theatre setups! Iv had them for months now and haven't got to hook them up and they take up to much space in my SRO room so I need to get rid of them to make space I'm my small room so need to seel quick thanks