@eddiechanghk - I can't meaningfully comment without being there- you know, room, other components, how the room is set up (I'm claiming no guru status here). I've found that just changing a power supply tube can tilt the balance of a system. In my system (and with that qualification), the Allnic sounded better than the Steelhead (especially once you roll the rectifier) and for 4 Pt. experience, mine is limited to the 9" arm. I'm a big fan of Franc's; you can call him and talk to him. Allnic- how big a deal is it where you live? I had to fix a bad solder joint and tube socket after 7 or so years, but did it locally. Didn't cost much. The tubes are still available from Mr. Park, but they aren't rare audio tubes.
I don't know what ARC represents there- you should be able to hear both.