I own a Geek Pulse X Infinity (old chassis) since May 2015 and a LPS4. I was very satisfied with the DAC, however a few days ago the DAC stopped working. The pairing with my Mac via USB was no problem, however no music playback worked (I use Audirvana). Nor could I change the sampling rate in the audio-midi-setup, it remained unchanged at 44,1 kHz, and also no output signal were provided by the DAC (I tried XLR to my amp, as every time, and also my headphone). I also tried a direct optical connection between my TV set and the DAC, however without any success, the speakers kept quiet.
I don't know what went wrong and what can I do. I hope you can give help me, especially, because I didn't receive any answer from the support until now (I wrote them a few days ago), despite of my prolongated warranty of two years.
For any hint thank you in advance.
Stefan (from Frankfurt/Germany)