I signed up for a pair of deepblue2 systems from the Indiegogo crowd-funding project to build a portable system. I received the systems in early January. I have a 3.5mm cable that splits to two RCA connectors at the end, then individual interconnects go to each speaker, with a mono RCA to stereo 3.5mm jack at the end that plugs into the deepblue2. Each speaker now outputs a single channel. The remote control works on both systems at once as long as you point it towards the midpoint between the two speakers. The sound of the two systems is much improved over a single system (which is what I used before I got the last set of adapters). I am very pleased with the result.
