From closet pin to DAC chip DATA Base Clock (BCLK) FS CLK, LR CLK Main Clock (MCLK) DSD On (0=PCM, 1=DSD) Ground

It use standard 20 pins daughter board. https://tong63.wordpress.com/2017/02/08/20-pin-amanero-daughter-board-f3-as-pin-20/

I think M2Tech using customized XMOS driver. Unless, using the same driver the tab wouldn't existing. http://lnx.m2tech.biz/support/

Did you try JL Sounds's XMOS Driver yet? http://jlsounds.com/drivers.html

If you using spdif, Some Dac might need receiver chip to convert spdif signal to i2s signal before feed the signal to Dac chip. Some receiver ICs have high jitter (CS841x series are 200ps or greater), some doesn't (AK411x, DIR9001, WM8805 are about 50ps or less). I'm using Leaf Audio Amanero as...

If it doesn't have signal lock problem, i would said that its sound quality was good.

It's same DAC board as your ebay link. But using Leaf Audio Amanero Combo384 (2nd version) as USB-to-I2S. You could buy from Aliexpress. From picture it's 1st version. 2nd version DSDOE is near Data pin...

ES9018, ES9028, and ES9038 could using same PCB. There are some differences in IV stage and LCD Software. On ES9018, ES9028, and ES9038Pro, IV they're using 4 resistors values 680, 560, and 120 Ohm respectively. It was design by Weiliang. However, the ES9038 IC likely to overheat if you're...

Might better than singxer as it using XU216

I just had chanced to listen Weiliang ES9018 with Weiliang XU208 with Crystek CCHD-575 (Unluckily, its 24Mhz oscillator is SCTF) and Leaf Audio Amanero Combo384 with 3 JYEC TCXO. I got second version of Combo384 though. The first version DSDOE pin is around USB connector and has 5 pin I2S...

Technical specifications Frequency range: 1.000 ~ 160MHz Frequency-temperature stability: ± 0.5ppm @ 0 ℃ ~ 50 ℃ And load characteristics of the output: Sine OR TTL Frequency Accuracy: ± 1.0ppm Max Aging rate: ± 1.0ppm / year Max Storage temperature range: -40 ~ +105 ℃ Load frequency...

Most of the time low output Volume is software fault. Some phone coming with headphone DSP, in order to prevent clipping they reduce the max volume. Try PowerAmp and enable DVC (Direct Volume Control). If the problem fixed, it's software issue.

My acquaintance, whom I mentioned, also had that problem. Instead of adjust buffer size in Music player (He using Audirvana), he said USB is not good/fast enough for Music playback so he upgraded to Thunderbolt enclosure to suffer from ground loop. Then, HDD motor started to leak noise to...

If you heard differences when switch hard drive from internal to external even changing brand or model. It could be various reason. First, most of the time, it's placebo.  For external enclosure, if you insisted that some **** happened and you heard it, there are several cases that...