I've been reading more about the MHDT DACs in forums all over and one theme keeps popping up. Time and time again, I see owners saying the reliability has not been great from boards going bad, to tubes dying quickly, to inputs not functioning anymore. The reviews of the sound are encouraging, but it seems like they don't last too long past their warranty end of 1 year before some failure or another. Can any long-term MHDT owners confirm that?
I haven't had mine for a long time, but here's a story about my MHDT Orchid. I bought mine second hand here a little over 2 months ago. Initially I was using it between my Blue Sound Node 2 and my preamp, connecting via coax.
I decided to give it a try in my computer system and when I tried to use the USB input, I couldn't get it to work. At first I thought it was a driver problem, so I contacted Jian at MHDT. He was very helpful, but the driver didn't fix the problem. He said "
mail me your shipping address, I'll send a new board to you." Mind you, I told him that I had purchased it from someone else. Within a few days, the new board arrived and it did take care of the problem.
Other than some frustration and a few minutes to swap out the board, it didn't cost me anything. I'm guessing that there may have been some problems and they are aware of them, but it also seems that they stand solidly behind their products. Whether there's been a fix moving forward or not, I don't know.
My suggestion would be to contact MHDT and ask. Jiun was very responsive and I was frankly very surprised that he would provide a replacement board for free to someone who wasn't the original owner.