I purchased these in March, 2017, unboxed them, and never got around to using them. I’m upgrading my system to the Legacy Aeris and have no use for the subs. The price is for 1 but 2 are available as well as the wireless transmitter. The S10 is the flagship of the S series and is self-powered by an ultra high current 500 watt class D amp with a 1kilowatt peak. They come with hi-level (spkr level) cable and have a built in receiver. Add $100 for the receiver but if both units are purchased then I’ll include the transmitter at no cost. The reviews have been excellent and they’re a bargain at this price and will take your 2 channel or home theatre system to another level.