Any body got this receiver, what are your thoughts? I'm thinking of upgrading my 2113 to this model with the 3313 BD player...
Living room: Panasonic TX-P50VT65B (calibrated), Sky HD 1TB, Denon 3313UD, Denon 2113 AVR, Focal Chorus 716 5.1 & def tech rears, iPad mini, iPhone 5s, Harmony Touch
Bedroom: Panasonic TH-46PZ85B plasma, Sky HD, Cambridge Audio DVD 57.
Can't speak specifically for this unit, but I have the current step up, the AVR4520 and I find it to be an excellent amp. In fact I prefer it to my old Onkyo TX-NR905, and that was widely regarded as being a class leader in its day.
I bought myself one for christmas. I upgraded from a 2105, so guess sort of a similar upgrade to what you're looking at.
I'm not really good with the "hifi lingo" but I'll just say I couldn't be happier. The difference in sound quality far exceeds my expectations. I now finally realise what my Monitor Audio silver series is supposed to sound like.
I don't think you'll be sorry if you go with the X4000.
This is out of my budget but I've always loved the dennon avrs. If I had that money I'd buy it