Can suggest an alternative that works remarkably well for me. I too have a Red Wine NOS Dac that I do not plan to replace simply because the sound quality with Red Book playback is wonderful. I've been using Sonos as a transport, with FLAC files streamed from a NAS. I added a reclocker from empirical audio (Synco-mesh) and was amazed with the result. A dramatic transformation. When Deezer lossless streaming became available on Sonos, the switch from spotify is what I have been waiting for. You have to invest in two devices, Sonos and synco-mesh. The result, reclocking the stream from Sonos snaps everything into focus for the enormous soundstaging, warmth and tonal beauty thet the Red Wine NOS chip can deliver. All this and the elegant simplicity of the Sonos platform. You can add that to the variety of a lossless CD quality library music from Deezer.