Finally got some time to listen to the opticalRendu last night, even though I received my oR on Thursday. I thought it did sound different when I first hooked it up then when I listened on Saturday night, so maybe some break in happened there. I am using hqplayer desktop 4.0.3 as the software playback which I purchased earlier this week. The sound is extraordinary, I'm hearing lots more detail then before, the songs almost sound like different songs because of all the new detail, where sounds blurred together I'm getting more separation of instruments and clarity of voices. I am using the starter kit while I wait for the opticalModule, I didn't have a problem with set up, since I already own the microRendu, and ultraRendu, using sonicorbiter which was already set up on my computer, just had to choose the opticalRendu as the rendu to play back using hqplayer. My power supply is the Sonore signature power supply, my dac is the Resonessence Mirus Dac, my preamp is PS Audio BHK signature preamp, my amps are the PS Audio BHK 300's monoblocs, my interconnects and speaker wires are Iconoclast, my Ethernet cable is AQ diamond. I'm looking forward to other peoples reviews.