An easy way of checking phase, without having to rewire anything is listen to a sound track with preset phase switching. A good one at Youtube is:

My problem with the tips was the silicon. After a few minutes my ears felt itchy. I prefer foam, and ordered these tips at Amazon: https://tinyurl.com/y296j5ft They fit well, and are comfortable for long periods of time, YMMV.

I am playing DSD 11.28 MHz D256 from JRiver Media Center 25 (DoP 256 4X 1Bit 2 Channel) to my Gustard U16 I2S thru to Holo Audio Cyan. I tried to play the same thru Roon, however stuttering on anything higher than D128. Must be a better renderer in JRiver than Roon. On the other hand I cannot...

I was having similar problems with my Gustard U16 feeding a Holo Audio Cyan dac. In another Head-fi thread it was suggested that the USB drivers were common to Thesycon drivers. Thesycon is apparently the usb software developers for various manufacturers including FiiO and Gustard. In fact these...

I recently acquired the Gustard U16, and have been using it as a front end for the Holo Audio Cyan. Very pleased with the Gustard U16 as it vastly improved the Cyan clean sound and imaging, making the Cyan nearly holographic. My only problem was that after my NUC8i7hvk Windows 10 startup, the...

https://www.headphone.com/blogs/news/holo-audio-cyan-dac-amp-review Review written by Ian Dunmore (@Torq)

@johnjen , many years ago I worked for a solid state power supply company, and was involved with product development and testing. MTBF studies were performed with thermocouples strategically placed within the chassis. In addition, after each test the chassis was rotated through various loads...

I have my Tacx Neo wireless indoor bike ac power controlled by a remote controlled wireless outlet, https://tinyurl.com/ycuf5gw. If you plugged your audio devices into your power strip, and the strip power cord into the remote wireless outlet (plugged into an ac wall outlet), you could remotely...

I have been using the Beyerdynamic Aventho for a few months now and am extremely pleased. These headphones have been personalized to my hearing profile utilizing their MIY (Make IT Yours) app, IOS and Android. Although my hearing like yours has heard much better days, and some of the app testing...

Yggdrasil: Analog Stage: Fully discrete, DC coupled Class A FET buffers optimized for high current output and fully discrete, Class A FET summing stages for single-ended output Gungnir Multibit: Analog Stages: Fully discrete JFET buffers for balanced output and discrete JFET summing stages...

I recently purchased the Beyerdynamic Aventho Bluetooth 4.2 headphones. They are hearing test enabled via a MIY smartphone app. My hearing has been steadily diminishing over the years and I decided I could use some assistance. The app adjusts via personal hearing test to the users hearing...

I have performed numerous MTBF (mean time between failure) studies utilizing thermocouples strategically placed within and on power supplies. At the time I worked for a power supply firm engineering mil-spec units for government and industry. The heat generated by solid state devices, and...

  I would look at the problem this way: technology and equipment keeps advancing. Either you do the work now, and get your music working, or you will have to do it later. It is your choice, but if it were me I would, no doubt with some impatience and annoyance, get started now.

I also installed Poweramp, and found it poorly sounding compared to Fiio pure amp. In addition, I have found that using Fiio as a DAC with my Windows 10 computer, fed from J River Media Center as a front end, provides a clarity, dynamic range, and remarkable instrument resolution that I have...

DvdFab has a free download for playing Blu-Ray discs. I've been using it for years. http://www.dvdfab.cn/virtual-drive.htm