I think that model is one of Yamaha's best ever AVR in terms of features and specifications at that price point. Having said that, like
@lovinthehd, who is a very experienced audiohoic obviously, I also prefer Denon because of their better feature set/$, i.e. better value. Yamaha's are often recommended because our resident insider/expert M Code told us Yamaha's AVRs have the best reliability track record. That is an important point to consider if you are going for an expensive flag ship or near flagship model and intend to keep it for longer than 5-6 years.
If you have no intention to go further than 9 channels of surround sound such as 5.1.4 or 7.1.2, then the RX-A2080 is a better choice because of the lower price. Interestingly, for whatever reasons, the RX-A20X0 models seemed to yield equal or a little more output power on the test benches of AV magazines. The internal amp sections are more than likely identical. The 2080 just has two fewer preamp channels and can process up to 9 discrete channels.
If reliability record means not too much to you, check out the Denon AVR-X4500H and Marantz SR7013. About a month ago, the SR7013 dropped to C$1249, that is US$950 at Bestbuy and Amazon.ca, so don't pay bargain hard and don't pay more than that.
By the way, the spl calculator gives you the theoretical number as you already said it yourself. The fact is, there is no way those little Focal speakers can produce any more than 115 dB at 1 meter, let alone 5 meters, without sounding horrible or blowing up in smoke. So anything like the AVR-X4500H or RX-A2080 should be more than powerful enough to drive your speakers without worry about that 2.9 ohm dip.