Assuming different modules used, like ABletec or Pascal or Icepower, make a difference in the sound, which I would expect to be a reasonable assumption, it bothers me that D-Sonic is not more forthcoming about what goes into what models that they sell.
If it were the case that D-Sonic had an identifiable "house sound" that they always target, it would matter less to me, but I would still want to know what is the same and what is different technically.
I can see where this policy would make it harder for someone to do a meaningful review of value.
My guess is D-sonic is marketing on price/vale mainly and in fact may do quite well as a result.
SOme more user reviews would be nice. User reviews where user opens up the box and identifies what is inside specifically even more so.