Gustard X30 disappointment

I wouldn’t mess with this — Gustard has had a history of having some reliability problems, so I’d just return it and if the second unit has issues I’d punt and buy something else.  You could get the Denafrips Pontus and Hermes DDC for just a little more than the X30 just for one example.  Best of luck. 

I haven't heard of Gustard having bad reliability.  I had an R-26 and now an X-30.  No issues with either of them.

As mlsstl mentioned, every manufacturer will have some issues in some units.  The problems could be a result of rough handling in shipment.  I sent a conrad-johnson preamp back to a dealer and all of the large capacitors came loose.  The shipper probably dropped it. I'm not saying that's what's happened here, but I've seen UPS, etc almost drop kick gear out of their truck. 

I also have a R26 and am quite fond of it, that's one of the reasons I went for the 30, 

I swapped the cables and the problem transferred to the left, it is the unit. currently waiting to hear back from the seller.

I'm not following.  If you swapped cables and the problem moved, wouldn't that be the cable?  

Swapped only the ends on the dac, that proves the cable is good as well as the rest of the chain.