I think you'll like the 3500, but I do agree with PENG. I think it's worth the extra 100 to be a little more current, and offer a little more room for expansion down the road.
*PS, that is if they get more stock. Looks like they don't have a 3600 available right now.
*PPS, this Marantz SR6014 for $899 is right in line with Denon's 35-3600 series receivers with similar power specs, atmos and MultEQ XT32.
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