[thatonenoob]

  hell no, fideio x2 is greatly overrated, mostly due to z reviews. if you want to upgrade from hd555, you can get the o2odac or you can get the hd650, or you can get both - but tbh o2odac+hd650 is the endgame everybody should be using or aiming to get, and if you want to take it up a step, then hd650 + ldmk3 with nos mullard tubes is the ultimate end game in the human experience. 

You've now been recommending the o2odac and 650 as the endgame for everyone's personal audio needs on multiple threads.  This is very misleading and honestly not true.