Maybe I misunderstood your post, and I assumed that you had already decided upon Salk speakers. Jim made an excellent point. Speakers should be selected, if possible, before the electronics. IMO, the Denon/W4S combo will sound a lot better driving the HT3 or HT2-TL than the Denon/W4S combo will sound driving some other speakers. Get the speakers that you like the most (that will work in your room; the HT2-TL will work anywhere), and then pursue amplification. The Salk speakers have very nice high end, and you won't have to worry about them sounding harsh or shrill compared to other speakers. Later, I think that you might find, having the Salk speakers, that you can improve your amplification. I have two AVA DACs, two AVA preamps, two AVA amps (tube and solid state of each), and only one pair of speakers that I listen to (HT2-TL). If I hadn't obtained great results from my AVA gear, I would not own any AVA gear, and I certainly wouldn't own two separate AVA amplification/DAC systems. (Each system is a little different, and I listen to both.) I don't have an unlimited budget, but there are a lot of choices in audio purchasing, and I would have spent my money on something else if I decided that there were better choices. In addition to the other attributes of the AVA gear, Frank voices his amplification in a way that is very compatible with the way that Dennis voices the speakers, and Frank and Dennis seem to have similar opinions about the way music should sound.
You will enjoy the Salks. Good luck.