I’m experiencing intermittent pops and clicks when using the microRendu in the following configuration:
BRIX i7 RoonServer/HQ Player
Upsampling Tidal 44.1kHz to DSD128
microRendu NAA DoP
Mapleshade Clearlight USB cable
The microRendu is powered by the iFi PS connected to a power board with a Cawsey Audio Powerbox (HF choke) to the wall. The voltage out of the wall is nominally 240 volts, but the power supply to my amps (Dussun X1200) nearly always shows 249-250 volts out of the wall.
I’m suspecting the wall power is too high a voltage for the iFi. I will experiment with 220v and 110v inputs and report back here.
If there is other equipment on the network, there might be a jabbering interface. I had to replace a network switch a while ago because it was sending all sorts of crap out onto the LAN. I had drop outs with Roon and stalls in my video from Plex. Once I replaced the switch all my issues went away. The sad thing is a replaced a $120 Cisco with a $30 Chinese generic… Can’t judge a book by its cover I guess.
Yes switches have been the problem for quite a few users with network issues. For some reason I feel like this is more power related than network related. No doubt that means I will try various power solutions unsuccessfully before finding a bodgy network device
No clicks or pops tonight and no changes to the system. Upgraded Roon to alpha version of current build before first report above so don’t think it was that. Maybe restarting the BRIX made a difference. The mR is left on.
If I leave my Aune DAC powered it will start making static-like noise when I change audio file types (e.g. DSD to FLAC). Simply turning it off an on clears the issue. I now shut it down at night and no more problem. Maybe you had something similar…
This isn’t completely resolved. Have been running HQP on -6 dB for a few weeks. I still hear an occasional pop. It’s much reduced in extent and only occurs with HQP NAA, not with the Roon Ready input. CPU usage on the BRIX is between 70-90% upsampling to 128DSD using closed form filter and ADSM 7 so that has become (finally) the next suspect. Will experiment further with pipeline SDM.