Best Baltun,
nice question!
to the point, i don't heard all 4 you call.
the most expensive amps are a bit to cold to pure. They made for classic music.
but then there are good allrounders on the market.
i listen to serveral different gernes and as you read my signature i am a huge fan of NAD and now you know wich of the 4 you call i will recomends,
the NAD M3. but there alwaws be a but, you have different ears on your head than i have. :rofl:
then we must not forget the speaker systems! Wich speakers do you want to connect on the 4 amps? Do you want protect your speakers or have a set of Emergency speakers for metal? I play sometimes very loud on a NAD/JBL combination and stil i don't blow up any part :rockout:
in history i set amps in fire and smoke, then i must get another amp and speakers :dance:.
last but not least in this post is my recomendation to go visit good hifi stores and take a seat and listen to serveral set-ups and make your disition a bit later.
So i done it and what i discouvered is that all the special amps i listen to were not my cup of thee, the tube and hybride amp. I prefer the good old solid state transitor amps. :boohoo: