Summary: While this is an excellent product, you must NEVER UPDATE THE FIRMWARE! It will fail and leave you with a useless heavy cinder block. You can take it to be reset at an Authorized Repair Location but the closest one to me in Eastern Massachusetts is all the way in Syracuse, New York, hundreds of...
Summary: I have owned other Denon units in the past and this one performs as advertised. Given all the functions of this unit, my one critique is that there should be a better owner's manual. I have to guess at some of the functionality. Overall, a good unit.
Summary: I have owned the 4810ci since Sept 2009. It is an amazing unit! I have 3 Emotiva amps (XPA-1,XPA-2 & XPA-5) and am using only 4 of the 4810's internal amp channels for the heights and wides. It sounds exceptional.
Summary: I researched the features of many high end recievers and settled on this one for the many HDMI in and outputs, the wireless, the DLNA, the internet radio. It turned out to be an awesome receiver except for the malfunctioning wireless.
Summary: I am a long time Denon customer having owned early 2ch audio preamps to purchasing my first receiver (AVR 5700) to upgrading into the digital video age with this 4810ci. I am using the receiver in a dedicated room + 2nd zone for home distribution.
Summary: I have owned this reciever for just over 2 months now and I can say that this is top rate gear and really does seem to have it all. There is no way that you would be disappointed with the functionality it offers, however, this is not in any way a unit for the beginner.
Summary: Bought this a week ago and finally have everything set up. Great product. Don't have any problem. Did upgrate etc. Only thing that bothers me is I can not make my iphone to work properly if I plug it into the USB port. All songs I try to play, just play for few seconds from 100% just to 30% and 0%.
Summary: Do not buy this unit. I am now on my third Denon AVR-4810CI Receiver in 45 days. One failed after 3 days, the other after 5 days and now the third has failed after 29 days. Each was successfully returned for exchange. The unit is great when it works, but the reliability is horrible.