Pass/musical fidelity for focal scala

With the type of gear you are looking at, its easy to make an expensive mistake. You don't mention a preamp. If you neglect/overlook the preamp, there will be a huge price to pay down the road. Also, the Oppo will most likely be outclassed by your other components. Put the whole system together, from source to speakers, and give equal attention to each. Even if you can't buy everything all at once, you still need to do it this way for best results.

Yes, i'm a newbie to this hobby.. Just trying to enter this audio hobby slowly, that's why i make the priority on the focal scala first, amp second n everything else slowly... Bout oppo, it's connected to the other home cinema system, but for now (oppo as a player+preamp/volume control), it's enough for me.. Trying to set "other equipment first... So back to my question, which one (mf ams50 or pass xa60.5) you think will be better combination for the scala, so i'm making a right decision "one by one".. Sorry for my language, english is not my first language... Thx..

"Yes, i'm a newbie to this hobby.. Just trying to enter this audio hobby slowly, that's why i make the priority on the focal scala first, amp second n everything else slowly"

I think you're right to enter this hobby slowly. But if you want to go slow, you have to actually do it that way. I know what I would pick if the choice was between the Pass and MF amps you list. If you take my advice, though, it does you no good. To do it right, you must decide. Either amp will drive the speaker with no problems.

Here's one piece of advice I can give you. When you are new to audio, amps and speakers are the exciting purchases. When you have some experience and kind of know what your are doing, preamps and sources are the exciting purchases.

More advice. Don't fall into the cable trap. Match all of your components properly and the cables will take care of themselves.

Thx.. I'll keep in mind ur thought.. Meanwhile, is there any problem bout reliability about the class A? How hot can it get for long use?