Minimum impedance for those Focals is 2.8 ohms, will be a very tough load if the attending phase angle is steep and if this minimum is in the bass frequency range (which it most often is). The two amps you are weighing have power ratings at 4 ohms that could be an issue IMO. You might want to consider a hybrid integrated (Copland makes a good one) with a solid 4 ohm rating OR ditch the Focals for the new Mofi Sourcepoint 10s, that way you could be sure the amps you're weighing are gonna flourish (if your room isn't big at least).
Audio Hungaray Qualiton A50i vs LTA Z40+ Integrated
I need help deciding between the Audio Hungaray Qualiton A50i and the LTA Z40+ Integrated Amp. Both seem to be great but I can get the Hungarian for 1k cheaper. I will be using them strictly for music. I plan on powering a pair of Focal Aria 936 K2's and a sealed sub, maybe two. Like everyone else here, I am looking for the best sound quality possible. Thanks