Today my parcel with the Cerulean RX+TX arrived and I was suprised that I can even hook them up to my normal home receiver. So instead of connecting them with my little iPhone dock I gave them a short test run connected to my 5.1 receiver. And it worked right away. Tomowwo morning I'll test if they even work for the alarm bell. If they do, I'll most likely wake my entire apartment
Anyway. I just wanted to thank everyone involved. You RAWK!