Hello. MusicCast is a 'closed' circuit, a bit like Apple. The subwoofer is connected via the other Yamaha MusicCast speakers. I have a MusicCast amp for example, but even so, I had to connect the subwoofer via cable because I don't have the MusicCast speakers. I think it is better to buy another brand that allows free connection of other brands. I hope my answer is helpful.