So, the mailman just delivered my D100 an hour or so ago.
I was actually going to get the TubeDAC-11 suggested to me by Project86, but as I was searching on eBay I noticed a local seller with a used D100 for sale at a relatively cheap price, so I figured I might as well try it out.
I found an old adapter and plugged in my JH16s. It all sounded pretty sweet untill 2 minutes in when it suddenly jumped ALOT in volume and more or less killed my ears, then it started with that scratchy sound that you got on old TV's when nothing was on at night. Then it returned to low volume, and the process started all over.
I've tried both the "Low" and "High" headphone sockets as well as trying with 2 different adapters.
Any clues as to what could be wrong? It's plugged in via USB.
Additional info: Using an onboard soundcard at 2% or so volume and the D100 at 1-2 ticks above zero. (Seems I should be able to control the volume better than this, but it goes loud really fast?)
My motherboard is a Gigabyte 55A-UD3, not sure about the "sound card".
That's exactly the reason why Yulong is releasing the MKII version with the different USB receiver. My working theory is that the original units aren't necessary "defective" (as in they just don't work....) but there is something about the TAS1020B USB chip, and the custom code it is running, which is not compatible with all motherboards. Many people have never experienced issues, but a significant number of people have. Enough people where Yulong felt the need to do something about it.
It's probably frustrating for them since the unit would come back for "repair" and not duplicate the problem on their end. So what do they do at that point?
In any case, the seller who you purchased from may have had no idea that this particular D100 would have issues with your computer. Or maybe it had issues for him as well, who knows? Your options:
1) Keep the thing and use it with your Mac, which doesn't have the problem.
2) Get a USB to SPDIF converter and run it that way, possibly increasing SQ due to the extremely low jitter (if you buy a good one). I've not heard reports of the SPDIF inputs ever having issues.
3) Try to track down Yulong and see if he will fix it for you. He has his own subforum on Erji.net and there are people in this thread who may be able to assist with translation.
Sorry it didn't work out!
Edited by project86 - 3/6/12 at 4:57pm