I'm looking for a single ended integarted DAC/headphone amp for Dan Clark RT headphones, which are 12.5 ohm and 87 dB sensitivity. Expecting to use USB input. I am not sure how to pick. It seems like there are a bunch of good-performing Chinese brands, but they maybe have questionable reliability. I saw a thread about somebody's Topping product "exploding" which sound pretty troubling. In Amir's sabaj a10d review it malfunctioned until he power cycled it, which doesn't seem encouraging. So how should I pick a good option? Should I be scared of the Chinese brands like Topping, Sabaj, SMSL with regards to reliability and QC?