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

The Pass Labs dealer says the INT 60 will work tremendously with my Sasha 1's. He says there will be a huge difference from my Arcam A49. The Arcam A49 has the power and is very good and my Arcam dealer says I would need to spend over 13K to really make a difference. My Primiluna Dialogue PREMIUM HP dealer says this tube amp will better the Arcam and the Pass Labs & will work incredibly well with the Sasha's. Since I have to order the units I have no way to try them out with the Sasha's. Wilson Audio believes the Primaluna Dislogue PREMIUM HP would work very well, as well as the Arcam & the Pass Labs. 

Thank you for your input, for less than $280 (shipping) I can try out the Pass Labs INT 60, I know I will love it, just do not know if I will like it more than my Arcam A49 to justify the cost. I think the Primaluna Dialogue HP would be completely different, I have never had a tube amp before & it gets great reviews, but probably system dependent. 

alfa100 & leotis, I will only be able to get a demo Pass Labs INT 60, not the 150, I believe the INT 60 will perform fine with the Sasha 1, although now I have 400 watts (4 ohm) now. I had an Arcam before this with half the power & I was not happy with that. My main concern with the Pass Labs is the brightness with digital high rez files and Tidal. I have not heard this amp, just read excellent reviews. My turntable sounds great , especially with the tube phono stage (Manley Chinook). 

All this information and now a new amp choice came in to play, the T & A (Theory & Application) R2500 built on the HV platform which is close to the same price as the Pass Labs INT 60, but with more power. 

Deep down I really wanted the Primaluna Dialogue HP but ended up going with the T+A PA 2500R because I knew it was a sure bet, it has the power & warmth I wanted, even more than the Pass Labs. When I can save up I will also get Primaluna Dialogue HP for my other system. 

Unsound, thank you for your input. I only have space for an integrated amp and want to make the right decision. The Arcam A49 powered them very well, just looking for a change and something with even greater detail. I believe the Sasha's are 4 Ohm.