Ok my brother just bought a Logitech G51 speakers http://www.logitech.com/index.cfm/speakers_audio/home_pc_speakers/devices/3549&cl=us,en He did not do much research beforehand and I had to explain to him that it might be a challenge to get surround sound to them. He bought This adapter but it is only a mini to toslink. So basically now he has everything and wants my help setting it up. The problem is that the toslink from the computer cannot plug into anywhere in the sub. The speakers only inputs are 6-channel direct or stereo RCA. We could always use the RCA if we needed to but it kind of defeats the purpose of surround sound. Is there a cable we can get or something to get from direct 6 channel to toslink or mini. I will do some more internet research but thought I would run it through here too.