Just received the amp today! At first, it seemed like an accident to me because it costed me USD60 for import tax. And I totally forgot that I had joined the drop and the timer ran out while I was in a meeting!
Coming from a Topping DX7s, I can tell that this amp produces sound noticeably fuller than the built-in amp in Topping DX7s. I'm glad that I had this accident! ;D