Originally Posted by audio4life
Well, there's a reason it's being sold off heavily discounted in case this is a surprise to you. I'm not one of those that chases every new bell and whistle, certainly not when so few movies have the Atmos codec. It still remains uncertain whether Atmos becomes the norm down the road, or becomes the betamax of its day. In the meantime, the 4520 is the best sounding avr I've ever owned, has height and wides channel options which I've not even experimented with yet, and cost me so little to boot.
Um, sure, that X4100 is discounted because it's a refurb. The 4520 is even more heavily discounted (new and refurb), but it's a stellar AVR notwithstanding, wouldn't you agree?
And just for the record, I've got an X5200 and I still use DTS Neo:X 11.1 as my default mode for music sources. So in this regard, I would be just as well served with the 4520.
But, the availability of Atmos-encoded movies aside, the Dolby Surround Upmixer (DSU) is a fantastic feature and well worth the price of admission IMO while we wait for more than a trickle of Atmos BRD's to hit the market. I have had my X5200 for over 5 months and have yet to listen to a single movie in Dolby Atmos; but I have
listened to countless movies in Dolby TrueHD or DTS-HD MA with DSU engaged and the results are phenomenal. YMMV of course, but while I deplore the absence of a single worthwhile Atmos BRD to this point, yet I am thrilled with my purchase and not at all sorry to be an early adopter. Two years from now I may well have moved on to the next big thing, but in the meantime I am enjoying my A/V system more than ever before.