If it’s one thing I noticed from listening to Vincent amps is that they are very warm sounding. As I remember, the older Denon stuff is also voiced towards the warm side. So, even though the Vincent is a much better amplifier than what is in the Denon receiver, it is likely a very similar sonic signature. If you are looking for something with much more of a "wow" factor, the Vincent is probably not the right answer. Vincent will give you a very refined and smooth sound, but very warm sound as well (definitely laid back). It actually reminds me a lot of the older B&K amps (they were very warm sounding also).
If you decide the Vincent is not exciting enough for you, I am actually thinking the Yamaha integrateds are going to be too much on the "solid state" side. I would recommend you look at the Rotel RA-1592 integrated. In my opinion, it’s a much more refined sound than the Yamaha and it’s a lot more dynamic than the Vincent with more resolution. I am very impressed with the Rotel stuff for a budget level audiophile offering. It’s in the same price range as the Yamaha’s your looking at. With 200 watts per channel, it give significantly more power than the Yamaha/Vincent/Denon equipment. It has a pretty good DAC and also has a phono input (so you don’t have to use your Denon receiver for turntable duty).
If you decide the Vincent is not exciting enough for you, I am actually thinking the Yamaha integrateds are going to be too much on the "solid state" side. I would recommend you look at the Rotel RA-1592 integrated. In my opinion, it’s a much more refined sound than the Yamaha and it’s a lot more dynamic than the Vincent with more resolution. I am very impressed with the Rotel stuff for a budget level audiophile offering. It’s in the same price range as the Yamaha’s your looking at. With 200 watts per channel, it give significantly more power than the Yamaha/Vincent/Denon equipment. It has a pretty good DAC and also has a phono input (so you don’t have to use your Denon receiver for turntable duty).