There should be some simple paperwork directing you where and how to register for your warranty. Don't forget that part.
I think you're gonna really like it. I've seen this image of its internals posted here a couple of times.
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It's laid out nice. Note the actual real heatsinks too. Not the thin tin can looking looking ones you sometimes see in lower models. MultEQ XT32 is nice too for room correction and with the app you can limit it to just eq'ing your bass frequencies if you like how your speakers sound without eq.
If you have any questions about setup just ask. I highly recommend getting the $20 MultEQ editor app too. It gives you more control and you can get rid of the "midrange compensation" dip Audyssey applies at 2k hz.