I can mod anything. However, the size of some of these really cheap DACs limits what you can do with them......Also, most people buying a $250 DAC are not going to spend $200 (minimum charge for modding anything) or more on mods. The best use of my expertise is to take an already over achieving moderately priced DAC (Schiit, EE, Peachtree, Wyred for Sound, etc.) and take it into a whole nuther realm of transparency. My simple mods to the EE DAC Plus or Wyred for Sound DAC 2 would blow most people away.