Tube integrated amps -- new Value Leaders?

of these Chinese made amps (e.g. Muzishare, Reisong, Wilsenton etc....) that seems so well built but I am concerned with support after the sale / warranty and auditioning them is a challenge

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Not sure I would place~~~~ Reisong or Oldchen~~~ in this illustrious group. Warrenty, as you say all units are built to last with minimal/no repairs.

Add Yaqin in this solid group of amp manufacturers, , They’ve come a longggg way and have now steped up their quality. My tech cked out the component build,, he was impressed, no complaints, It is not scaffold, thus I can not swap out caps to Mundorf. I prefer scaffold. Much easier to repair, and modify 400 hrs and is perfectly quiet, no hums, just nice music, swaped out the front tubes to Teles. These stock($30ish each) 2A3’s easily beat out RCA 2A3 NOS.

Does not have Pre-in, but does have my 2 fav pre tubes so I can use my Tele's. 

IMHO, I agree that Black Ice Audio is one of the new value leaders in tube integrated amps as @bogbeat pointed out.

My “Skunky Audio Designs” modified Reisong A50 Mk III displaced a $20K CJ Art 150 in my AG Duo Omega G2 main system. 😎

Is it “better “? Well, it’s different and to MY EARS a better complement to the AG’s. The midrange is to die for and the soundstage ENORMOUS. 

I had my interest in this Muzishare R100, just watched the video demo,, I had no idea they offered a Phono out as well PLUS the Pre IN jack.

WOW,,

You see here is where Muzishare went 1 up over their top competitors, Cayin, Line Magnetic, Doge.

PLUS

has a pair of my fav pre tube, 12AX7;’s PLUS 6SN7’s if thats your fav pre tube

I’d rather have 2A3’s as driver tubes,,, vs 300B’s,,, but who is going to complain at this price.