You mentioned 795 in the beginning and now 995 so which is it? Regardless there is very little difference between those 2, and the Denon AVR-1712 has a better preamp/dac section, in terms of specifications anyway, the power amp sections would be comparable objectively, whether they one would sound better is not possible to tell as it is dependent on many other factors.
Talks of Yamaha harsh treble are just subjective based hearsay, based on specs there are no evident that supports such claims one way or another. I would bet analog sources, in direct mode they will sound the same if compared under identical conditions. For digital sources, the Denon will have a slight edge because it has better preamp/dac section but the differences may or may not result in audible differences, though again, it is possible. All my comments are based on both units of
fintech zoom in original conditions, for used/old units, all bets are off, even if only lightly used.