A fast response from the seller
"Hi, my friend
I am sorry for that.
I have asked the technician, and he said the problem is the Technology blind spot for the board at present.
It's diy product, so the price decide the sound effect to a certain extent.
Maybe you can change the power supply to a potential transformer, maybe it will be better.
Any other question, please let me know."
Basically with the same attitude as I when I bought it. It is such a cheap dac that I can roll and monkey with myself....exactly why I bought it...but kind of wanted it to work :-)
Looking into different OP AMPS and I will keep you posted.
The new OPA2132P does not sound as nice as the 2134, not as much bass or depth, but its not bad.....gives me hope for rolling :-)
Thanks again!
db