Unfortunately, the board appears to be not well designed for manufacturing. It is probably very precisely designed and the degree of precision does not allow for manufacturing tolerances. This is just a guess, of course, but it does seem to suffer from a high reject rate and more than normal early failures in the field. Fortunately it would seem that in most cases if these DACs live through their first few months that most will continue to operate as normal for a long time.
J.P.
It seems to be just LH Labs that has these PCB-board issues.
Can all the instability come from a design issue with the Pulse PCB-board?
LH Labs have had problems with their PCB board since 2015.
All batches of Pulse PCB board have failed in recent years, I'm afraid that the next batch will do the same.
I wonder how many PCB assembly factory that have tried to make Pulse PCB board the last two years?
Does anyone remember this from December 23, 2015?
Note that Pulse delay by switching the PCB assembly factory was only four week.
The other reliable PCB assembly factory also failed to make PCB board for the Pulse.
Message from Larry and Production.
We know you have been waiting patiently for your Pulse Infinity and would like to extend our sincerest gratitude. Pulse Infinity DAC in 2.0 chassis alone has more than 500 backers in total. It has been quite the ride and we are continually pushing to get our Pulse Infinity DAC in your hands. And we're roughly half way through it.
You are receiving this email because we just received PCBs from our assembly factory but according to our internal quality standard, this whole batch of board are not qualified. Needless to say this has caused a delay in shipping, and we already contacted another reliable PCB assembly factory to restart the work of this batch. We wanted to personally inform you of this matter, while production does everything in their power to resolve this issue in a timely manner. The expected impact of delivery schedule will be four weeks. Again, we want to express our gratitude for your patience. We will restart the Infinity DAC shipping towards the end of January.
Hope you could support our decision of insisting on the best quality. If you have any particular question in mind, you are welcome to go to support.lhlabs.com to open a ticket for your Pulse Infinity order.
Thank you so much,
Larry & The Production Team