Hi there, I was looking at the specs sheet for the Rockets/Divas and noticed that the nominal impedance is 6 ohms. I have not listened to these speakers yet. I'm sure these speakers (Diva 5.1, 6.1 or the Rocket 550, 750) would sound great if driven by separates, but has anyone been using Denon or Yamaha receivers to drive these things? I have an RX-V 995 Yamaha, and I'm wondering if I'll have to upgrade the receiver if I decide to upgrade to the Rockets. Also, if anyone is familiar with the Yamaha 995, do you know if it is worth it to upgrade to the Denon 3800 (in terms of driving the rockets) or would the 995 be sufficient? Anyone use a Denon or Yamaha receiver to drive the Rockets? Thanks for your help!