Pass Labs INT 60 VS. Primaluna Dialogue Premium HP VS. Arcam A49

I only have experience with the PL HP. Been enjoying the HP for 2 years. You will have a VERY nice sounding system if you choose the HP.

Your other 2 choices are great..but they’re SS, and simply won’t have the tube realism the HP has. Just as a tube phono sounds more convincing than a dead quite, precise SS unit, the HP will have a huge impact on your record listening.

Subjective, and it’s just YOUR ears that make the final call. Your gear is first rate, the HP will put them in their best light.

Kenepeters-

looks like you have plenty of information to digest here.

This recent Stereophile review on a speaker of equivalent retail price may have some value. The 2nd page mentions the HP able to produce satisfying performance against some upper end SS amps. Not the exact specs as your speakers, but more perspective on the HP which may be useful. 

http://www.stereophile.com/content/yg-acoustics-carmel-2-loudspeaker-0#GIFxXDoBW4Em47mP.97

All of the technical stuff mentioned along with end user worship of the HP won't replace an audition. I took a leap of faith and purchased one only because of owning a lower level model for several trouble free years. Fortunately, I  picked mine up before the MSRP increased!