Hi all, Sadly, my trusty Onkyo NR-808 has died in the move over to the UK. However, I am fortunate in that it will be covered by my insurance. With that, I am currently looking at the Denon AVR-X3500H as it's replacement. Previously, I used to bi-amp my mains off the Onkyo (my mains are the DLS R55 found here), but given that the Denon is 180w per channel at 6ohm: 1. Is it still necessary to bi-amp or would the power from the Denon be sufficient? 2. Am I buying more power then I need? Should I look at the X2500H instead? 3. Given that my budget is around £500, should I be looking at other options as well when doing my research? Thanks all.